So I was reading into the new screen flicker I've been having since 4.2, and the general consensus seems to be it's caused by WiFi. There's quite a few hardware mods attempting to fix it with tape, etc. I just found out what may really be causing it for some, 4.2's new WiFi power conservation settings.
*To turn it off, and stop the flicker, go to WiFi settings, clicking the ... in the top right, then go to advanced, and uncheck WiFi Optimization.*
I'm not sure how much, if at all this reduces battery life, but so far I've barely noticed it. Hope this helps a few people with 1 of the major problems/bugs in 4.2.
This fixed it for me
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This seems to have worked for me.
Thanks
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I have played with this setting numerous times and it hasn't fixed my issue on my 32. Flicker not so bad on my 16 even on 4.2.
I think some of the issues are still device specifii, my 32 not so good.
Related
Hey, my wifi always goes out and needs to be restarted while using ICS. at first it would happen like three times a day. now its a couple itmes an hour. it is very very very annoying. does anyone know a fix for this???
I don't have this problem, but do you have a wifi-sleep timer set up? Maybe an app is doing something?
No i dont. This issue was posted before in the threads but never had a solution. I always wipe EVERYTHING so i dont know why this happens with me.
Sent from my XT862 using Tapatalk
It's not just you. I get MANY wifi drops as well. I don't use it often, but when I do, I get a drop every 15 minutes or so. It happens very randomly: as in not when I'm loading a page, just randomly I'll see the logo go white then disappear.
My solution? A frustrated sigh and a switch of wifi on and off.
Sent from my DROID3 using xda premium
when using fullscreen apps and just even regular browsing its a b*tch. I tried the wifi fixer app but it didnt help. Im clueless
This has been an issue for me since the first ics rom. None since have fixed it or addressed it to my knowledge.
Sent from my DROID3 using XDA
I did no have this problem on the AOKP 4/12 build, but do have it now on the 4/30 build. No idea why.
The audio issue is also ALOT worse for me. most of my phone calls do the silence thing where there is no audio. Today it caused me to run into alot of trouble. i hope these issues get fixed soon. I think it was the bluetooth updates in the changelog that caused the problems to occur more. As they are supposed to be bluetooth related. Unforunately i might have to go back to gingerbread
I am able to use 1x data & WIFI on ICS Rom only. Neither WiFi or Data works with Stock ROM.
Before It used to work in Stock ROM, but now it does not. So I am sticking to CM9
I have this issue too but I use juice defender. I only really use it for 2 functions
1. Enable WiFi when I'm home (constantly on) and disable when I'm away
2. Turn off data at night from 1am to 6am
when i flashed ICS the effectiveness is shady. A lot of times when i turn on the screen wifi is disabled but will reenable after a few seconds during the day. also at night sometimes it won't disable until later than 1am and will randomly enable and disable at like 4 am or something. sucks because i'll randomly get a bunch of notifications for emails twitter etc. and it will wake me up.
I haven't seen this mentioned anywhere else, and its getting very frustrating. Last night my N7 shut down from low battery, after plugging in, it still wouldn't start up. I got it going again holding firm the power and volume button, but now it's constantly either freezing during use, slightly after startup or not turning on at all after gong to sleep.
I factory reset and that seems to have fixed the lockup issue but it's still getting stuck in deep sleep. The only thing I can guess is that it's the magnet feature in my case that is causing it. I've now had the case off for about an hour and had no lockups.
I've never felt the need to root this thing but I'm thinking of routing and fling to a custom 4.1.2 to see if this fixed it.
Has anyone heard of or had this issue before?
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More: its got nothing to do with the case, I've had multiple lockups over the past hour and now a isn't even get past the lock screen without it locking up. Only setting I changed was killing the auto brightness.
No one else is having issues like this?
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I have selected to never keep WiFi on during sleep yet now the tablet continues to run the WiFi as you can see in the pictures. This has forced me to use airplane mode when I am on the go because otherwise the tablet just keeps WiFi on and burns the battery extremely quick. This has been a problem since I updated to 4.2.1. I am not rooted completely stock. A solution would be great because this sucks right now. I have tried clearing the cache in recovery but that didn't solve the problem.
I'm running the latest Paranoidandroid ROM and thought that was the problem. I can't yet post to that developer forum so I was just waiting for the next beta.
