Develop Bugs

wifi sleep problem...

Hi all,
I have 4.0.4 stock gnex.
My wifi settings are this:
Settings->Wifi->(Menu Button)->Advanced. It's listed as "Keep WiFi on during sleep"
When the phone go to sleep the wifi seems to stop, I am downloading an app
from the market, when the phone go to sleep, the download sleep.

Not to doubt you on this but does it also say "Always" beneath the "Keep Wifi on during sleep"? If so, perhaps you have an app that overrides that and disables it.

I have no app that can do it.

Hi, I just tested and had no problems downloading a 50 meg game with screen off.
From honeycomb on google changed how wifi was handled when screen is off. This gives similar problems with older applications but should not be a problem for apps made by Google like Play and Music.
You still did not answer the previous posters question. You reference the advanced wifi setting but not what it is set to.
Sent from my Galaxy Nexus using Tapatalk 2

atkhobby said:
Hi, I just tested and had no problems downloading a 50 meg game with screen off.
From honeycomb on google changed how wifi was handled when screen is off. This gives similar problems with older applications but should not be a problem for apps made by Google like Play and Music.
You still did not answer the previous posters question. You reference the advanced wifi setting but not what it is set to.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
It's obviously set to always

People have had issues with the setting you choose in that menu not sticking. Try toggling it back and forth and doing some reboots. I don't have the issue on 4.0.4.

From what I understand, when the screen turns off wifi goes into a low power state, draining less battery when on standby. So it greatly reduces the speed (sometime pauses) of all connections to save juice.

KiNG OMaR said:
From what I understand, when the screen turns off wifi goes into a low power state, draining less battery when on standby. So it greatly reduces the speed (sometime pauses) of all connections to save juice.
Click to expand...
Click to collapse
I understand if it slowed down, but it shouldn't ever pause though.

This low power state is what I referred to in my previous post. An app must now explicitly request that high power wifi mode is retained when screen is off. All apps from google should be doing this already.
Unprofessional app developers that have not been reading up on the latest changes in android api (like Audible!!! shame on you) will have major slowdowns downloading over wifi when the screen is off.
Sent from my Galaxy Nexus using Tapatalk 2

I have the exact same problem as posted here And I may have found the solution at this other link here.
What seems to be working for me is the change the "Keep Wi-Fi on during sleep" to "Never (increases data usage)". That totally does not make any sense to me. If you 'never" keep wifi on during sleep it should *not* increase data usage. Anyway, I have noticed two things:
1) If I set it to "Never," the files continue to transfer when the screen goes to sleep
2) Wifi transfer rate seems to be *much* faster on my home network. I'm using ES File Explorer, so it could be app related.
Just discovered that according to Google, "Never (increases data usage)" means that it will not stay connected to WiFi while asleep which will increase your 3G/4G data usage. Never the less, it seems my Wifi is better when set to "never"

I wrote an article about wifi usage on my blog here: http://zapek.com/?p=262
You shouldn't worry about PS-Poll mode. It's fine for downloads usually as they don't require a fast interactive response.
Sent from my Galaxy Nexus using Tapatalk 2

KiNG OMaR said:
From what I understand, when the screen turns off wifi goes into a low power state, draining less battery when on standby. So it greatly reduces the speed (sometime pauses) of all connections to save juice.
Click to expand...
Click to collapse
this could be a possible reason, in my office wifi is not really powerful,
a low power state can disconnect the wifi.

I'm checking better the problem, it seems that the wifi goes into some sort of
energy saving mode when the screen is off that drop my wifi speed.
Is there a way to solve this problem?

it seems that I'm not the only one with this problem-
http://productforums.google.com/forum/#!topic/mobile/DJTwAutjsIQ

so no solution to this problem yet ?

sblantipodi said:
it seems that I'm not the only one with this problem-
http://productforums.google.com/forum/#!topic/mobile/DJTwAutjsIQ
Click to expand...
Click to collapse
This is not the same problem that you have. The thread you link to is about general download problem with screen off. Your problem was about downloading from the market while screen is off.
Sent from my Galaxy Nexus using Tapatalk 2

atkhobby said:
This is not the same problem that you have. The thread you link to is about general download problem with screen off. Your problem was about downloading from the market while screen is off.
Sent from my Galaxy Nexus using Tapatalk 2
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Click to collapse

sblantipodi said:
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Click to collapse
In your original post your wrote that you had problems downloading from the market with the screen off.
The android market is a google app and should not have the problem discussed in the thread you linked to.
The problems in the thread relates to applications that have not yet been updated to support power saving features in resent android versions.
So your problem is not the same.
I did write this in my previous posts from may 25. but maybe it was unclear.
Sent from my Galaxy Nexus using Tapatalk 2

