Develop Bugs

Strange [and serious] lag issue, please help

I had my Pixel 2 XL since first release, running stock releases updated each month, stock kernel, and using Magisk. I also have a Pixel 2, configured exactly the same way as the 2 XL and the exact same apps. Apps are updated at the same time, same for patch releases. I carry both and use them interchangeably each day. They provide carrier/coverage diversity and allow for a longer day without charge.
A few days ago, with no known reason, my 2 XL started exhibiting a very strange lag behavior. In trying to resolve the issue, I have tried clearing Dalvik, flashing back to February, re-flashing March, and today flashing to April. I have also cleared certain app data and tried a custom kernel Nothing has helped. The problem does not exist on P2.
The lag I have observed so far:
1) I use the Google Calendar "agenda" widget. On boot, the widget is blank and shows "loading" and can take 10 or 15 minutes for the agenda items to populate (as opposed to immediately upon start up).
2) Playstore app updates: It downloads the app, but seemingly hangs and the update is VERY VERY slow.
3) On flashing the April patch, on first boot, the "Completing Android update" notification progress bar took about 45 minutes to complete (as opposed to a few seconds like it should).
4) I use Lightflow. On launching the app, I keep getting "app not responding" message. If I keep tapping "wait", it will eventually load. It is just loading VERY slowly.
I firmly believe that all of these issues are related to a single problem, like a system resource that causing these lags. At this time, I cannot update apps because it would take hours just to update one app.
I really don't want to do a factory reset if I can help it. Too many things to reconfigure, even with TiBu. Does anyone have any idea as to what might be the cause? I would really appreciate any input.
Thanks.

snovvman said:
I had my Pixel 2 XL since first release, running stock releases updated each month, stock kernel, and using Magisk. I also have a Pixel 2, configured exactly the same way as the 2 XL and the exact same apps. Apps are updated at the same time, same for patch releases. I carry both and use them interchangeably each day. They provide carrier/coverage diversity and allow for a longer day without charge.
A few days ago, with no known reason, my 2 XL started exhibiting a very strange lag behavior. In trying to resolve the issue, I have tried clearing Dalvik, flashing back to February, re-flashing March, and today flashing to April. I have also cleared certain app data and tried a custom kernel Nothing has helped. The problem does not exist on P2.
The lag I have observed so far:
1) I use the Google Calendar "agenda" widget. On boot, the widget is blank and shows "loading" and can take 10 or 15 minutes for the agenda items to populate (as opposed to immediately upon start up).
2) Playstore app updates: It downloads the app, but seemingly hangs and the update is VERY VERY slow.
3) On flashing the April patch, on first boot, the "Completing Android update" notification progress bar took about 45 minutes to complete (as opposed to a few seconds like it should).
4) I use Lightflow. On launching the app, I keep getting "app not responding" message. If I keep tapping "wait", it will eventually load. It is just loading VERY slowly.
I firmly believe that all of these issues are related to a single problem, like a system resource that causing these lags. At this time, I cannot update apps because it would take hours just to update one app.
I really don't want to do a factory reset if I can help it. Too many things to reconfigure, even with TiBu. Does anyone have any idea as to what might be the cause? I would really appreciate any input.
Thanks.
Click to expand...
Click to collapse
I don't have a good answer for you my friend other than trying to run it in Safe mode for a while to see if it helps. Other than that, only other thing you probably can do is a factory reset, which, I know, bites the big one!

Badger50 said:
run it in Safe mode for a while to see if it helps.
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Click to collapse
Thanks for that suggestion! The only condition I was able to test was to update apps. It went fine in Safe Mode. I rebooted back into regular mode and app update would hang. Based on what I read, the culprit would be a 3rd-party app?
I looked through all the apps that were updated in the past few days and do not see an app that would have the sort of large impact. There is no abnormal CPU utilization. Keep in mind that my Pixel 2 has the exact same apps and are updated at the same time. It has no such issues. I'm still lost.

The only update that could have an impact is Google Play Services. I'm on beta 12.5.21. Again, no issues w/ Pixel 2. I assume others don't have issues, we would otherwise heard about it by now.
Edit: Does safe mode run the ROM version of the Google Play Services?

snovvman said:
The only update that could have an impact is Google Play Services. I'm on beta 12.5.21. Again, no issues w/ Pixel 2. I assume others don't have issues, we would otherwise heard about it by now.
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Yeah the only slowdown I've ever had was I think right before the February update. I never restart my phone or let it die so I had been 25+ something days of uptime. Restart was all I needed and it was the only 25+ days uptime that had any slowdown. I'm stock and only beta app I'm running is LastPass.
Sent from my Pixel 2 XL using Tapatalk

My phone lags BADLY when I use Snapchat and facebook.

Considering the affected apps (Google Calendar agenda widget, Lightflow, Playstore "install" process, etc.). What do all these have in common?

snovvman said:
Considering the affected apps (Google Calendar agenda widget, Lightflow, Playstore "install" process, etc.). What do all these have in common?
Click to expand...
Click to collapse
Did you ever figure this out?
I'm still on March and have started having this issue. It's related to charging the device. Whenever I charge (and even after pulling off the charger) Lightflow becomes extremely laggy. Also, installing apps from the Play store exhibits the behavior you described in OP. Interacting with notifications is very laggy as well (i.e. - tap a notification to open the corresponding app, and the notification disappears and nothing happens...then 2 minutes later the app opens). This goes on until a reboot. After that, everything is fine until I charge again. Which, fortunately for me, is only once every 3 days.
Was not having this issue until recently and have been on March for a few weeks.