I guess it's a problem with 4.2.1 then.
-PMS
jetguy35 said:
I have selected to never keep WiFi on during sleep yet now the tablet continues to run the WiFi as you can see in the pictures. This has forced me to use airplane mode when I am on the go because otherwise the tablet just keeps WiFi on and burns the battery extremely quick. This has been a problem since I updated to 4.2.1. I am not rooted completely stock. A solution would be great because this sucks right now. I have tried clearing the cache in recovery but that didn't solve the problem.
Click to expand...
Click to collapse
If you don't find a solution you may want to try DataEasyPro from the market. It kills both 3g and wifi as soon as the screen is off and then runs a user defined schedule to turn on 3g or wifi every now and the for a few seconds to keep you upto date with your social world. Works great. There is even a widget so you can turn off the schedule when you are downloading or updating from the play store.
https://play.google.com/store/apps/details?id=cb56.dataeasypro
PsychoMcSatan said:
I'm running the latest Paranoidandroid ROM and thought that was the problem. I can't yet post to that developer forum so I was just waiting for the next beta.
I guess it's a problem with 4.2.1 then.
-PMS
Click to expand...
Click to collapse
I think it is a 4.2.1 problem. Its hard to say how wide spread it is though because I have only seen a handful of posts about this issue though. To me, this issue is unacceptable. I should not have to enable/disable airplane mode to conserve battery. Especially when the previous version of android prior to the 4.2.1 update handled WiFi sleep settings without a problem. Hopefully a fix will be here soon. My tablet used to have superb battery life without me constantly monitoring it. Now I feel like I have to keep double checking that I remember to use airplane mode so that I don't go to use the tablet and find a nearly depleted battery.
Dmwitz said:
If you don't find a solution you may want to try DataEasyPro from the market. It kills both 3g and wifi as soon as the screen is off and then runs a user defined schedule to turn on 3g or wifi every now and the for a few seconds to keep you upto date with your social world. Works great. There is even a widget so you can turn off the schedule when you are downloading or updating from the play store.
https://play.google.com/store/apps/details?id=cb56.dataeasypro
Click to expand...
Click to collapse
This app shows as not compatible for me when I used the link.
jetguy35 said:
This app shows as not compatible for me when I used the link.
Click to expand...
Click to collapse
I recommend automate it, I have a couple of rules set to turn WiFi of with the screen (with a 5min delay), then turn Wi-Fi back on when the screen turns on. There's plenty of other settings and rules to play with as well.
https://play.google.com/store/apps/details?id=AutomateIt.mainPackage
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In had the same issue. I found Google maps to be the culprit.
It defaulted back to location reporting.
Check Google now sync, maps and currents.
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It's not google maps itself, it's the android location service. It's always collecting data even if your phone or tabscreen isn't on. This is pretty anoying since google only let you choose between agreeing to run the service in the background or not using it at all. Stupid! How about collecting data only when the device is in use?
Same here. There is a bug report on Google about it.
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Ah this is interesting; as last night my battery was on 53% and I am sure I charged it fully previously...... Am on stock too but have rooted.
Might just switch the tablet off all the time for the time being.
I'm on stock rooted 4.2.1 and mine is fine. Strange.
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RKight said:
I'm on stock rooted 4.2.1 and mine is fine. Strange.
View attachment 1552034
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Click to collapse
WiFi turns off here also, which means its working as intended, what is strange is is it not working for some people, I'm also on stock rooted 4.2.1.
what is the OP using? Are there any apps installed/running on the OPs device that can keep the WiFi alive?
Sent from my Nexus 7
jersonf said:
what is the OP using? Are there any apps installed/running on the OPs device that can keep the WiFi alive?
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Click to collapse
I highly recommend using an app called Better Battery Stats. You can find the free version here on XDA. It'll tell you if there is an app causing a wakelock. I used it to troubleshoot my Rezound and I'm getting a solid 4-5 hours of screen on time with the extended battery on that because it helped me lock down the apps that were killing my battery.
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I'm stock rooted and mines don't turn off neither.
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Hmmm. Just checked PA beta 7 and it's doing it too. Wifi on always.
A custom kernel would probably fix that.
