Develop Bugs

[Q] Bug with Lock Screen G2 Overclock

Hey there every one. When I am unlocking my phone I notice that it will flash the lock screen and then disappear and then immediately re appear. When you try to lock the phone sometimes it wont lock and the buttons will stay lit and will display the lock screen but the display wont sleep unless it times out.
This happens on all ROM's that I flash except CyanogenMod
I used both of the over clock methods but the results are the same.
Please Advise
macfan74318

macfan74318 said:
Hey there every one. When I am unlocking my phone I notice that it will flash the lock screen and then disappear and then immediately re appear. When you try to lock the phone sometimes it wont lock and the buttons will stay lit and will display the lock screen but the display wont sleep unless it times out.
This happens on all ROM's that I flash except CyanogenMod
I used both of the over clock methods but the results are the same.
Please Advise
macfan74318
Click to expand...
Click to collapse
Yeah, it sucks. Theres no real way around this but disabling the lock screen helps it from happening less frequently. But then you end up draining the battery & others by the screen coming on easily by trackpad, volume keys, and power button. Its a lose/lose situation really...

sino8r said:
Yeah, it sucks. Theres no real way around this but disabling the lock screen helps it from happening less frequently. But then you end up draining the battery & others by the screen coming on easily by trackpad, volume keys, and power button. Its a lose/lose situation really...
Click to expand...
Click to collapse
I bumped my minimum clock speed to 368 MHz, and I don't have this problem anymore. YMMV

seancneal said:
I bumped my minimum clock speed to 368 MHz, and I don't have this problem anymore. YMMV
Click to expand...
Click to collapse
Still happens to me when I try that. It occurs when you press the power button twice in succession.

Hi there,
anything new on this topic? I'm currently experiencing this annoying problem as described.
I've already tried to set the minimum clock to 368 Mhz but the bug still exists. Even setting CPU to standard clock (Max/Min @800) didn't solve the problem.
Is it possible that the reason is located already inside the overclocking kernel?
Greets
dktnecro

Generally if you're overclocking and you have lockscreen issues that are not present @ stock speeds, then it sounds to me like the overclock is too much and your system probably isn't stable.
Based on my experience overclocking computers, things can very well appear stable but if you do stress testing (8+ hours straight) things often crop up and show you that it is in fact not stable. This sounds like one of those things. And that's not good. Who knows what other corruption could occur during your use at that speed? I had the same lockscreen issues myself, and once I realized it was due to overclocking too much I ended up solving another issue I had where half of the calls I received were garbled to the person on the other end. No more lockscreen issues or garbled calls since backing off the o/c a bit.
If the issue doesn't happen at stock speeds then maybe it's just the kernel, and hopefully that isn't putting you at risk of any kind of corruption, either.
Keep in mind I really can't be 100% if overclocking will cause corruption on a phone, but based on a lot of time spend overclocking pc's I would have to guess that it can. I'm surprised that this isn't brought up more often on device forums.

[REQUEST] simple app: Help with overheat problem

Hello,
I need a simple app to help with an overheat problem on my EVO.
Let me recap the problem simply, when the phone gets too warm it will shut down and vibrate five times and then blink the green LED. The phone then cannot be turned back on until the battery has cooled down.
I have found a half solution, if my phone is in Airplane mode then it will not shut down even when it is warm. So, to avoid shutdown, I need a simple widget. The widget should be 2x1. On the left side, a simple battery temp monitor. On the right side, an airplane icon to let me know if the phone is in airplane mode or not.
What I need the app to do is to automatically switch the phone to airplane mode if the the phone gets above a user designated temperature. The only exception to the automatic airplane mode should be if the phone is in a current call. Seems like the phone will let me finish a call before shutting down due to heat. Hopefully the app can throw the phone into airplane mode immediately when the call ends. But if that exception is too difficult, the primary functionality would still be worth it.
This is my first app request, so I don't know if I'm being specific enough. I also know that other people can use this app. Hopefully someone out there can help us all out.
Thanks

There is an app called tasker that should be able to do that for you. At least untill someone can build an app for you.
Sent from my PC36100 using XDA App

Not sure what your doing to over heat the phone, but I would try to fix the problem instead of usong a work around. It sounds like you have an inefficient kernel or its too far ovrrclocked. I'm thinking continual use in this overheated state will cause unrepairable damage to your phone.

