Does anyone else have issues with the WiFi connection while the screen is turned off? I noticed that not a single one of my music streaming / radio apps work when the screen isn't on. It works for maybe a minute before all sound just stops. Starts just fine again once I power up the screen.
Has there been any changes done to the handling of these matters in ICS perhaps?
Pretty annoying not being able to stream music over WiFi as I think I'll hit my 5GB limit on data pretty fast if I can't use the WiFi at work for this.
So has anyone else noticed these issues?
SBS_ said:
Does anyone else have issues with the WiFi connection while the screen is turned off? I noticed that not a single one of my music streaming / radio apps work when the screen isn't on. It works for maybe a minute before all sound just stops. Starts just fine again once I power up the screen.
Has there been any changes done to the handling of these matters in ICS perhaps?
Pretty annoying not being able to stream music over WiFi as I think I'll hit my 5GB limit on data pretty fast if I can't use the WiFi at work for this.
So has anyone else noticed these issues?
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Yeah same here. I remember this being an issue with Android 2.1 for my Desire but was fixed in custom roms. Might be the same situation here again.
I remember this being an issue with my Nexus One, don't remember if it was fixed in 2.2 or 2.3. I remember testing file transfer using SwiFTP, with the bug the file transfer would go down to double digits (kB/sec), with the bug fix it would be a few hundred kB/sec, with the screen on it would hit mB/sec or so (in any Android version).
I believe this is the official issue:
http://code.google.com/p/android/issues/detail?id=9781
With my Nexus S I'm not experiencing this bug. Sscreen on still gives me a major wifi speed boost, but screen off I get a few hundred kB/sec, which should be more than enough for any streaming app. KiloBYTES btw, not bits. I'm surprised ICS and/or Galaxy Nexus brought this problem back. Or it could be something else entirely.
Are you connected via 2.4GHz or 5GHz wifi? I would think the new 5GHz radio in the GN probably has more aggressive power saving features. Try switching to 802.11b/g (instead of 802.11n, in any frequency), see if it helps.
Have you changed your WIFI sleep policy?
On my Froyo phone, if you hit menu while in the WIFI settings (I know there is no menu in ICS) you get an option to go into advanced settings where you have the option to choose your WiFi sleep policy (When screen turns off, never when plugged in, never).
There should be a way to access that advanced settings area somewhere.. My phone is a couple hundred miles away right now and I won't see it for another week so I can't be of much further help right now. However, there "was" a setting in previous versions.
best info at the time last year was here for the N1
http://www.google.com/support/forum/p/android/thread?tid=01a47ff5b0a92d52&hl=en
7xx replies there to read, but really good info. somewhere in there, maybe around#600 the info gets good, can't remember. But shortly around this time the problem was gone/fixed.
there was a guy with an app i think it was wifi fixer, i could be wrong. that worked sometimes, but battery drain was bad. Whatever google, or CM did fixed the low power save mode issue. I'm thinking it was something at the kernel level?
edit, on second thought, there's no good reason to read all that. You won't get a fix out of it anyway. It was updated away in the end, something related to MAC addresses and build numbers and frf50 or some such.
BUT this seems like the same kind of thing going on in the power save mode.
Have you checked your advanced settings?
Wi-Fi>>(settings [bottom right])>>Advanced>>Keep Wi-Fi on during sleep...
Mine was set to always by default, so I suspect that the issue lies else where...
Neville.Holland said:
Have you checked your advanced settings?
Wi-Fi>>(settings [bottom right])>>Advanced>>Keep Wi-Fi on during sleep...
Mine was set to always by default, so I suspect that the issue lies else where...
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Same here. Mine was set to always by default but still getting this issue.
Sent from my Galaxy Nexus using XDA App
I would suggest that this issue is related to the individual applications you are using, rather than anything to do with Android.
I am able to stream music from Google Music via WiFi just fine when the screen is off, and I am also able to talk to someone on Skype via WiFi just fine when the screen is off.
oscillik said:
I would suggest that this issue is related to the individual applications you are using, rather than anything to do with Android.
I am able to stream music from Google Music via WiFi just fine when the screen is off, and I am also able to talk to someone on Skype via WiFi just fine when the screen is off.
