Develop Bugs

[Q] Galaxy Nexus wakes up itself from sleep mode

Hi everyone,
I have been having a very annoying problem with my Galaxy Nexus during the past few days. When it enters to sleep mode (after 15 seconds without activity or when I push the power button) it wakes up itself again after 2 to 10 seconds and does not stay into sleep mode: the lock screen is displayed during 15 seconds before a new sleep mode/'wake up state' loop starts again.
It doesn't happen all the time but it does often enough to waste around 8% of battery every hour without me touching my phone.
I searched the forum for solutions and found in other threads that an application could be the source of the problem. I uninstalled every apps but the problem remained. I did a factory reset without installing any app or update after but the problem also remained. I also tried using only Wi-Fi or only 3G for data or switching to flight mode, but it didn't change anything.
Other solutions suggested on other threads, to disable GPS. It did it too, without more success.
I noticed that the problem only occurs when the phone is unplugged. It never happens during loading.
Have you any ideas that could help me to solve the problem?
Thanks a lot in advance,
Julien

Don't know if it helps but I made some screenshoot of BetterBattery Stats results.

Galaxy Nexus - The 'Waking Up' Problem
I love my Galaxy Nexus (I would like to thank Google for giving them away during the I/O 2012). Jelly Bean (the last version of Android) is simply a blast: it is smoother, snappier, sexier, you name it.
As much as I love JB, I still need to play with my devices, and what a better way to play with an Android phone than to root it. After testing a few ROMs, I ended up using Codename Android in combination with Lean Kernel. I advise you guys to have a look at it, it packages an insane number of customization and parameters that will make your phone even better!
The drawback when you hack around with your phone, is that your start feeling guilty when it starts doing random stuff, such as waking up randomly : I would put it in sleep mode (using the power button), and a few seconds (minutes if I happened to be lucky), the phone would wake up on its own, sometimes indicating it was charging when obviously no cable was plugged…
From there started the usual bug chase that many of us know: backup, factory reset, and a complete reinstallation. Unfortunately, in that particular case it would not change a thing and the problem was occuring even more often. It was becoming obvious that my problem came from the hardware…
The usb connector at the bottom of the Galaxy Nexus has a bad habit of bending downward after some time (it varies, depending of your usage). The solution is thus to take a small knife and pushing it upward so it does not touch the bottom metallic plate. Et voila! Your phone will stop waking up by itself, and your frustration will go away with it.
I guess if a lesson can be learned from that experience, it is that the obvious answer is not often the right one; you should also keep a small knife not too far from your Galaxy Nexus.
It´s work fine to me...

[Q] random reboots when waking g pad -- any ideas?

MY v500 G Pad is experiencing a weird issue where immediately after waking the device (via knock-on or power button), my lock screen will appear as expected, but then almost immediately the screen will become unresponsive (I'm unable to swipe my pattern to unlock) and the display will dim in increments until black. Once the screen is off, I have to hold down the power button to get the device to reboot.
The changes I have made that seems to coincide with this issue are:
1. rooted the device using the .bat script method
2. installed TWRP recovery
3. switched to Nova Launcher
It's important to note, I have not rom'd my device, and am still running the stock rom.
This is happening one out of every 15 or so times I unlock my device. I have switched from pattern to password unlock to see if it's an issue related specifically to the pattern lock screen (although I have used pattern unlock since the day I got the device).
Any ideas would be greatly appreciated!
Thanks

longboarder543 said:
MY v500 G Pad is experiencing a weird issue where immediately after waking the device (via knock-on or power button), my lock screen will appear as expected, but then almost immediately the screen will become unresponsive (I'm unable to swipe my pattern to unlock) and the display will dim in increments until black. Once the screen is off, I have to hold down the power button to get the device to reboot.
The changes I have made that seems to coincide with this issue are:
1. rooted the device using the .bat script method
2. installed TWRP recovery
3. switched to Nova Launcher
It's important to note, I have not rom'd my device, and am still running the stock rom.
This is happening one out of every 15 or so times I unlock my device. I have switched from pattern to password unlock to see if it's an issue related specifically to the pattern lock screen (although I have used pattern unlock since the day I got the device).
Any ideas would be greatly appreciated!
Thanks
Click to expand...
Click to collapse
I don't have that issue and I'm stock , rooted and with twrp you should probably check it's either some settings causing this or more likely an app you installed.
Sent from my SGH-T889 using Tapatalk 2