Just looked at Tasker, from what I can tell it does not have Temperature as an event.
And the problem cause is not my kernel, from what I can tell. I've tried a few different kernels on a couple different mods. I've tried underclocking and under volting. Nothing seems to help. From what I've read, I might have a faulty sensor.

I had a hell of a time with cm7 and the jit compiler. Poor battery life and running warm even when browsing the web. Not sure what your running but it may be as easy as tapping a checkbox.

siris420 said:
Not sure what your doing to over heat the phone, but I would try to fix the problem instead of usong a work around. It sounds like you have an inefficient kernel or its too far ovrrclocked. I'm thinking continual use in this overheated state will cause unrepairable damage to your phone.
Click to expand...
Click to collapse
It's a hardware cpu sensor calibration issue, according to Sprint tech Lokifish Mars. Search for my thread in Evo General.
I avoid shutdowns by keeping battery temp < 39°C.

mine overheated when i was charging and using hotspot/tether, somehow after i wiped my sd card and everything else and installed the rom again it never overheated again.
somehow the more apps get installed the more the chanse some of them be are gonna be running in the backgroung, who knows...

omenovi said:
mine overheated when i was charging and using hotspot/tether, somehow after i wiped my sd card and everything else and installed the rom again it never overheated again.
somehow the more apps get installed the more the chanse some of them be are gonna be running in the backgroung, who knows...
Click to expand...
Click to collapse
Some phones overheat and shutdown regardless of installed apps, rom, or kernel. My Evo consistently shutsdown at 39°C, even when running bare aosp w/zero apps installed.
It's only an issue for me when playing games, using the phone in high ambient temps, and flashing mods. Keeping the battery & cpu cool with a fan or ac vent is the only way I can flash mods or roms.

Elixir is a free app on the market, you can make customizable widgets (1x1 up to 4x1), one for temp, the other to toggle airplane mode.
I use it to monitor temp, battery, cpu freq, and cpu %, and to keep an eye on ram.
Works well.

[INFO]Improve battery life when idle

Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!

I have autorotation turned on but not the face orientation sensing. I haven't noticed a significant battery loss, at 19 hours with 10 left according to battery spy, but I'll give this a try and see if it increases it any.

i'll give it a shot. i was wondering how at work it would drain 2-4% an hour but at home with a crappy signal i'd only lose 6% all night.
at work it's in my pocket and at home it's stationary.

madsquabbles said:
i'll give it a shot. i was wondering how at work it would drain 2-4% an hour but at home with a crappy signal i'd only lose 6% all night.
at work it's in my pocket and at home it's stationary.
Click to expand...
Click to collapse
I have noticed Google Talk drains batteries when your signed in. By default your phone will sign in. If you don't use TALK, sign-out of the app and you will see increased battery life. Your wont ping the internet as much which saves batteries.

Thanks viperboy I took your suggestion and so far it seems to be helping.

I haven't tried that app yet, however I have definitely noticed an improvement in battery life by disabling auto rotation. Thanks for the info.
THIS NOTE 2 IS SENT FROM A GALAXY WHERE SAMSUNG SPRINTS TO THE TOP, AND JELLY BEANS EAT APPLES!!!!

after a bit of troubleshooting i found that battery monitor widget pro was the cause of my drain. after removing it i went from 2 to 3% an hour to 3% overnight. this really sucks as i love the info bmw colleects. this is the only device i have that suffers drain from the app.

Thanks for the info. I have been losing % 15 battery every night while I'm asleep and was wondering why
...from a Galaxy Note II

-viperboy- said:
Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!
Click to expand...
Click to collapse
Thanks for the suggestions. I have heard so much about the great battery life, but that has not been my experience. I had a Note 1 and I had no problems. With Note 2, the battery drains to about 1/4 after about 7 hours with limited use. I have turned off auto rotation, lowered the screen brightness, changed auto check settings for email, and don't see much difference. In addition, it seems a shame that I should have to figure out ways to use fewer functions to make battery last for phone calls, since I never had to do that before. Any ideas?