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Thanks for posting that; I was getting pretty worried and disappointed after reading this thread. I had to deal with this when I first got my Nexus One, until Google released the 2.2.1 update with a new Broadcom driver which finally fixed the issue. No streaming, no pushes, just nothing at all from wifi when the phone went to sleep. All traffic to/from the phone would just stop. It was maddening.
The Galaxy Nexus comes to Canada a week from today, and this would've been a show-stopper for me. At least it's working for you, so my day isn't ruined quite yet
Has this issue ever been nailed down? I've seen considerable discussion on it going back years. I've seen considerable speculation regarding WIFI mode and Governor. I've seem many of the bug reports marked closed.
Yet I have a GN on v4.0.4 and the moment the screen goes off - either because you turn it off or it just times out - the WIFI goes to h*ll. I've run ping and network trace from both sides and there is no doubt the WIFI stays connected, however latency goes way up and packets are lost... and with TCP connections it gets congested with retransmits. I've run with the governor set to "Performance" and there is no difference.
So, is there any consensus on what is causing this problem with current stock hardware/software?
I read that it's something that's been coded in for a while. Try using this:
https://play.google.com/store/apps/details?id=com.ratcash.wifiperf
-Sent via XDA Premium-
Ok, to answer my own question, this is still related to the PSP issue from years ago:
code.google.com/p/android/issues/detail?id=9781
code.google.com/p/android/issues/detail?id=15549
Bottom line is that some hardware - like GN - has an additional level of PSP on WIFI. The issue was resolved by inclusion of an additional lock mode - WIFI_MODE_FULL_HIGH_PERF - some time ago. However, its up to an application to request the new lock state if it thinks it needs it. Many don't.
So, its probably not a bad idea to contact developers of the various applications and recommend they look into the new lock level in the later APIs.
Also, the "WIFI High Performance Widget" can be used to manually hold a WIFI_MODE_FULL_HIGH_PERF lock on the WIFI if you're dealing with an application that isn't doing it its self. Beware of the other "WIFI fixes" out there, none of the ones I tested were acquiring the correct lock.
Also, from an adb shell you can use "dumpsys wifi" to see who is holding what lock, for example:
Code:
Locks acquired: 5 full, 5 full high perf, 5 scan
Locks released: 4 full, 4 full high perf, 5 scan
Locks held:
WifiLock{PANDORA type=1 [email protected]}
WifiLock{HighPerformance type=3 [email protected]}
Here you can see Pandora is only holding type=1 (WIFI_MODE_FULL) and HighPerformance is holding type=3 (WIFI_MODE_FULL_HIGH_PERF). Dumping the WIFI state takes the guess work out of it.
Tried that widget, having absolutely no luck with 'in tune' and 'winamp' for radio with the galaxy nexus verizon...
as soon as the device sleeps, wifi goes to hell and buffer drops in and out every 2 seconds. Completely unusable, any recent fixes? this is totally making me think I just bought a $400 brick since this feature was very important for me.
What may be confusing about that widget is that it is a "widget". You have to locate it under "widgets" and then put it on the surface and then click it to enable it... it should be blue when on, and black when its not.
tlum said:
What may be confusing about that widget is that it is a "widget". You have to locate it under "widgets" and then put it on the surface and then click it to enable it... it should be blue when on, and black when its not.
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Click to collapse
I have been trying to put the 'widget' itself (2x2 square) on the home screen but even if i hold and drag it to where I want it, it never actually appears on the screen. And of course i'm still getting crazy ping times...Does anyone else have this working on a GN (verizon - not that it should make a difference)?
I have found a few workarounds to this issue, none are great and frustrate me greatly.
1. Root and use the franco kernel. Seems people with that have no issues - since you can set? the wifi to full performance.
2. Use this wifi performance widget
3. Use an app that has properly set its own wifi settings. - Going through all the radio apps on the google market, i am finding only one app that seems to be doing this right: DI Radio - some kind of dance/techno/etc - confirmed it with ping times, they remain low on sleep.
Not one other radio app seems to have set 'proper' settings - which shows that something needs to be addressed in the os...I was having good luck with the yahoo music app, but depended on the stream (maybe some buffer more :dunno - the ping results are garbage.