Str0ntium said:
Did you ever figure this out?
I'm still on March and have started having this issue. It's related to charging the device. Whenever I charge (and even after pulling off the charger) Lightflow becomes extremely laggy. Also, installing apps from the Play store exhibits the behavior you described in OP. Interacting with notifications is very laggy as well (i.e. - tap a notification to open the corresponding app, and the notification disappears and nothing happens...then 2 minutes later the app opens). This goes on until a reboot. After that, everything is fine until I charge again. Which, fortunately for me, is only once every 3 days.
Was not having this issue until recently and have been on March for a few weeks.
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Click to collapse
I have not, unfortunately. The Playstore app install has, for the most part, resolved itself, but the hang does return from time to time. Lightflow is still a problem. I wrote the dev but there is no response. The other issue is the Google Calendar agenda widget. It takes 10-20 minutes to load on reboot. Mind you, the month widget works just fine.
Take a look at these threads:
https://forums.androidcentral.com/moto-z-force/803793-calendar-widget-doesnt-load-data.html
https://forums.androidcentral.com/google-pixel-pixel-xl/855985-screen-widget-loading-8-1-boot.html
They describe similar issues. I've also found other, similar observations but with no resolve.
I am on April and have tried a custom kernel. No joy.
Edit: Since I cannot test the calendar widget nor Lightflow in Safe Mode, I don't know if it actually is a system-related issue.
Edit 2: I do see a strange connection with charging, especially with Playstore installations and lags.

snovvman said:
I have not, unfortunately. The Playstore app install has, for the most part, resolved itself, but the hang does return from time to time. Lightflow is still a problem. I wrote the dev but there is no response. The other issue is the Google Calendar agenda widget. It takes 10-20 minutes to load on reboot. Mind you, the month widget works just fine.
Take a look at these threads:
https://forums.androidcentral.com/moto-z-force/803793-calendar-widget-doesnt-load-data.html
https://forums.androidcentral.com/google-pixel-pixel-xl/855985-screen-widget-loading-8-1-boot.html
They describe similar issues. I've also found other, similar observations but with no resolve.
I am on April and have tried a custom kernel. No joy.
Edit: Since I cannot test the calendar widget nor Lightflow in Safe Mode, I don't know if it actually is a system-related issue.
Edit 2: I do see a strange connection with charging, especially with Playstore installations and lags.
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Click to collapse
The only widget I use is the Fit step counter. That has always taken a minute or so to even show up on the home screen after a boot (8.0/8.1) for me. I don't feel it's related to my issue as that has persisted through all software versions I've used so far.
I'm beginning to think the lightflow issue is just that....a lightflow issue and it is affecting notifications, globally. And, it is somehow tied to charging state. I've seen lightflow do some weird crap over the years. I remember a simple gmail update caused lightflow to send my then device (htc tbolt) into constant reboots.

Str0ntium said:
I'm beginning to think the lightflow issue is just that....a lightflow issue and it is affecting notifications, globally. And, it is somehow tied to charging state. I've seen lightflow do some weird crap over the years. I remember a simple gmail update caused lightflow to send my then device (htc tbolt) into constant reboots.
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Click to collapse
Well sir, you are EXACTLY correct. Based on your ideas, I disabled Lightflow and rebooted my phone. All was back to normal. Once I re-enabled LF, the problems came back. Thank you very much for pointing out your observations. I would have not considered LF to be the source of the problem, but it is now so clear. Again, I can't thank you enough (I'll "thank" both of your posts)!
I will try clearing the LF data to see if that solves the problem. I will report back.

snovvman said:
Well sir, you are EXACTLY correct. Based on your ideas, I disabled Lightflow and rebooted my phone. All was back to normal. Once I re-enabled LF, the problems came back. Thank you very much for pointing out your observations. I would have not considered LF to be the source of the problem, but it is now so clear. Again, I can't thank you enough (I'll "thank" both of your posts)!
I will try clearing the LF data to see if that solves the problem. I will report back.
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Click to collapse
Light Manager might be a viable alternative for you if LF doesn't play nice for you. Works great without any lag issues :good:

snovvman said:
Well sir, you are EXACTLY correct. Based on your ideas, I disabled Lightflow and rebooted my phone. All was back to normal. Once I re-enabled LF, the problems came back. Thank you very much for pointing out your observations. I would have not considered LF to be the source of the problem, but it is now so clear. Again, I can't thank you enough (I'll "thank" both of your posts)!
I will try clearing the LF data to see if that solves the problem. I will report back.
Click to expand...
Click to collapse
Well, that's not exactly the news I wanted to hear lol.. I've tried light manager before and didn't like it at all. Light flow is kind of a crucial app for me. I guess I will just charge the device in the off state. Everything works fine until it gets charged overnight.
Now that you've sort-of confirmed light flow as the cause, I wonder if it might have to do with the charge state hooking. Do you have charging/charged profiles set up in light flow? If it's as simple as removing those, I could deal. I'm at work so can't really afford to test it right now.