Thank you for this info. I consistently get a full days charge of of my phone but was pretty clueless when it came to what was draining my battery. I've used the rotation lock app and will report my results to see if I get even more remaining battery each day.
Sent from my SPH-L900 using xda app-developers app

Thanks for the helpful advice Viperboy! I've definitely been having wake lock issues with my phone. Hopefully these apps will help me eliminate the problems.

kat3k said:
Thanks for the suggestions. I have heard so much about the great battery life, but that has not been my experience. I had a Note 1 and I had no problems. With Note 2, the battery drains to about 1/4 after about 7 hours with limited use. I have turned off auto rotation, lowered the screen brightness, changed auto check settings for email, and don't see much difference. In addition, it seems a shame that I should have to figure out ways to use fewer functions to make battery last for phone calls, since I never had to do that before. Any ideas?
Click to expand...
Click to collapse
As viperboy mentioned, BetterBatteryStats is your friend. It really will help you figure out why your phone isn't sleeping like it should. It definitely takes some time to monitor and figure out what the readings mean to help point you to the apps or settings that're affecting your battery, but well worth it. I also like having a better understanding of how things work on my phone.

i did a double check on battery monitor widget pro and it started draining my phone again. as soon as i uninstalled it everything was fine again. this is with both cleanrom and blazer. i'll just wait til official support comes and try it again.

-viperboy- said:
Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!
Click to expand...
Click to collapse
Have you tried the Perseus kernel? I hear the battery life is improved with it. So may be it doesn't have the rotate issue.

I've been using cpu sleeper and I easily get about 30 hours. Looks like the new apk fixed quad core. So when the phone is off it only uses one core and shuts down the other three and lights them back up when you need them.
Sent from my SPH-L900 using xda premium

ZenInsight said:
Have you tried the Perseus kernel? I hear the battery life is improved with it. So may be it doesn't have the rotate issue.
Click to expand...
Click to collapse
I'm on it now, but I haven't looked to see if it fixed the auto rotation bug yet,
rudyrude432 said:
I've been using cpu sleeper and I easily get about 30 hours. Looks like the new apk fixed quad core. So when the phone is off it only uses one core and shuts down the other three and lights them back up when you need them.
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
That app is unnecessary. Pegasusq governor already does that by default. Goes to 1 core and 200mhz when screen off, at least that's how my Note 10.1 was. I assume it is the same here since the International GS3, GN 10.1, and GNII basically share the same kernel with a few minor differences.

I think I may try the perseus kernel today to see if it improves battery.. I haven't heard it does.. I just been seeing people do that benchmark stuff with it
-TeaM VeNuM Like A Boss

Interesting... I have a script that reports on CPU freq and, when plugged into USB (maybe the wall charger too, didn't check), it appears that the kernel runs cpu0 and cpu3 all the time, even when screen off. With the phone unplugged, it went to using only cpu0 but didn't cap the freq. It was spending a good amount of time at the higher frequencies even though I had nothing running.

MiguelHogue said:
I think I may try the perseus kernel today to see if it improves battery.. I haven't heard it does.. I just been seeing people do that benchmark stuff with it
-TeaM VeNuM Like A Boss
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1959898&page=5
Post #42

I installed the app to turn the rotation off when the screen is off so far everything good but when I get a call this goes crazy because the screen goes while in call. I know this because I have an smartwatch which it has a notification app and every message that the phone has my watch vibrates with that message and I had a call few minutes ago my watch started vibrating non stop until I hang up.
Sent from my SPH-L900 using Tapatalk 2

[Q] Screen flickering *Lollipop update

Hell0
Getting vertical lines on smt700 non rooted after over the air update (U.S)
After update I did a factory reset installed apps One by one and I started to notice a flicker of VERTICAL lines appearing at start of boot and also when batter is low it will freez slightly and do the vertical line thing before freezing a little then shutting off..
this only also with games...
Thanks a lot..
-AHMED-

My sister noticed an occasional black screen flash after updating her Tab S 10.5 to Lollipop. I have the same model upgraded to Lollipop and have never experienced this issue but twice, once on KitKat and once with Lollipop I saw part of the screen look scrambled (like an old set tuned to a channel that WA not in range), for a second after hitting the home key.
Sent from my SM-T800 using XDA Premium HD app

Green flicker
Smt700 wifi screen flashes green and gets vertical lines....
Sometimes when the screen does this flickering it restarts...
-Ahmed-

My 10.5" T800 has been on for over 200 days and has never been turned off or rebooted since i got it, no problems at all with flickering, but the older you get the less sensitive you get, I am not a gamer so my tablet is not stressed.
If you are having problems get your tablet repaired or replaced.
John.

I ve the same issue after upgrading to lollipop, I cant find the solution

Still flickering
try everything to solve this flickering with vertical line issue.
Nothing worked..
Factory reset, disable hardware overlays and limit performance ultimately won't fix this issue...