EDIT: I tried installing high performance wifi again, and finally got the widget to one of the homescreens! Let me break it down for anyone else who comes across this. After install, the small 1x1 blue app box is put on your desktop and the black screen comes up with the wireless networks and a checkbox. I then went to apps->widgets and tried putting the 2x2 widget on the home screen again, and like always it clicks on like its there (and when you click home and its never there). However, this time I hit BACK instead of home after dropping the widget and it took me back to the black screen with the checkbox, then i hit home and voila its sitting there. You can click on it like you mentioned! Confirmed with ping for tune in...pings remain low.
If this continues to work, it may be a godsend. It is annoying having to have this, but far far better than not.
I had that problem also especially when i tried to download big files when the screen turn off the download speed became extremely slow, this widget solve this, i think to that moment its the easiest solution tap it when you need it tap it again when you done.
By the way i had this problems with franko kernel also and again to my opinion it is the good solution for now, until the apps developers update their apps.
Sent from my Galaxy Nexus using XDA
If you download the SDK - you only need Android SDK Platform-tools - to a PC and use the adb shell it is easy to dump the WiFi lock state with dumpsys wifi and see exactly which app(s) are holding what locks. Completely takes all of the guessing out of who is doing what when. Judging the behavior can be subjective because there are other reasons that the WiFi can break up which can be very frustrating.
developer.android.com/guide/developing/tools/adb.html
Erlang2012 said:
I had that problem also especially when i tried to download big files when the screen turn off the download speed became extremely slow, this widget solve this, i think to that moment its the easiest solution tap it when you need it tap it again when you done.
By the way i had this problems with franko kernel also and again to my opinion it is the good solution for now, until the apps developers update their apps.
Sent from my Galaxy Nexus using XDA
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The app does work well, however I have been running into some issues as I continue to use it. It randomly decides to turn off the forced max wifi (even though its still blue and looks like its operating) or perhaps the phone is forcing the wifi issue again. It seems to happen when you are downloading, playing with some other apps? You only notice it when you sleep it and the streaming radio immediately starts having issues.
Solution is to flip back to the widget turn it off and turn it on again. It works, but is another annoyance.
I haven't yet ascertained exactly what causes it to switch off yet.
tlum said:
If you download the SDK - you only need Android SDK Platform-tools - to a PC and use the adb shell it is easy to dump the WiFi lock state with dumpsys wifi and see exactly which app(s) are holding what locks. Completely takes all of the guessing out of who is doing what when. Judging the behavior can be subjective because there are other reasons that the WiFi can break up which can be very frustrating.
developer.android.com/guide/developing/tools/adb.html
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Click to collapse
I will look into this, thank you.
---------- Post added at 06:16 PM ---------- Previous post was at 05:28 PM ----------
I used the adb shell (learned how to install all these dev tools and how to use it first ) and here is some updated info:
Tunein = type=1
Pandora = type=1
Audioaddict service (Digitally imported app I posted above previously) = type=3
google music = type=3
High performance app = type=3 (havent figured out why this likes to stop randomly)
I will update with more app info, hopefully others can also email the developers and see that it gets fixed, so we no longer have to use damn workarounds...
jeep364 said:
... It randomly decides to turn off the forced max wifi (even though its still blue and looks like its operating)...
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Click to collapse
Yes, it definitely has an issue holding its lock, and it definitely seems related to another application taking over and also when it switches to cell and back, I can confirm that. It may be related to the OS since the widget thinks it still on when clearly the lock as been released, so it may be that the OS released the lock and the widget has no idea. I haven't taken the time to look into the details yet, and this is something we should make the developer aware of.
tlum said:
Yes, it definitely has an issue holding its lock, and it definitely seems related to another application taking over and also when it switches to cell and back, I can confirm that. It may be related to the OS since the widget thinks it still on when clearly the lock as been released, so it may be that the OS released the lock and the widget has no idea. I haven't taken the time to look into the details yet, and this is something we should make the developer aware of.