Str0ntium said:
Well, that's not exactly the news I wanted to hear lol.. I've tried light manager before and didn't like it at all. Light flow is kind of a crucial app for me. I guess I will just charge the device in the off state. Everything works fine until it gets charged overnight.
Now that you've sort-of confirmed light flow as the cause, I wonder if it might have to do with the charge state hooking. Do you have charging/charged profiles set up in light flow? If it's as simple as removing those, I could deal. I'm at work so can't really afford to test it right now.
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I first endured the slowness and made a LF backup. Then 1) I cleared the data and rebooted the phone without launching LF, the phone restarted normally, calendar widget was fine, 2) launched LF and granted notification access, restarted phone, all was well, 3) restored from LF backup, restarted, all is still well and LF launches fine. Corrupted data?
At least I'll know what to do next time. For your similar issue, just make a LF backup, clear data, reboot, restore, and hopefully it resolves the issue for you. Let me know.
Edit: Regarding your question on charge state hooking--I had LF running for many years and on the Pixel 2 XL since new. The problem only surfaced recently. My Pixel 2 is also fine. I would guess that there was bad data somewhere. Like I wrote above, a reset/restore brought everything back as before.

snovvman said:
I first endured the slowness and made a LF backup. Then 1) I cleared the data and rebooted the phone without launching LF, the phone restarted normally, calendar widget was fine, 2) launched LF and granted notification access, restarted phone, all was well, 3) restored from LF backup, restarted, all is still well and LF launches fine. Corrupted data?
At least I'll know what to do next time. For your similar issue, just make a LF backup, clear data, reboot, restore, and hopefully it resolves the issue for you. Let me know.
Edit: Regarding your question on charge state hooking--I had LF running for many years and on the Pixel 2 XL since new. The problem only surfaced recently. My Pixel 2 is also fine. I would guess that there was bad data somewhere. Like I wrote above, a reset/restore brought everything back as before.
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Click to collapse
Yeah, I went through all of that last week. I went from the newest version back to the last known stable (for me) version. I always keep a back up of the settings txt file as well as a TiBu file. My current version (previous stable) was installed from scratch.
Everything was fine for the first two or so weeks on March build. This just started after I applied the libs from the multi-touch fix. I removed that as I had hoped it would be related to the phantom swiping when scrolling (I don't game on the device) but it doesn't seem to be related the swiping. At first I thought that module was causing the issue as it started the day or two after adding it. That's the only change I have really made since setting up the March build. Not sure why it would just start out of the blue when it had been working fine for at least 2 weeks before.
I'll try some things over the next few days. First thing is going to be removing the charging profiles from light flow and see if that makes a difference.
Have you tried hooking up the charger since cleaning your data?
If removing charging profiles doesn't help, I'm going to reflash March build (removing -w from batch file) to both slots, redo twrp, elx kernel, magisk. I may do this anyway, even if removing charging from light flow fixes it.

Str0ntium said:
I'll try some things over the next few days. First thing is going to be removing the charging profiles from light flow and see if that makes a difference.
Have you tried hooking up the charger since cleaning your data?
If removing charging profiles doesn't help, I'm going to reflash March build (removing -w from batch file) to both slots, redo twrp, elx kernel, magisk. I may do this anyway, even if removing charging from light flow fixes it.
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Click to collapse
I have connected/disconnected a generic charger twice and once connected to a PC (slow charge). So far, still all good. The problem began in late/mid March. The April patch did not solve the problem. I am using Magisk. Stock/ElementalX made no difference. I will see if the problem resurfaces.
The likely cause that there are code issues with LF. I had LF slow down regardless of charger connection so I'm curious to know if removing the charging hooks help. I'm on the latest version.
Just curious--what not go to the April patch?

snovvman said:
I have connected/disconnected a generic charger twice and once connected to a PC (slow charge). So far, still all good. The problem began in late/mid March. The April patch did not solve the problem. I am using Magisk. Stock/ElementalX made no difference. I will see if the problem resurfaces.
The likely cause that there are code issues with LF. I had LF slow down regardless of charger connection so I'm curious to know if removing the charging hooks help. I'm on the latest version.
Just curious--what not go to the April patch?
Click to expand...
Click to collapse
I'm an "if it ain't broke" kinda guy. Everything except the phantom swipes has been perfect on March build. At this point I'm convinced the swiping issue is due to LG and therefore nothing to be done about it. I'm getting too old to flash a new ROM every week like I used to

Str0ntium said:
I'm an "if it ain't broke" kinda guy. Everything except the phantom swipes has been perfect on March build. At this point I'm convinced the swiping issue is due to LG and therefore nothing to be done about it. I'm getting too old to flash a new ROM every week like I used to
Click to expand...
Click to collapse
Gotcha! Since my last post, I have connected/disconnected charger five times. Each time with several minutes of wait time in between. I have also tested functionality while the charger is plugged in. All still good.
One side note, I have noticed, with many phones, that strange and undesirable things happen when you connect the charge while the phone is mid-boot. In my situation, the LF problem may have surfaced because of that.

snovvman said:
Gotcha! Since my last post, I have connected/disconnected charger five times. Each time with several minutes of wait time in between. I have also tested functionality while the charger is plugged in. All still good.
One side note, I have noticed, with many phones, that strange and undesirable things happen when you connect the charge while the phone is mid-boot. In my situation, the LF problem may have surfaced because of that.
Click to expand...
Click to collapse
Well for me I was just charging normally. Hope it holds up for you. If so I'll do a clean install again and setup from scratch.

Try clearing excess text messages and cache for apps. A friend of mine had thousands of text messages and social media buildup, and the phone got very slow and buggy, especially the camera app. After deleting thousands of texts, switching to Textra, clearing the app cache for frequently used apps, the phone is back to very fast again.