I have the same issue.
Downgrading does not solve the problem
I have seen that it happens when battery is lower than 50%.
To mitigate the problem I have set seen brightness to 30% fixed and also losing mobile segnala makes the screen flicker or the tablet to reboot

When you rotate the tablet do the vertical lines rotate as well.
John.

All problems started only after lollipop update.well most of us are getting them,,random reboots,green flickering lines,grey bars etc,,
But the only available solution for flickering Is turning the power saving mode on which is what I have done

iam facing this issue with my t705
its not the lollipop fault
its an hardware problem, the battery connector socket

This happened to me before and after the lollipop update. Someone suggested to use power saving mode to restrict CPU usage. It seems as if the tablet goes crazy whenever theres a high cpu load involved.

I have the same problem after update to lolipop. Most often occurs when there is a lot of notifications and low battery.
In my opinion is a software problem, what do you think ?
edit:
8% battery, lot of vertical lines during using notifications center, tablet reboots - this never happened before (on 4.4).

[SOLVED]
Fixed screen flickering issue !!
did this by governing the frequency to not pass more than 1.6 ghz...
Rooting then installing overclock widget and setting frequency to not pass 1.6ghz. Max..
From what I know about chips ''they are not all baked alike'' the same chip could come out with lower stable frequencies ..
I hope this helps someone for it has 100% solved the screen flickering problem for my smt700...
Thanks...
-Ahmed-

I found this, might be worth a try.
http://www.problogbooster.com/2014/06/on-screen-display-flickering-error-android-xda.html
John.

Tinderbox (UK) said:
I found this, might be worth a try.
http://www.problogbooster.com/2014/06/on-screen-display-flickering-error-android-xda.html
John.
Click to expand...
Click to collapse
My relative has complained of an odd flicker (screen goes briefly black) after updating to Lollipop. Usually happens while moving from an app to the home screen. I sent them instructions based on that article so they can test if it fixes their issue. I'll post the results but likely after a few days to make sure it actually works. Oddly enough I have an identical model SM-T800 on Lollipop and do not have the issue that they find so annoying.
Thanks for posting the article.
Sent from my SM-T800 using XDA Premium HD app

I've seen it on mine since Lollipop came along. In my case I get the screen with snow - like a TV tuned to a channel with no signal - . It's happened when the screen was timed out and then awakened. I've not been bothered by it more than about 5 or 6 times so I've just not bothered with doing anything about it.

Sefto said:
I have the same problem after update to lolipop. Most often occurs when there is a lot of notifications and low battery.
In my opinion is a software problem, what do you think ?
edit:
8% battery, lot of vertical lines during using notifications center, tablet reboots - this never happened before (on 4.4).
Click to expand...
Click to collapse
Video:
https://www.youtube.com/watch?v=4iBDVirN_XM
Service center in Poland (CCS) replaced screen and repaired motherboard. It seems to be fixed.

I thought it was a lollipop issue, but having followed the advice to force GPU screen rendering through developer options, I found the problem did not go away. Thus, it must be a hardware issue.

corvus.corax said:
I thought it was a lollipop issue, but having followed the advice to force GPU screen rendering through developer options, I found the problem did not go away. Thus, it must be a hardware issue.
Click to expand...
Click to collapse
Hello,
Did you try to set the default CPU frequency to 1.6 ghz... maybe even try to govern it down to 1.4ghz.
For my WiFi smt700 simply underclocking the cpu completely fixed the issue...
The issue is due to either your tab cpu wasn't from a set baked that could handle Higher work loads or quick raises in frequency like from sleep or switching between apps.. forcing GPU rendering take away resources from cpu and forces the GPU to do the work.. Hopefully an official kernel update could help with this in the future...
But for now under clocking the cpu or force GPU rendering or powersave mode all appear to help resolve the screen flickering issue and the only constant that I can determine is that these fixes all involve taking away workload from the cpu...
UNDER CLOCK FOR NOW !!
Thanks... (hope underclocking helps some members here)
-Ahmed-
Sent from my SM-T700 using XDA Free mobile app

That's interesting. Unfortunately, my device is not rooted yet and I don't plan to do that in the near future. So while I can use powersaving, I can't underclock. If there is a problem with the quality of the CPU, then IMO Samsung owes me a fully working device. I mean, they sold the device with the idea it was able to run at correct speeds.