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RKight said:
I highly recommend using an app called Better Battery Stats. You can find the free version here on XDA. It'll tell you if there is an app causing a wakelock. I used it to troubleshoot my Rezound and I'm getting a solid 4-5 hours of screen on time with the extended battery on that because it helped me lock down the apps that were killing my battery.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Although my wifi is turning off I give thanks for pointing me in the direction of this app.
http://forum.xda-developers.com/showthread.php?t=1179809
Sent from my Nexus 7
I was having the wifi on issue as well. Just bought my N7, stock 4.2.1 and not rooted. I followed the tip in point four of this post, which details a simple set up using Tasker, where the unit turns the wifi on and off after the screen turns on or off respectively. The reason for the 10 second delay as is detailed in the link, is to allow for the turning on of your N7 to check the time or other reasons, and then quickly turn it off without the wifi on task being activated.
the screenshot below shows my wifi being stuck on while in sleep mode, even with it set to be never on during sleep in the settings, and the change in behavior once the 2 Tasker profiles we set up.
Cheers
Those of you having issues, have you tried the "only when plugged in" setting? Not sure if it would really matter but that's what I use and mine turns on and off just fine.
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RKight said:
...have you tried the "only when plugged in" setting?
Click to expand...
Click to collapse
Testing that now. Turned off Tasker, and set wifi to the "only when plugged in" setting. It's only been about 30 minutes, but so far it looks like it's behaving the same as before, as in keeping wifi on while in sleep. I'll Let it sleep for a few hours and see what the chart shows.
Cheers
EDIT: So I let my N7 sit for about an hour after switching the above mentioned settings, and you can see in the screenshot below that the wifi is staying on while the unit is not awake. I've set my Tasker profiles to control the wifi once again.
I know it may be fixed by a factory reset, but frankly I'm more than happy with the way Tasker handles the issue.
Cheers
so 6 months later, I am still getting this problem. However it seems only to be with the last update. The tasker method seems to be working well though.
Hi,
I've been having some really weird Wifi behaviour since 4.2.1.
I'm using stock Rom, rooted, and I have Wifi sleep policy set to "only when charging", so it should go to sleep when idle.
I think something is waking it up, not sure what. And it's struggling to go back to sleep (or at least this is what it looks like).
Attached is the really weird graph of the battery stats, you can see an example of how Wifi is switching on/off like crazy. Also attached BBS logs from idle. Any help would be appreciated.
Thanks
Sounds like maybe a rogue app doing something to wake,maybe a sync issue.Try shutting off auto sync and see if it helps.
Sent from my SGH-I927 using xda app-developers app
So far no luck, but this was my assumption too. Any way to track down the rogue app?
Id maybe start with obvious ones like facebook and apps that have wifi permissions.I cant really say as I dont know what you using.Also if you are using an email client that accesses wifi to sync.
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I've found Wifi doesn't turn off for 5-15 minutes and sometimes NEVER since ICS. I personally use Tasker to turn off wifi at screen off, but Green Power or Setting Profiles Lite are two other options to do this, and actually do it.
IMO, if your device is going into deep sleep, it should be fine for battery and otherwise.
As far as the Wi-Fi behaving that way, look at Google maps, latitude and location reporting. They're the problems for me and I'm working on them as well.
Try diagnostic apps which tell you which app is using your Wi-Fi and check it out..
Sent from my Nexus 7
Open any app eg. dialer.
Press home button. There is a slight delay (the amount of delay seems to vary at random) and then it closes. Sometimes it's not noticeable, sometimes there's a half a second delay.
When it does happen, you can see the home button light up animation stuttering too.
Compare this with the back button.
Open app again
Press back button. It closes instantly every time.
This is repeatable, and happens with every app.
Edit:
There also seems to be added delay to the multitasking button.
When pressed at the home screen, it's there's a small amount of delay. When pressed inside an app, there's a one second delay.
Using ART runtime seems to fix the lag in home and app switcher buttons, though 4.3 did not have the lag and it was dalvik, so not sure what that means.
Pulling down the notification on lockscreen also lags. But I do have the transparent system bars mod so it could be that.
doesnt happen on my phone
hmm.. happens with me too. stock 4.4 with TWRP
You overreacting.