atkhobby said:
In your original post your wrote that you had problems downloading from the market with the screen off.
The android market is a google app and should not have the problem discussed in the thread you linked to.
The problems in the thread relates to applications that have not yet been updated to support power saving features in resent android versions.
So your problem is not the same.
I did write this in my previous posts from may 25. but maybe it was unclear.
Sent from my Galaxy Nexus using Tapatalk 2
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Click to collapse
the problem is present in all apps, google one and non google one so you don't understood the problem

sblantipodi said:
the problem is present in all apps, google one and non google one so you don't understood the problem
Click to expand...
Click to collapse
Hey its no problem. It's only that this is the first time you state that you have problems with all apps.
I still don't understand why you have problems downloading apps though. I have tested and do not have this problem BUT I do have the problems with most other 3rd party apps.
Anyway there is a fix that probably will help you. Download "WIFI High performance' widget from the market. Add the widget and enable it. Good luck.
Sent from my Galaxy Nexus using Tapatalk 2

Baseband xmm power wakelock

Under kernel wake locks on Better Battery Stats I have a huge wake lock on the baseband.
Any ideas on how I can fix this? Thanks.
Sent from my HTC One X using xda app-developers app

IIRC you are too far away from your wifi router. Or you are in a bad reception area. For the first, get closer. For the second, not many options but try switching to 2g only.
See here for more
http://forum.xda-developers.com/showthread.php?p=15869868

Thanks for the reply. My WiFi is full strength and my reception is fine normally.
This happens even in 2G. It also happens with full bars, 3G.
Any ideas? I made this thread because I'm truly stuck.
Sent from my HTC One X using xda app-developers app

Having the same exact problems after I flashed ICJ/CM.
4 hrs on battery and baseband has kept the phone awake foe 1 hour.

Exactly same problem here! Only happens over Wifi but i have full signal. Would love to know what i can do, tried all the usual tips ie location etc.

shaw23 said:
Exactly same problem here! Only happens over Wifi but i have full signal. Would love to know what i can do, tried all the usual tips ie location etc.
Click to expand...
Click to collapse
Hi.
A bunch of us have this issue on the Nexus 7 3G. It happens when you use WiFi and has nothing to do with poor reception as it continues once you turn off WiFi. It also has nothing to do with 2g/3g as it happens to us without sim cards and on airplane mode. It's very annoying and causes huge drains in the battery!
Please star and comment (very important to star) here, and hopefully Google will notice - http://code.google.com/p/android/issues/detail?id=42993 .
Thanks!

Flashed CM 10.1 B6 yesterday and the problem seems to have disappeared. 50 mins of wakelock from baseband after 10 hrs.

what is this wakelock about?
I've lost 20% of battery overnight after charging.. and these wakelocks are preventing my One X from deep sleep? What can I do to stop this? Very frustrating..

are there any new workarounds for this problem? does this also happen on stock rom with stock kernel for you?

Same issue here on ICJ. Can't get more than maybe 1-1,5h of screen on time because of that stupid wakelock draining all the battery in sleep.

try flashing a different radio maybe it will help

anybody solved this problem? I tried the latest CM 10.2 nightlies (android 4.3) and got into this problem. I also have the same problem using stock 4.2.2.

dimi_dimi said:
anybody solved this problem? I tried the latest CM 10.2 nightlies (android 4.3) and got into this problem. I also have the same problem using stock 4.2.2.
Click to expand...
Click to collapse
it is fixed in this kernel (stock only) #010
http://forum.xda-developers.com/showthread.php?t=2586808

[Q] How do I prevent screen dimming at 5%?

Let me preface this by saying, I've searched the forums. There are topics on this for other phones, but I didn't see one for the Galaxy Note 4. I'm thinking settings are different on each phone, and to an extent, each carrier as well.
Also, I have the NEXT launcher installed on my phone, not sure if that makes a difference or not.
Basically, when using my phone, my phone will go dim at 5%, like others have reported on other phones. It has nothing to do with power saving mode, because that's off. I've checked. Is there a way I can prevent screen dimming at 5%?

I do not believe this is possible without a ROM.
Sent from my SM-N910V using XDA Free mobile app

put a new battery in

oneandroidnut said:
put a new battery in
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Click to collapse
Don't waste my time, please.. Thanks!

Try installing Lux Lite it worked for me.

420benz said:
Try installing Lux Lite it worked for me.
Click to expand...
Click to collapse
I have paid lux and it is disabled at 5% and switches to extremely dim

Battery drain on standby

Guys the battery on my s6 edge has been draining just by sitting here. Anyone else having this issue?
Sent from my SM-G925T using XDA Free mobile app

Yeah I've been seeing some serious battery drain. Way more than I'd expect with the battery size. Not sure what's going on.

Turning on your Wifi will kill your battery. I've had to restart my phone to make it stop sometimes. Makes me wonder if this is why the nexus skipped 5.0.2.