Delayed Notifications In Android P

First off, I disabled adaptive battery in Android P. Ever since the upgrade from 8 to 9, I noticed that notifications are right around 5 minutes late. I have a couple time-sensitive apps that I need notifications right away. Gmail and another app for my home automation. In Android 8, the were flawless. However, ever since going to 9, not so much.
I also noticed that when I delete messages in the gmail app for gmail and an IMAP email server I have it does nothing with the messages on the server. I login to webmail from a computer and the messages are still in the Inbox.
Anyone have any ideas? I am going to try a wipe again to see if it resolves the issues, but I am out of ideas. I had the above issues in Android 9 beta as well. I would downgrade and it fixed them.

I have the same thing and it turns out it is a common issue with Pie. I have not found a solution yet. I have read all kinds of things people have tried and nothing seems to help. Sorry that I can't be more positive. Hopefully Google will figure something out and fix in an update.
Here is a two page post I started about the issue but there are also many others online describing the same thing:
https://forums.androidcentral.com/android-pie/904647-notifications-delayed-stopped.html

My thought is that the delayed notifications are due to Android Pies implementation of adaptive battery. Maybe try excluding the apps you want to receive notifications from in a timely manner?
Sent from my Pixel 2 XL using XDA Labs

You don't happen to have data saver in the quick tiles turned on by accident do you? That does prevent notifications from getting pushed. Both my parents had this on and a bunch of notifications came through after turning it off. I made sure to remove it from even being an available option.
Sent from my Pixel 2 XL using Tapatalk

been fighting with this issue as well, but it only seems to be gmail, and a couple other apps, my sms notifications seem to come through fine, at least as far as I can tell. I've turned off adaptive battery etc, nothing seems to make a difference. sometimes i can turn my screen on and all the notifications will come flooding in, other times they come through 10ish min later.

yes i have also these issue
and i opened thread on these https://forum.xda-developers.com/pixel-2-xl/help/gmail-sync-problems-pie-t3839357
also i tried many apps, but instead of gmail but yet i didn't find any solution

Triscuit said:
My thought is that the delayed notifications are due to Android Pies implementation of adaptive battery. Maybe try excluding the apps you want to receive notifications from in a timely manner?
Sent from my Pixel 2 XL using XDA Labs
Click to expand...
Click to collapse
Thanks for the suggestion but that is one of the first things I tried. No difference.
EeZeEpEe said:
You don't happen to have data saver in the quick tiles turned on by accident do you? That does prevent notifications from getting pushed.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
Made sure it was off early on. No change.
The best way to describe my issue is that once the screen times out and has been off for at least about 5 minutes, notification sounds are delayed. It is sort of like the phone goes into a deeper sleep or something and then the problem arises. As soon as I use my fingerprint to wake the phone, all notifications blast through.
The delay can vary. Sometimes it is only 15 minutes or so, but often it is much longer. It is almost like once in a while an app wants to call home or something and to do so wakes up the phone just enough to allow some notifications through.
There also seem to be some issues with individual apps and notifications that may be fixed when a developer updates their app for Pie. For example, most apps notify immediately when the screen is on or within that first 5 minutes or so after the screen goes off. But since installing Pie, Kuna always has a delay of 5 to 10 minutes before notifying. Kuna does this 100% of the time. In fact if I have the phone awake, looking at the screen when walking out the front door, when the motion sensor is triggered, immediately there is a notification icon. But the sound notification is always delayed. This seems like an issue with Kuna and they are well know for being very slow with updates and fixes but eventually they do fix things. But the notification sound delays described in this thread do indeed seem like a system issue with Pie. Hopefully enough people will have the issue that Google will figure it out and fix.

I am having same issues after updating to Android P. At first, notifications came late about 5 min, but then they started to vary some coming in 15-30 minutes later. Can't figure out what is causing the time difference but either way I can't find a fix. I spoke with Google support and they had no fix as well.

sammys8 said:
I spoke with Google support and they had no fix as well.
Click to expand...
Click to collapse
Did Google give you any indication they were aware of the issue and trying to fix?

Will_T said:
Did Google give you any indication they were aware of the issue and trying to fix?
Click to expand...
Click to collapse
Nope, they didn't mention anything about existing issues or being aware of the issue.

Any one found any solutions or fixes? I feel like my notifications are becoming even more delayed now and have also realized I'm not getting a lot of various notifications at all (through many different apps).

I am guessing you all are aware of this, and have tried, however I just found this recently and thought I would share for anyone that doesn't know.... Settings > Apps and Notifications > Advanced > Special App Access ..... Lots of options here with one of them being battery optimization for individual apps. After I upgraded to P, hardly any of my frequently used apps were given full battery use. Haven't played with all the other options there, however just granting apps full battery seemed to help me out.