Wysłane z mojego Nexus 4 przy użyciu Tapatalka
I see what he means.. I wouldn't call it lag, just delayed.
I did a screen record of it. It's so minimal I would never have noticed it until my attention was called to it
I have animations disabled
Not to sound rude but... this is a complaint? I get that the transition animation might look like crap and a tad choppy. In that demo at least, it does. But come on, just turn the animations off if they bother you. I've got an iPhone 5S, which is by most accounts the smoothest mobile experience, and clicking the home button takes the same amount of time (probably longer) because of the stupid fade in/out stuff.
If your complaint is a freeze up, then that's valid. But as an aside, I'm with you in that these animations are getting borderline cumbersome and stupid. The "lag" you see is Google's need to utilize these things.They used to be cool, like the first 1,000 times I saw them. Now they're just a lame hindrance to opening an app.
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Actually has nothing to do with transition animations.
It is the delay with the home button press being registered, before the animation even starts.
And actually in the video recording above, animations are off.
This is a regression. In 4.3 the home button was much more responsive, so yes it's a complaint. Actually, not really. I'm just putting the information out, and also want to see if others are experiencing the same.
I'd love it I'd you could stop watch these findings to display this massive regression.
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monkor said:
I'd love it I'd you could stop watch these findings to display this massive regression.
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Click to expand...
Click to collapse
If you can't notice the difference then more power to you. Stop posting in here.
Not to sound rude but... you're complaining about a complaint?
Out.
I was actually just hoping you would get out a stopwatch and show the difference with some stats...I mean maybe it is an issue.
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I am using factory stock with AOSP launcher (launcher3.apk from CM11) and ART enabled, don't have that problem, its very responsive.
Don't watch this if you suffer from epilepsy.
I guess sometimes there are 100ms delay, but its not abnormal. Delays tend to be because its trying to launch a new app.
I just tried Google Launcher and its not an issue either.
This should go without saying but... I'll throw it out there anyway. Because... Yeah...
For anyone watching the screen record I made.. You have to remember the overhead encoding video and writing to the Sdcard will have on the end result. ie: Performance in video may not be a complete accurate representation of real world use.
/I just wanted to use screen record and this looked like a opportune time.
I've noticed the same thing on both 4.3 and 4.4. Captured a video of mine and streamed it to Twitch since it's one of the few places that accepts and plays back at 60 FPS: twitch.tv/caiman86/b/479853664 (won't let me linkify it since I have too few posts)
Sometimes the home button is perfectly responsive and sometimes there's that strange hitch and delay when going home. The video showcases this fairly well.
morgante said:
I've noticed the same thing on both 4.3 and 4.4. Captured a video of mine and streamed it to Twitch since it's one of the few places that accepts and plays back at 60 FPS: twitch.tv/caiman86/b/479853664 (won't let me linkify it since I have too few posts)
Sometimes the home button is perfectly responsive and sometimes there's that strange hitch and delay when going home. The video showcases this fairly well.
Click to expand...
Click to collapse
That video shows the issue pretty clearly. Link (since you can't post a direct link)
Though I can't say I remember having this issue on 4.3. I could be wrong. My girlfriend has a Nexus 4 still on 4.3, so when I can get my hands on it (probably tomorrow), I'll confirm.
But even if it was in 4.3 and not just a new 4.4 issue, I still think it's worth reporting.
Also I don't actually know if this is specific to the Nexus 4. If anyone has a Nexus 7 or 10, could you please test if it happens.
Thanks.
Have you ever had a go on an s3? I had a go on my dad's and there's a huge wait after pressing home and anything happening, although admittedly this is because you can double tap home to open something (s-voice I think it was)
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On S3 you must disable option (double home button klick action) in Accessibility.
On the iPhone it's almost instant whereas on Kitkat it's quite laggy.
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wilsonlam97 said:
On the iPhone it's almost instant whereas on Kitkat it's quite laggy.
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Click to expand...
Click to collapse
Switch to ART and see the lag gone.
Tom540 said:
Have you ever had a go on an s3? I had a go on my dad's and there's a huge wait after pressing home and anything happening, although admittedly this is because you can double tap home to open something (s-voice I think it was)
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Click to expand...
Click to collapse
Yep, it's because of the double tap command, not the same issue as this.
You are right. The delay is quite noticeable.