CPU frequency sometimes lock on maximum frequency values

Hi guys.
I have global device version, without root, everything is default.
Sometimes (independently how exactly I use the device) it could be locked on maximum CPU frequency. I noticed this issue just, randomly. I've installed CPUZ to see more details about phone and then noticed that all frequencies in maximum (1612 first 4 cores and 1804 all another 4 cores).
Then I've installed AccuBattery to see the energy consumption and noticed that when this bug occurs, the device consumes about 210-240 mAh (with disabled all wireless interfaces surely), but after restart, when everything OK with frequencies stepping, it consumes about 110-140 mAh.
I've been facing this issue on 9.5.19.0 and the same on 8.8.16.
Have someone similar issues? Could you please install CPU-Z (or any anorher similar application) and say if everyone has locked frequencies?
Yes, I know, I've checked all background processes, I've enabled debug mode, connected via cable to laptop and.. adb shell -> top, I was seeing on real CPU activity. It could occurs randomly and then only reboot device could fix it until it happen again.
The same bug I found on the same phone in my friend. Strange, actually.

iFreeMan said:
Hi guys.
I have global device version, without root, everything is default.
Sometimes (independently how exactly I use the device) it could be locked on maximum CPU frequency. I noticed this issue just, randomly. I've installed CPUZ to see more details about phone and then noticed that all frequencies in maximum (1612 first 4 cores and 1804 all another 4 cores).
Then I've installed AccuBattery to see the energy consumption and noticed that when this bug occurs, the device consumes about 210-240 mAh (with disabled all wireless interfaces surely), but after restart, when everything OK with frequencies stepping, it consumes about 110-140 mAh.
I've been facing this issue on 9.5.19.0 and the same on 8.8.16.
Have someone similar issues? Could you please install CPU-Z (or any anorher similar application) and say if everyone has locked frequencies?
Yes, I know, I've checked all background processes, I've enabled debug mode, connected via cable to laptop and.. adb shell -> top, I was seeing on real CPU activity. It could occurs randomly and then only reboot device could fix it until it happen again.
The same bug I found on the same phone in my friend. Strange, actually.
Click to expand...
Click to collapse
i have samne problem on 8.8.16

Just uninstall CPU Z and accu battery problem solve

iFreeMan said:
Hi guys.
I have global device version, without root, everything is default.
Sometimes (independently how exactly I use the device) it could be locked on maximum CPU frequency. I noticed this issue just, randomly. I've installed CPUZ to see more details about phone and then noticed that all frequencies in maximum (1612 first 4 cores and 1804 all another 4 cores).
Then I've installed AccuBattery to see the energy consumption and noticed that when this bug occurs, the device consumes about 210-240 mAh (with disabled all wireless interfaces surely), but after restart, when everything OK with frequencies stepping, it consumes about 110-140 mAh.
I've been facing this issue on 9.5.19.0 and the same on 8.8.16.
Have someone similar issues? Could you please install CPU-Z (or any anorher similar application) and say if everyone has locked frequencies?
Yes, I know, I've checked all background processes, I've enabled debug mode, connected via cable to laptop and.. adb shell -> top, I was seeing on real CPU activity. It could occurs randomly and then only reboot device could fix it until it happen again.
The same bug I found on the same phone in my friend. Strange, actually.
Click to expand...
Click to collapse
I knew this problem about 2-3 weeks ago. When you charging, it go up top freqs too
That's why I want to use custom kernel. But sometimes ( much less than stock ) locked at top freqs so I think it is Miui system policy also.
You should try some kernel manager to solve temporary.
---------- Post added at 09:20 AM ---------- Previous post was at 09:19 AM ----------
SunilSuni said:
Just uninstall CPU Z and accu battery problem solve
Click to expand...
Click to collapse
Problem will back soon on stock kernel

SunilSuni said:
Just uninstall CPU Z and accu battery problem solve
Click to expand...
Click to collapse
Actually bad solution, you know
Zanr Zij said:
I knew this problem about 2-3 weeks ago. When you charging, it go up top freqs too
That's why I want to use custom kernel. But sometimes ( much less than stock ) locked at top freqs so I think it is Miui system policy also.
You should try some kernel manager to solve temporary.
Click to expand...
Click to collapse
Aha, yes, you're right. Now I sorted our everything in my mind and seems it occurs after charging.
Do you think the same issue has all people with this smartphone? But just a lot of them doesn't look on that?
But I'd say it's critical bug to have locked frequencies. Why do you think it's like "miui system policy"?
I had many xiaomi devices, only here I faced with this issue. I thought may be my phone has manufacturing defects.. but seems the bug is general on our device.
What the miui version you have?
Ah, I didn't want to root my device.. I wanted to leave it as is, as stock and don't think about all this headache, but seems the time to unlock bootloader.. Because I haven't root, so, I'm not able to use any kernel managers to reset the frequencies/governors