3yoders said:
I am guessing you all are aware of this, and have tried, however I just found this recently and thought I would share for anyone that doesn't know.... Settings > Apps and Notifications > Advanced > Special App Access ..... Lots of options here with one of them being battery optimization for individual apps. After I upgraded to P, hardly any of my frequently used apps were given full battery use. Haven't played with all the other options there, however just granting apps full battery seemed to help me out.
Click to expand...
Click to collapse
Just updated some settings, now we wait and see if these buried settings fix my delays.. here's to hoping! :good:

3yoders said:
I am guessing you all are aware of this, and have tried, however I just found this recently and thought I would share for anyone that doesn't know.... Settings > Apps and Notifications > Advanced > Special App Access ..... Lots of options here with one of them being battery optimization for individual apps. After I upgraded to P, hardly any of my frequently used apps were given full battery use. Haven't played with all the other options there, however just granting apps full battery seemed to help me out.
Click to expand...
Click to collapse
One of the first things I tried was giving full useage, (no battery optimization) for all apps that I want notifications from. Did not help. Many other apps are still being optimized. I thought I had previously found a way to turn off all battery optimization but because I do have many apps in that list that are being optimized, I obviously did not. Right now I can't find a global setting to turn off battery optimization even though I thought I did before?

So I noticed this morning, that the main app/notification that's super delayed (5-10min after the event should have triggered) it doesn't happen when my phone is plugged in or i have the screen on in my hand. Even after going through all the battery save features and making sure this app is exempt from them, it still happens if the screen is off, or my phone is off the charger. super annoying. wish there was a fix for this already!

pvtjoker42 said:
So I noticed this morning, that the main app/notification that's super delayed (5-10min after the event should have triggered) it doesn't happen when my phone is plugged in or i have the screen on in my hand. Even after going through all the battery save features and making sure this app is exempt from them, it still happens if the screen is off, or my phone is off the charger. super annoying. wish there was a fix for this already!
Click to expand...
Click to collapse
Verizon sent me a replacement because of this problem. I was apprehensive, but got a very nice re-furb. Still have the same problem, but I got a phone that is indicated as Verizon on the LG site. In developer mode, the bootloader unlock button works. I guess everything isn't bad. I sure hope Google straightens this out soon.

pvtjoker42 said:
So I noticed this morning, that the main app/notification that's super delayed (5-10min after the event should have triggered) it doesn't happen when my phone is plugged in or i have the screen on in my hand.
Click to expand...
Click to collapse
This happens only with Gmail on my phone - WhatsApp and Messages send instant notifications. Messages isn't optimized, the other apps are.
I can live with that, no big deal. Perhaps disabling battery optimization for Gmail would fix this, though.

Interesting note: I was talking to YouMail support today about something else but I asked about an issue where I get an email and transcript of a new voicemail but when I go to the YouMail app that voicemail is not shown until I drag down from the top of the screen to refresh the list. Support told me they are aware of this but can not do anything because it is a problem with the "latest Android version causing delay". So it is becoming a more widely known issue and hopefully Google will fix soon.

Thanks for all the feedback. Speaking of delay, I think I have tried just about every fix here and then some and still no luck. Wiping the phone did nothing as well. At this point, I would almost like to revert back to v8 to get this fixed.

I tried this supposed fix, (reply #51). https://forums.androidcentral.com/a...ifications-delayed-stopped-3.html#post6355714
No idea if it worked for me as when you restart the phone you need to do it again and less than 30 minutes after I went through the steps, my Pixel2 got the October update for Pie and required a restart!

Notification bar pull down stutter after unlocking phone

I searched forum for similiar issues but could not found anything(though there are some reddit topics).
When I wake the phone with power button or fingerprint sensor, and try to pull down notification bar, there is a stutter/lag lasts 1-2 seconds. Lets say you pull up for app drawer there is nothing but pull down and there it is.
Also wallpaper seems to affect it a little bit but it might be a placebo effect as it still stutters(light the way wallpaper seems to solve it a little bit.).
It started after Android 10 update and I even tried to clean flashing whole rom but result is same and I do not have any UI altering apps.
It seems like a slow wake up issue and may be playing with sleep frequencies might solve it but I did not root so it is not a option for me.
Is anyone else facing this ? Vanilla or custom roms/kernels ?

Yep, I have the same issue. It's pretty annoying, but I did get it to stop, for me at least it seems the new gesture navigation is causing this because I can't get it to stutter while using the 2 or 3 button navigation methods. I've had this happening since I updated to Android 10 (stable release, not beta) but after a while it just fixed itself, unfortunately my phone ran out of battery yesterday and today after I booted it up it came back to haunt me :/

Alright I got it to stop, disabling both "New notification" and "Double-tap to check phone" did it for me. Hopefully this helps.

Scythe said:
I searched forum for similiar issues but could not found anything(though there are some reddit topics).
When I wake the phone with power button or fingerprint sensor, and try to pull down notification bar, there is a stutter/lag lasts 1-2 seconds. Lets say you pull up for app drawer there is nothing but pull down and there it is.
Also wallpaper seems to affect it a little bit but it might be a placebo effect as it still stutters(light the way wallpaper seems to solve it a little bit.).
It started after Android 10 update and I even tried to clean flashing whole rom but result is same and I do not have any UI altering apps.
It seems like a slow wake up issue and may be playing with sleep frequencies might solve it but I did not root so it is not a option for me.
Is anyone else facing this ? Vanilla or custom roms/kernels ?
Click to expand...
Click to collapse
I have exactly the same issue on my Pixel 2XL, manage to fix it by disabling Google Feed on the left of the main home screen. Try it let me know if it works.
Update 1: disabling google feed doesn't work. I try to switch back to 3 button navigation and the issue gone.

I do not know how but now it is smooth everytime I try to wake phone and double tap+alwayson display is enabled. Also I tried all wallpapers and it works without any stutter.
Probably monthly updates fixed it, idk.