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Click to collapse
Yup, from what I can see it loses lock:
1. when cell switching
2. manually killing/starting wifi
3. when ANY application is downloaded/removed (ie. changes in permissions)
4. when playing with dolphin, other apps for more than a few minutes, it will kill it even though the blue stays lit. I think its as you mentioned, during general use of the phone, at some point some permissions are changed and hifi performance is tossed off its lock.
If you only are streaming music and re enter the phone to check a gmail alert or two...it seems to be fine. otherwise you need to hit the lock widget one more time before sending it to sleep with pandora/tune in playing.
Ever since I use the Llama app (Location Aware Mobile Application)on my i9195 (Carbon ROM 4.4.2) I have the problem that Llama doesn't receive cell tower information when the screen is turned off. This is a major feature of the app, which doesn't work. I activated the active cell polling, wake up during sleep etc, but the only thing working is to activate the screen during every poll, which is not favorable of course.
The thing is, that with my previous Huawei Y300, with stock ROM 4.1.2 it worked flawlessly without having to enable all the extra (battery consuming) settings. Unfortunately I don't know if the stock Samsung ROM didn't have this bad behavior since I booted the original ROM only once to enable root, in order to instal CWM recovery
Would this be a ROM issue or device issue? Too bad this is my first post here and therefore I can't post in the dev. section of Carbon ROM on this website :crying:
Has nobody issues with Llama on this device/ROM? The location awareness is really adding something to the use of the phone. Really too bad that I have to turn the screen on, before Llama realizes that I am at another location.
I love Llama, it's a great app which allows me to set it and forget it. I love not having to remember to turn radios on/off, muting phone at college or work.
I had to uninstall it because I switched carriers, and with the new one I keep getting "1-1-1-1 No signal" on the Recent towers tab. It's intermittent (once every detected tower) and it had my profiles going nuts.
I also was experiencing issues where my phone would freeze until it forced a reboot almost every time I got back home.
Sounds like your current ROM might be to blame. I suggest you try Llama with the stock rom. I for one prefer stock with Action Launcher. You might lose the added features of the custom ROM, but at least Samsung's camera interface is way better than AOSP, at least to my taste and needs.
JoeCastellon said:
I love Llama, it's a great app which allows me to set it and forget it. I love not having to remember to turn radios on/off, muting phone at college or work.
I had to uninstall it because I switched carriers, and with the new one I keep getting "1-1-1-1 No signal" on the Recent towers tab. It's intermittent (once every detected tower) and it had my profiles going nuts.
I also was experiencing issues where my phone would freeze until it forced a reboot almost every time I got back home.
Sounds like your current ROM might be to blame. I suggest you try Llama with the stock rom. I for one prefer stock with Action Launcher. You might lose the added features of the custom ROM, but at least Samsung's camera interface is way better than AOSP, at least to my taste and needs.
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Click to collapse
Thanks, luckily I don't have any of your issues so far, only the cell tower updates being delayed until the screen turns on. A few posts away from now I can ask the question in the specific ROM forum and see if they can fix it.I love the ROM and don't like the Samsung layer of the original stock ROM.
In the meantime the cell tower option has been added to the Carbon rom!
TF-101 & S4-mini i9195
Few days ago my wifi connection went strange... All the time it was perfect, i did nothing new or anything to make it worse. Since then it was fast, quick response and everything. Most apps using internet connection working fine, but some applications or all behave unnatural , especially internet browser. I use ICS Browser on 4.1.2 JB , always. Was working perfect till now. Now its loading till half of progress bar and freeze or sometimes its progress bar goes to 1/10th and freezes. If I wait a long time it finally loads the page, or not. If I press back button and then forward button it loads the page normally. Some app behave the same. Cleaning cache, reinstalling apps won't work. Today I restored Nand backup and nothing. Backup wad made few months ago when internet was super fast. What could make it worse?
If I look on little arrows indicating upload or download under wifi signal strength, they are gray like no connection is made, and once in a while orange one (download) blinks for a second and then again gray for a long time. And it should be lit orange till page loads fully or app do what it needs to do.
I did notice the same using Google Play app. I tap Install and it says Downloading, but nothing happens, but if I cancel and tap install again it works nice. In browseri have to go back and tap link again to make it work fast.