iFreeMan said:
Actually bad solution, you know
Aha, yes, you're right. Now I sorted our everything in my mind and seems it occurs after charging.
Do you think the same issue has all people with this smartphone? But just a lot of them doesn't look on that?
But I'd say it's critical bug to have locked frequencies. Why do you think it's like "miui system policy"?
I had many xiaomi devices, only here I faced with this issue. I thought may be my phone has manufacturing defects.. but seems the bug is general on our device.
What the miui version you have?
Ah, I didn't want to root my device.. I wanted to leave it as is, as stock and don't think about all this headache, but seems the time to unlock bootloader.. Because I haven't root, so, I'm not able to use any kernel managers to reset the frequencies/governors
Click to expand...
Click to collapse
- I'm on Masik 2.5 with BlackBox kernel. If Kirks solve Dual app problem I will switch
- Miui system policy: I can not freeze/delete many system apps/modules after rooted. I also can not disable many Miui services/procsess ( by MyAndroidTools ). Miui also has performance mode for some purposes, can be auto activate in some cases

Does it drain battery faster? It can be caused by one of your user app. Try to remember when this started to happen, and traceback to the time you install/update apps during that period. Use MiXplorer and check the last installed app. There are apps that can triggered to mine cryptocurrency during charging, making your phone super hot and charge very slow. I am not saying it must be a malware, but it can be some apps that act similarly.
Try to boot to safe mode for several hours to check if it really caused by user app. Turn off your phone > Hold power to turn on > As soon as mi logo appear, quickly hold volume down until the phone finish booting (can be up to 30 seconds). You should see "safe mode" watermark at the bottom left corner, indicating all user app has been temporary disabled. Leave it for several hours to see if the battery still drain or the phone stay awake all the time (high cpu usage). To exit from safe mode, simply reboot.
I always found it is kind of a habit to blame MIUI for everything. I am not defending MIUI here, they bloat a lot. I also hate it and I am using RR now. But on several occassions when we troubleshoot, we found out it is one of the user app that cause the trouble, ads, or slow charging; not anything related to MIUI. Blaming MIUI won't solve the problem, only troubleshooting will lead us to the real culprit. In your case, it still can be caused by the MIUI itself. But until you troubleshoot it out, you won't know who is the real culprit.
For comparison, when still using MIUI 9.5.17.0 I can easily achieve 10+ hours SOT within 1,5 days (max is 14 hours). When switched to RR, affected by the wifi deep sleep drain, I rarely get 10 hours SOT anymore. Still in the process of troubleshooting the problem.

Zanr Zij said:
- I'm on Masik 2.5 with BlackBox kernel. If Kirks solve Dual app problem I will switch
- Miui system policy: I can not freeze/delete many system apps/modules after rooted. I also can not disable many Miui services/procsess ( by MyAndroidTools ). Miui also has performance mode for some purposes, can be auto activate in some cases
Click to expand...
Click to collapse
I don't mind to have additional applications.. But I don't like when my CPU works incorrect O_O
Desmanto said:
Does it drain battery faster? It can be caused by one of your user app. Try to remember when this started to happen, and traceback to the time you install/update apps during that period. Use MiXplorer and check the last installed app. There are apps that can triggered to mine cryptocurrency during charging, making your phone super hot and charge very slow. I am not saying it must be a malware, but it can be some apps that act similarly..
Click to expand...
Click to collapse
I've checked everything. It occurs after charging in most cases. I think that is the bug in governor. Yes, it drain battery a bit faster, but just a bit, I just calculated emergy consumption.
So, when my frequencies was locked, I just connected my phone via ADB to laptop and was looking at the "top" utility to see the load of CPU. And guess what? No load! Idle 796%. (all another 4% for top with refreshing each second and for CPU-Z ran on device).
Weird bug, actually...
I think I have unlock device and re-flash firmware via fastboot to over-write everything.. who knows where bug is hidden.
I've already done full reinstall system. wipe.. but it could occurs even during I read the book. Or just.. enable device, go to CPUZ, and frecuencies locked at max. Absolutely random event