Slow app opening when tapping notifications

Almost every Samsung android phone I've own has this problem after using it for a period of time. I've had the note 10+ since launch and the dreaded issue has return.
For some apps, I would tap the notification for the app. It would take a few minutes before the app will open.
Anyone has this issue?
I've had it on my note8, Note9 and now the note10+.
Hard reset will fix it but I don't want to reset and start again..
Continuation from note 8 thread: https://forum.xda-developers.com/galaxy-note-8/help/app-lag-clicking-notification-t3781356/page2

I don't have this issue.
Some people prefer to perform an hard reset as soon as they got the phone, before starting using it for the first time ; maybe they had some issues like yours at first, then wanted to avoid them.
Personally I didn't got any at first run.

That's odd, I have not experienced what you say in any of my samsung devices dating from my beloved S3 to this note10+

Yes..i am so confuse why it happens.. When the phone is new or just had a hard reset.. I don't have the issue.. Over time I always get it.

I also have this issue and it's incredibly annoying. Apps will take a full minute to open after being tapped on from the notifications banner. I too have had all but one Note product since the original (skipped the 2nd gen), but this is the first I can recall this issue happening. I'm also experiencing the issue of Google Play store apps getting stuck at 99% or 100% and not installing for 10 minutes or longer.

Is it all apps or certain apps only? Are you running stock or rooted? Exynos or Snapdragon? I haven't seen this issue shown up in a while, but have had it happen on Android devices in general in the past.

aarick said:
Almost every Samsung android phone I've own has this problem after using it for a period of time. I've had the note 10+ since launch and the dreaded issue has return.
For some apps, I would tap the notification for the app. It would take a few minutes before the app will open.
Anyone has this issue?
I've had it on my note8, Note9 and now the note10+.
Hard reset will fix it but I don't want to reset and start again..
Continuation from note 8 thread: https://forum.xda-developers.com/galaxy-note-8/help/app-lag-clicking-notification-t3781356/page2
Click to expand...
Click to collapse
Aaron J said:
I also have this issue and it's incredibly annoying. Apps will take a full minute to open after being tapped on from the notifications banner. I too have had all but one Note product since the original (skipped the 2nd gen), but this is the first I can recall this issue happening. I'm also experiencing the issue of Google Play store apps getting stuck at 99% or 100% and not installing for 10 minutes or longer.
Click to expand...
Click to collapse
I don't have this issue, but as @dhorgas, more info would be helpful if it's a problem that can easily be fixed.
Two have the issue here, It could be a common app both of you are running.

lennie said:
I don't have this issue, but as @dhorgas, more info would be helpful if it's a problem that can easily be fixed.
Two have the issue here, It could be a common app both of you are running.
Click to expand...
Click to collapse
It seems to be related to pendingIntent type notifications as if I tap a notifications that is a collapsed version of all the notifications, the app will load instantly. Have a look at this video I created:
(I didn’t include the tap showing on screen unfortunately, will attempt to do another video next time)
Initial tap was when the notification is collapsed for reolink and that will just open up the app. Happens instantly.
I close the app, expanded the notification and click on specific notification
The app doesn’t open until 8 minutes + later towards the end of the video.
Issue is happening across a fair few apps so I doubt it's common app..
I also have the issue of delayed notifications as discussed here:
https://eu.community.samsung.com/t5...ue-affecting-all-range-of-Samsung/td-p/738070

dhorgas said:
Is it all apps or certain apps only? Are you running stock or rooted? Exynos or Snapdragon? I haven't seen this issue shown up in a while, but have had it happen on Android devices in general in the past.
Click to expand...
Click to collapse
Stock on exynos

Aaron J said:
I also have this issue and it's incredibly annoying. Apps will take a full minute to open after being tapped on from the notifications banner. I too have had all but one Note product since the original (skipped the 2nd gen), but this is the first I can recall this issue happening. I'm also experiencing the issue of Google Play store apps getting stuck at 99% or 100% and not installing for 10 minutes or longer.
Click to expand...
Click to collapse
Have the same issue with the play store. One way to speed it up is to force close play store... Then reopen it..
The app will redownload and should install this time.. Not always..

Quick update: Got fed up and did a factory reset and restored everything. Everything's working fine now. Obviously that's a last resort, but so far it's the only solution I've seen.

aarick said:
It seems to be related to pendingIntent type notifications as if I tap a notifications that is a collapsed version of all the notifications, the app will load instantly. Have a look at this video I created:
(I didn’t include the tap showing on screen unfortunately, will attempt to do another video next time)
Initial tap was when the notification is collapsed for reolink and that will just open up the app. Happens instantly.
I close the app, expanded the notification and click on specific notification
The app doesn’t open until 8 minutes + later towards the end of the video.
Issue is happening across a fair few apps so I doubt it's common app..
I also have the issue of delayed notifications as discussed here:
https://eu.community.samsung.com/t5...ue-affecting-all-range-of-Samsung/td-p/738070
Click to expand...
Click to collapse
Wow. That would drive me crazy. Try backup, hard reset and restore like @Aaron J did and see if that fixes the issue.

lennie said:
Wow. That would drive me crazy. Try backup, hard reset and restore like @Aaron J did and see if that fixes the issue.
Click to expand...
Click to collapse
Yes.. It will fix it.. But it's temporary..
The issue won't happen straight away.. It takes a few weeks/months and will return.. It has happened to me from the note 8, note 9 and now note 10+.
Initially everything will be good and fast.. Then eventually issue will return..
So need to try to get to the root of it..