That may very well be the reason why nexus skipped it. Juding by the previous samsung record, it will be a while till we get 5.1
Sent from my SM-G925T using XDA Free mobile app

arcanexvi said:
Turning on your Wifi will kill your battery. I've had to restart my phone to make it stop sometimes. Makes me wonder if this is why the nexus skipped 5.0.2.
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Click to collapse
I had WiFi off all this time
Sent from my SM-G925T using XDA Free mobile app

flameinthefire said:
I had WiFi off all this time
Sent from my SM-G925T using XDA Free mobile app
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Did you have Wifi on at any point since your last restart? I've had to reboot the device to fix it.

Try turning off volte. That seems to help.
Sent from my SM-N910T using XDA Free mobile app

jamboxboy said:
Try turning off volte. That seems to help.
Sent from my SM-N910T using XDA Free mobile app
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Click to collapse
This is what i hate so much... you pay ridiculous amount of money to buy a "Smartphone" but then you have to turn all these features of to make it work efficiently.

I'm sure it's just a software bug on T-Mobile, but I was able to fix my issue by turning off WiFi, completely charging the phone, and restarting. WiFi is what causes it, not sure why though.

Where do I find Votle toggle option?

CCoR87 said:
Where do I find Votle toggle option?
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Click to collapse
Go to settings and search for "Phone" from there you can get into call settings.

google services for me is using the most battery, which doesn't make sense.

flameinthefire said:
Go to settings and search for "Phone" from there you can get into call settings.
Click to expand...
Click to collapse
Thanks will try and report back

ChristianBale said:
I'm sure it's just a software bug on T-Mobile, but I was able to fix my issue by turning off WiFi, completely charging the phone, and restarting. WiFi is what causes it, not sure why though.
Click to expand...
Click to collapse
Did you also disable the "wifi during sleep" that is used even if wifi is off? Can't remember where it is. Maybe advanced Wifi or in Location settings. Just curious. Thanks!

whittikins said:
Did you also disable the "wifi during sleep" that is used even if wifi is off? Can't remember where it is. Maybe advanced Wifi or in Location settings. Just curious. Thanks!
Click to expand...
Click to collapse
All you have to do is click the WiFi toggle. No other setting changes.

ChristianBale said:
All you have to do is click the WiFi toggle. No other setting changes.
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Click to collapse
Gotcha. I was curious but also sort of pointing out that even with Wifi turned off, the phone will still use Wifi for location unless you specifically disable that option. It may or may not make any difference at all, but since there's a bug then it's possible that ANY use of wifi is draining more than it should (even if it's just intermittently every few minutes for location checking).

whittikins said:
Gotcha. I was curious but also sort of pointing out that even with Wifi turned off, the phone will still use Wifi for location unless you specifically disable that option. It may or may not make any difference at all, but since there's a bug then it's possible that ANY use of wifi is draining more than it should (even if it's just intermittently every few minutes for location checking).
Click to expand...
Click to collapse
If the WiFi being used during sleep is causing any issues, the issue is small enough that it is not showing up on my battery usage page.

ChristianBale said:
If the WiFi being used during sleep is causing any issues, the issue is small enough that it is not showing up on my battery usage page.
Click to expand...
Click to collapse
Well for example. I have had Wifi turned off since before unplugging my phone this morning (8 hours ago). Despite that, it has been used for 29 minutes because I didn't have that option (use wifi for location even when it's off) disabled.
Because of this, I'm disabling that location feature as well for now. I bet that's about 30 minutes my phone has been held "awake" due to this stupid bug!

whittikins said:
Well for example. I have had Wifi turned off since before unplugging my phone this morning (8 hours ago). Despite that, it has been used for 29 minutes because I didn't have that option (use wifi for location even when it's off) disabled.
Because of this, I'm disabling that location feature as well for now. I bet that's about 30 minutes my phone has been held "awake" due to this stupid bug!
Click to expand...
Click to collapse
If it's causing issues for you then turn it off. For me it wasn't enough of an issue to disable WiFi during sleep.

CCoR87 said:
Where do I find Votle toggle option?
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Click to collapse
if you go to call options in the settings menu or you can go to the oem dialer and click on more in the upper right hand corner of the screen the option for it should be under setting in that drop down menu

[Q] Ridiculous Wifi Wakelock any way to fix?

it drains while on stand by and while using it, its really bad the kernel wake lock is Wlan_wake has about 360k wakelocks..... I also installed Gsam and the kernel is draining a heavy amount of the battery.
http://imgur.com/Kub4Hml

Have you disable always scan mode in Wi-Fi settings? I'm just trying it just Asus have recommended on forum but I think not change yet...

AlanRoot said:
Have you disable always scan mode in Wi-Fi settings? I'm just trying it just Asus have recommended on forum but I think not change yet...
Click to expand...
Click to collapse
yeah its disabled still didnt do anything

I also just started experiencing this after the most recent update.
It is absolutely annoying and it happens seemingly randomly.