No one have same issues?
blackfire74 said:
Few days ago my wifi connection went strange... All the time it was perfect, i did nothing new or anything to make it worse. Since then it was fast, quick response and everything. Most apps using internet connection working fine, but some applications or all behave unnatural , especially internet browser. I use ICS Browser on 4.1.2 JB , always. Was working perfect till now. Now its loading till half of progress bar and freeze or sometimes its progress bar goes to 1/10th and freezes. If I wait a long time it finally loads the page, or not. If I press back button and then forward button it loads the page normally. Some app behave the same. Cleaning cache, reinstalling apps won't work. Today I restored Nand backup and nothing. Backup wad made few months ago when internet was super fast. What could make it worse?
If I look on little arrows indicating upload or download under wifi signal strength, they are gray like no connection is made, and once in a while orange one (download) blinks for a second and then again gray for a long time. And it should be lit orange till page loads fully or app do what it needs to do.
I did notice the same using Google Play app. I tap Install and it says Downloading, but nothing happens, but if I cancel and tap install again it works nice. In browseri have to go back and tap link again to make it work fast.
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Click to collapse
Was there any change before you noticed the issue??
You may try turning off your modem and router for 1 minute. Then power on your modem and wait for connex link to become active, then power on your router. Sometimes storms cause equipment to go wonky.
One thing I noticed with old routers for DSL used to create multiple access points using the same SID and security to boost round our house.
That the old routers needed a wee tweaking to allow for newer devices to link properly. Something to do with WIFI sleep signals. I noticed it with Broadcom cards not keeping the speeds at 150mbps and slowly trickling down to 50 to 40mbps. Once I changed the advanced features of my routers (7500 series Westell), I connect at 300mbps and stay, and have no issues with deep sleep wake ups on WIFI.
There is nothing wrong with router. It is something else.
Hello,
Can "Scheduled Power OFF/ON" feature be added into the future builds(LineageOS 14.1)?
I would be happy if Lineage builds get this awesome feature!
There are some third party apps (like automate) which are only capable of switching OFF the device, not capable of turning it back ON......so I request LineageOS team to work on this feature.:good:
Thanks in advance!
Eagerly waiting for this feature...
Sent from my Asus Zenfone 2( Z00A) running Official lineageOS 14.1 builds.
The thing is that this was removed from devices after it was found not to really turn the device off completely. Which makes complete sense as if it is completely off then there is no way to turn it back on.
zelendel said:
The thing is that this was removed from devices after it was found not to really turn the device off completely. Which makes complete sense as if it is completely off then there is no way to turn it back on.
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Click to collapse
On older removable battery Chinese phones when this feature was there, the scheduled power on/off times and dates were the same when the battery was replaced, whether immediately or later (not sure about how much later).
But miui has this feature and it works great on MIUI
Zelendel, kindly point to the commit that was removing the feature.
I would like to try restoring it back for myself.
And what is the programmatic method the app was working? Are you saying that was just enabling airplane mode and switching screen off?
Pretty much that is all it was doing. It was leaving the internet hardware on.
As for the commit. You may not find it. It is not part of the open source android. It is closed sourced and not even really seen anymore on major devices. Most Chinese devices use it as a way to send data back to China when the user doesn't think anything is happening.
i am waiting for solution too.
I think you can make your phone life longer by keeping it off 8 hours a day.
I think that some phones have that hardware ability and some don't. PCs have this ability too.
I own a Xiaomi Redmi Note 7 running on unofficial Lineage OS 17. This feature is partially implemented now.
I set on an alarm.
I power off my phone.
The phone powers up when the alarm goes off. This works only if the alarm is set 5 or more minutes ahead from the time you power off.
As this works flawlessly, it should be pretty easy to add an "Automatic/Scheduled turn On/Off" in the phone settings.
I'm using crontab to automatically turning the phone off at 1 am. The problem is that if I'm still awake and using the phone at that time, it does not warn me. It just turns off. A feature in the phone settings would allow me to abort right before turning of.
If anybody is interested to know the graceful poweroff command, this is my cron tab line
Code:
00 1 * * * am start -a com.android.internal.intent.action.REQUEST_SHUTDOWN