iFreeMan said:
I've checked everything. It occurs after charging in most cases. I think that is the bug in governor. Yes, it drain battery a bit faster, but just a bit, I just calculated emergy consumption.
So, when my frequencies was locked, I just connected my phone via ADB to laptop and was looking at the "top" utility to see the load of CPU. And guess what? No load! Idle 796%. (all another 4% for top with refreshing each second and for CPU-Z ran on device).
Weird bug, actually...
I think I have unlock device and re-flash firmware via fastboot to over-write everything.. who knows where bug is hidden.
I've already done full reinstall system. wipe.. but it could occurs even during I read the book. Or just.. enable device, go to CPUZ, and frecuencies locked at max. Absolutely random event
Click to expand...
Click to collapse
Try not to install anything first after the wipe. Or just try the safe mode. As I said before, it might be caused by the same user app you installed after you wipe.

Desmanto said:
Try not to install anything first after the wipe. Or just try the safe mode. As I said before, it might be caused by the same user app you installed after you wipe.
Click to expand...
Click to collapse
That's could be.
I've unlocked bootloader and just flashed the last 8.8.16 with fastboot (just had thought about it could fix something, may be some thin deep bug).
But no, after I've installed the firmware with fastboot, I've started to install all my software from Google play. And guess what? I just see in cpuz and see the same - frequencies are locked on maximum values.
Strange .. I don't use something custom, or from unverified sources, just everything from google play.
Even without games (just PUBG). All another software just social. FB, messenger, Instagram, telegram, WhatsApp, Viber, and so on. And I even cannot to see what application could cause that. Don't want to root the device. After I've installed everything and rebooted device (to reset that bug with frequencies), now everything normal. Continue observation...
Just wanted to find someone who has the same issue and at least compare revisions, installed apps and so on...to try to find the trigger which causes this issue.

iFreeMan said:
That's could be.
I've unlocked bootloader and just flashed the last 8.8.16 with fastboot (just had thought about it could fix something, may be some thin deep bug).
But no, after I've installed the firmware with fastboot, I've started to install all my software from Google play. And guess what? I just see in cpuz and see the same - frequencies are locked on maximum values.
Strange .. I don't use something custom, or from unverified sources, just everything from google play.
Even without games (just PUBG). All another software just social. FB, messenger, Instagram, telegram, WhatsApp, Viber, and so on. And I even cannot to see what application could cause that. Don't want to root the device. After I've installed everything and rebooted device (to reset that bug with frequencies), now everything normal. Continue observation...
Just wanted to find someone who has the same issue and at least compare revisions, installed apps and so on...to try to find the trigger which causes this issue.
Click to expand...
Click to collapse
That's why I prefer the troubleshooting starting from small first, before going thru the whole ROM flashing. 80% of the time, it is caused by user app. A simple safe mode or factory reset will pointed out a very obvious clue immediately.
Not all playstore app are bug-free, we just don't know what happened in the next update of the app.
While you don't state it before, it can be mediaserver bug. It is caused by the mediascan which stucked at certain file/folder during the scan and keep eating CPU cycle forever. But I've never seen it goes thru almost full CPU load. The solution is to rearrange the files/folder in your internal storage or microsd (if you have it), clean up as needed. Sometimes, a simple restart resolve the issue, but not always.
I have Whatsapp. Some users in the kaskus has FB, IG, Telegram installed; I don't see much complaint from them regarding the CPU usage, except that the IG story are cropped/zoomed (16:9 to 18:9 ratio problem). You can only troubleshoot it step by step, by installing one app at a time. It is very lengthy process and tedious. But usually you can spot which app can be the potential culprit by looking at the battery usage of them. Example, you don't use viber at all, by it appears as one of the highest battery usage.