Aaron J said:
Quick update: Got fed up and did a factory reset and restored everything. Everything's working fine now. Obviously that's a last resort, but so far it's the only solution I've seen.
Click to expand...
Click to collapse
Hope the issue doesn't return for you.. It always returns for me..

I have been dealing with 3 issues in my phone:
-delayed notifications
-slow app opening when tapping notifications
-apps installation through play store delayed after download
So recent development, I have been following this thread on Samsung forums regarding delayed notifications
https://eu.community.samsung.com/t5...ting-all-range-of-Samsung/td-p/738070/page/28
Have tried all the fixes which has given minor relief..
But the last suggestion to disable dynamic lock on windows 10 seems to have fixed the issue for me. Early days but all 3 issues have not reoccured yet today.. Usually my Samsung reminders will not show until I reboot. But today been good so far.
Apps install instantly and apps open from notifications straight away..
Will report back in a few days if anything changes..

aarick said:
I have been dealing with 3 issues in my phone:
-delayed notifications
-slow app opening when tapping notifications
-apps installation through play store delayed after download
So recent development, I have been following this thread on Samsung forums regarding delayed notifications
https://eu.community.samsung.com/t5...ting-all-range-of-Samsung/td-p/738070/page/28
Have tried all the fixes which has given minor relief..
But the last suggestion to disable dynamic lock on windows 10 seems to have fixed the issue for me. Early days but all 3 issues have not reoccured yet today.. Usually my Samsung reminders will not show until I reboot. But today been good so far.
Apps install instantly and apps open from notifications straight away..
Will report back in a few days if anything changes..
Click to expand...
Click to collapse
So ... did this do it? I've been dealing with this for a LONG time. My Note 8 started this crap after the 9 'upgrade', motivated me to get a new Note 10. A few months later, the SAME exact problem is cropping up.
Slow notification reactions, stuck installs, notifications coming in repeatedly, notifications coming in late all at once.
If this isn't resolved soon, my next phone will definitely not be a Samsung.

nokster said:
So ... did this do it? I've been dealing with this for a LONG time. My Note 8 started this crap after the 9 'upgrade', motivated me to get a new Note 10. A few months later, the SAME exact problem is cropping up.
Slow notification reactions, stuck installs, notifications coming in repeatedly, notifications coming in late all at once.
If this isn't resolved soon, my next phone will definitely not be a Samsung.
Click to expand...
Click to collapse
Yes, my issue is gone now. Try removing windows dynamic lock and unpair your phone from your laptop if you have this setup.
If not, try slowly removing other Bluetooth devices.
For me, a Bluetooth yeelock also caused the delay to return..I have to reboot each time after using the lock to get it back to normal.
I also think a plantronics desktop headset was also causing the issue as I was getting the lag everytime I reach home since removing windows dynamic lock. I have since unplugged it and unpaired. So far been good for a few weeks now.
I heard this issue wasn't specific to Samsung but might be an Android issue..i think it started with Android 9.0 as you have mentioned as I never had this issue when I was using the note 8 before one ui.. But note 9 and 10+ both had issues..
Similar issue mentioned on pixel phone support:
https://support.google.com/pixelphone/thread/5024453?hl=en

aarick said:
Yes, my issue is gone now. Try removing windows dynamic lock and unpair your phone from your laptop if you have this setup.
If not, try slowly removing other Bluetooth devices.
For me, a Bluetooth yeelock also caused the delay to return..I have to reboot each time after using the lock to get it back to normal.
I also think a plantronics desktop headset was also causing the issue as I was getting the lag everytime I reach home since removing windows dynamic lock. I have since unplugged it and unpaired. So far been good for a few weeks now.
I heard this issue wasn't specific to Samsung but might be an Android issue..i think it started with Android 9.0 as you have mentioned as I never had this issue when I was using the note 8 before one ui.. But note 9 and 10+ both had issues..
Similar issue mentioned on pixel phone support:
https://support.google.com/pixelphone/thread/5024453?hl=en
Click to expand...
Click to collapse
I don't have Dynamic Lock set up, nor do any of my computers have bluetooth enabled. BUT I do have this cursed Plantronics PLT W8200 series headset that has been nothing but buggy since I got it. Not surprised if this is the cause. I just unpaired it - fingers crossed.
I hope that's it because otherwise, it's just 2 other pretty crucial devices I have paired.

nokster said:
I don't have Dynamic Lock set up, nor do any of my computers have bluetooth enabled. BUT I do have this cursed Plantronics PLT W8200 series headset that has been nothing but buggy since I got it. Not surprised if this is the cause. I just unpaired it - fingers crossed.
I hope that's it because otherwise, it's just 2 other pretty crucial devices I have paired.
Click to expand...
Click to collapse
Would be good to hear if this fixes your issue. Please make sure you reboot after unpairing too and if possible completely unplug the plantronics as I think it might try to connect to your phone still (but fail) and potentially still bring the issue back as my yeelock doesn't even show up as a paired device, the app just sends msg to it via bluetooth and I still have delays after using it.
Keep us updated...

aarick said:
Would be good to hear if this fixes your issue. Please make sure you reboot after unpairing too and if possible completely unplug the plantronics as I think it might try to connect to your phone still (but fail) and potentially still bring the issue back as my yeelock doesn't even show up as a paired device, the app just sends msg to it via bluetooth and I still have delays after using it.
Keep us updated...
Click to expand...
Click to collapse
So after the weekend of having the Plantronics headset un-paired, it *seems* better. Hopefully it stays that way.