Desmanto said:
That's why I prefer the troubleshooting starting from small first, before going thru the whole ROM flashing. 80% of the time, it is caused by user app. A simple safe mode or factory reset will pointed out a very obvious clue immediately.
Not all playstore app are bug-free, we just don't know what happened in the next update of the app.
While you don't state it before, it can be mediaserver bug. It is caused by the mediascan which stucked at certain file/folder during the scan and keep eating CPU cycle forever. But I've never seen it goes thru almost full CPU load. The solution is to rearrange the files/folder in your internal storage or microsd (if you have it), clean up as needed. Sometimes, a simple restart resolve the issue, but not always.
I have Whatsapp. Some users in the kaskus has FB, IG, Telegram installed; I don't see much complaint from them regarding the CPU usage, except that the IG story are cropped/zoomed (16:9 to 18:9 ratio problem). You can only troubleshoot it step by step, by installing one app at a time. It is very lengthy process and tedious. But usually you can spot which app can be the potential culprit by looking at the battery usage of them. Example, you don't use viber at all, by it appears as one of the highest battery usage.
Click to expand...
Click to collapse
Yes, I understand that and understand why it would occurs and tried to investigate in this way, but...
I have equals application list which I had on previous device except...CPU-Z and AccuBattery (the AccuBattery for now is removed) because of I faced with this frequencies issues.
This morning it happened again. But I just.. woke up, saw on frequencies - everything OK. Then I just.. Instagram, Telegram, Facebook Messenger and Google Chrome and no more. Then I realized that the phone became a bit warm.. I saw on frequencies - it was locked again
As it happened, I've came to office, connected via ADB to laptop and made several screenshots from `top` utility and looked a bit into `adb logcat`. But nothing... IDLE ~798%. And then I've tried to go to all apps and do force stop for ALL apps. But nothing.
I just rebooted device again...
Please look on it.. https://drive.google.com/open?id=1yXjQQ4rsF3MURh1PF0DZ1Z_Gtgc4-m4_

Just concerning about.. there are a lot errors in logcat. But I understand that.. that's ok.
But 90% of logs flowing from system processes, not from apps. But there is nothing critical.. Nothing something what could flow unstoppable text and caused over-loading CPU.
I'm afraid that it could be manufacturing defects
I event tried to re-flash firmware with fastboot (I thought that byte-by-byte flasing into ROM memory could fix some random small issues). But after flashing with fastboot this CPU locking happening again.
Actually.. dunno what to do with that. The last thought to try any custom ROM (may be Lineage OS) with custom kernel and make sure that it is just bug in Xiaomi's ROM..

And I've posted about this bug on official MIUI forum and seems this bug happening with some people.
http://en.miui.com/thread-3620931-2-1.html
Talking about me. I've flashed Pixel Experience and for now everything good. Seems that's the bug in xiaomi firmware.

iFreeMan said:
And I've posted about this bug on official MIUI forum and seems this bug happening with some people.
http://en.miui.com/thread-3620931-2-1.html
Talking about me. I've flashed Pixel Experience and for now everything good. Seems that's the bug in xiaomi firmware.
Click to expand...
Click to collapse
Maybe that's the random issue with certain apps configuration with some users. Not all reporting the same. Seems to be related to thermal engine or CPU governor configuration. But I don't know where it goes wrong. At least you solved it now by flashing custom ROM.

Desmanto said:
Maybe that's the random issue with certain apps configuration with some users. Not all reporting the same. Seems to be related to thermal engine or CPU governor configuration. But I don't know where it goes wrong. At least you solved it now by flashing custom ROM.
Click to expand...
Click to collapse
I just used custom firmware just for check is that factory defect. But seems that's issue only with xiaomi's firmware.
Yes, I thought that could be governor likewise. But.. Don't think so, because this low-level things, I think, debugged and enhanced successfully by default. Seems some conflicts between system applications.
On custom ROM I haven't faced with this issue, so...
But this morning I've flashed again the global stable firmware (9.6.3.0), will see how it will going..

iFreeMan said:
But this morning I've flashed again the global stable firmware (9.6.3.0), will see how it will going..
Click to expand...
Click to collapse
Yes, I've got first lock on maximum frequencies.
So, after researches.. I could say that it's a bug in xiaomi firmware. Definitely.

I also have this problem on every MIUI rom, with stock or custom kernel. It happens randomly. I have tested in 9.6.19, 9.6.4.0, and betas 8.8.23 and 8.8.30.
If I flash any custom rom the problem desapears so it must be a problem of miui rom itself.

marc_alv said:
I also have this problem on every MIUI rom, with stock or custom kernel. It happens randomly. I have tested in 9.6.19, 9.6.4.0, and betas 8.8.23 and 8.8.30.
If I flash any custom rom the problem desapears so it must be a problem of miui rom itself.
Click to expand...
Click to collapse
I have no problem with Miui based custom Rom + custom kernel

Zanr Zij said:
I have no problem with Miui based custom Rom + custom kernel
Click to expand...
Click to collapse
Could you specify the rom and kernel, please?