Question Gmail syncing / notifications problem

I have a problem with Gmail not syncing properly.
From time to time, it will stop notifying me of new emails.
When going in the app, the mails will come in, without the need to swipe down to refresh.
It has been a couple of days like this now...
Pretty annoying.
And to state the obvious...
Yes, I have enabled syncing.
And YES battery optimization for Gmail is disabled...
Not even the intelligent thingy.
Anybody had the same?
Any ideas?
Have read al lot of topics about it, but no clear solutions...

To my knowledge, Gmail has been having these issues for at least a few weeks now, it's not only you.

Bunecarera said:
I have a problem with Gmail not syncing properly.
From time to time, it will stop notifying me of new emails.
When going in the app, the mails will come in, without the need to swipe down to refresh.
It has been a couple of days like this now...
Pretty annoying.
And to state the obvious...
Yes, I have enabled syncing.
And YES battery optimization for Gmail is disabled...
Not even the intelligent thingy.
Anybody had the same?
Any ideas?
Have read al lot of topics about it, but no clear solutions...
Click to expand...
Click to collapse
Had the issue all last week (Ireland). The last 2 days it's working fine. No changes made to phone.

Mmm, strange.
My girlfriend does not have any issues on her old Oneplus 5.
So completely random?

Bunecarera said:
Mmm, strange.
My girlfriend does not have any issues on her old Oneplus 5.
So completely random?
Click to expand...
Click to collapse
Same as that, the Mrs has OnePlus 5 and no issues at all with Gmail notifications.

Disable doze and problem is fixed!

RicardoDimm said:
Disable doze and problem is fixed!
Click to expand...
Click to collapse
It is disabled

Same here... Had that same issue with my 7 Pro.

RicardoDimm said:
Disable doze and problem is fixed!
Click to expand...
Click to collapse
Via adb?
Don't want to do that every reboot...

No changes are needed, it is working off and on for people randomly. It stopped working for me for 4 days, then 2 days ago was fine again.

I've done manual syncing for a long time.
Sick of unreliable busy things running around in the background.
For the last couple months I've kept Google play Services* disabled unless I sync Gmail, I rarely use Gmaps or Playstore so I don't care.
My stock Note 10+'s battery usage is down to >7% an hour SOT using the Brave browser constantly. That means not only less charging but less strain on the battery out of the gate. I don't consider Google to be a trusted vendor so limiting it's access is a good thing.
*keeps Find my Device from autostarting it's bloody self as well.

I've had this issue with Android for quite some time now. With my S21 Ultra, all I had to do was disable doze with adb commands and never restart my phone. It was so nice getting email notifications at the same time as my iPhone.
I thought I could do the same with the OP9 Pro, but this isn't the case. I too have turned optimisation off, turned doze off, and keep the app open in the background - to no avail.
It's so sad to receive a notification on my iPhone that is fairly important to my business, only to get it anywhere between 10 minutes to several hours later on what is supposed to be my business cell. I'm unfortunately outside of the return window with the phone, otherwise this frustration would've lead me to another iPhone.
So insanely frustrating. I don't think I'll be carrying an Android phone much longer if this persists and the iPhone 13 is as good as I'm hoping it is.

I removed universal gms magisk module and somehow it worked again

AhsanU said:
I've had this issue with Android for quite some time now. With my S21 Ultra, all I had to do was disable doze with adb commands and never restart my phone. It was so nice getting email notifications at the same time as my iPhone.
I thought I could do the same with the OP9 Pro, but this isn't the case. I too have turned optimisation off, turned doze off, and keep the app open in the background - to no avail.
It's so sad to receive a notification on my iPhone that is fairly important to my business, only to get it anywhere between 10 minutes to several hours later on what is supposed to be my business cell. I'm unfortunately outside of the return window with the phone, otherwise this frustration would've lead me to another iPhone.
So insanely frustrating. I don't think I'll be carrying an Android phone much longer if this persists and the iPhone 13 is as good as I'm hoping it is.
Click to expand...
Click to collapse
Activate Developer options>Standby apps, all buckets should show as active, if not power management is active!
Power management will cause erratic behavior.
You need to be up to speed to use an Android effectively.
iphone? So blah, pastels and made in CCP sweat shops
NO☣☣

So many people (including me) already mentioned this issue with Gmail notifications. It is definitely a bug and OnePlus is aware about it. Not sure when it will be corrected...
Waiting for an update, I recommend to use "Spark" app which is working good for all my mailboxes.

MomZo_Yipiyo said:
So many people (including me) already mentioned this issue with Gmail notifications. It is definitely a bug and OnePlus is aware about it. Not sure when it will be corrected...
Waiting for an update, I recommend to use "Spark" app which is working good for all my mailboxes.
Click to expand...
Click to collapse
The beautiful thing about Android is there's almost always a 3rd party work around.
You're not locked in.
Glitches aren't uncommon, but most are small ones. Finding work arounds is a part of Android ownership... use it's flexibility to your advantage.

I thought I was the only one who had this problem.

a reboot fixes it for me for a couple of days, then its back to not showing any notifications.

brugernavn said:
a reboot fixes it for me for a couple of days, then its back to not showing any notifications.
Click to expand...
Click to collapse
A reboot a day seems reasonable...

Maybe 11.2.6.6 update fixed this problem, I don't have the problem for now.