Thanks for the info Naruto. I think I'm going to remove Nova launcher and see if the problem goes away.
Meanwhile, the problem just happened again, but manifested itself slightly differently. Basically, just a few minutes ago when I pushed the power button to wake the device, nothing happend for ~ 10 seconds. Finally, the lock screen came up, but I got an error message "Sorry! Process system isn't responding. Do you want to close it?" Options were "Wait" and "OK". I selected OK and was taken to the lock screen like normal.
What do you guys think?

I had root from dalingrin and twrp on stock rom for about 2 months and i never experienced this issue you report. The lock screen is related to the launcher and as you use nova launcher i d say that it is most probably caused by it.

Thanks for all the help guys. I'm not ready to say that the problem is fixed quite yet, but after switching back to the stock launcher and rebooting, I have locked and unlocked the tablet about 50 times without issue. Looks like the problem was indeed Nova Launcher. That's kind of a bummer because I love Nova, and I have it setup exactly like my phone and it works great for me.

Maybe you could try to re download nova again that's what I'm using and I have no issues. Maybe it was a setting you had checked inside of its settings ?
Sent from my SGH-T889 using Tapatalk 2

longboarder543 said:
MY v500 G Pad is experiencing a weird issue where immediately after waking the device (via knock-on or power button), my lock screen will appear as expected, but then almost immediately the screen will become unresponsive (I'm unable to swipe my pattern to unlock) and the display will dim in increments until black. Once the screen is off, I have to hold down the power button to get the device to reboot.
Click to expand...
Click to collapse
I got the same thing on a completely unmodified G Pad last weekend. It happened once, worked ok for a few unlocks, then happened a second time. Each time I had to hold the power button down to force a reboot. It's hasn't happened before or since, so I've no idea what caused it, but I did notice something that might or might not be relevant - I happened to be looking at the battery graph later that day, and noticed that at the time of the forced reboots, the battery appeared to drop instantly by about 10%. There was a break in the graph - no vertical line showing the drop, the line just ended, then started off again immediately 10% lower down. If you get the same issue again, it would be interesting to see if your battery graph behaved in the same way.

I had this problem with stock rom changed to Mahdi
No reboots yet.
By the way, I saw a review video on YouTube and the guy was showing knock knock (spell?) and the g pad just crashed and rebooted.
Edit:
I have an LG G2, best phone ever never crashed no lag and a fast phone with great LCD maybe the best mobile screen I have ever seen.
Sent from my LG-V500 using xda app-developers app

Ok, so I don't think the problem was nova launcher after all. After switching back to the stock launcher, the tablet worked great for several hours, but eventually the problem started happening again. At that point, I rebooted into recovery, cleared cache and dalvik, then fixed permissions, and rebooted. Fingers crossed, but the issue hasn't returned once since, and we're going on 18 hours. I've even been using nova launcher without issue. Still not sure what the issue is, but at least for me, clearing cache and fixing permissions has worked so far.
Sent from my LG-V500 using Tapatalk

There is a known issue with 4.2+ of rebooting if you have third party widgets (Not sure which) on the lock screen. Do you have any on there?
http://blogs.computerworld.com/android/21427/android-42-random-reboots

stevessvt said:
There is a known issue with 4.2+ of rebooting if you have third party widgets (Not sure which) on the lock screen. Do you have any on there?
http://blogs.computerworld.com/android/21427/android-42-random-reboots
Click to expand...
Click to collapse
Thanks for that -- unfortunately I don't have any third-party widgets on the lock screen.

Victoria75001 said:
I got the same thing on a completely unmodified G Pad last weekend. It happened once, worked ok for a few unlocks, then happened a second time. Each time I had to hold the power button down to force a reboot. It's hasn't happened before or since, so I've no idea what caused it, but I did notice something that might or might not be relevant - I happened to be looking at the battery graph later that day, and noticed that at the time of the forced reboots, the battery appeared to drop instantly by about 10%. There was a break in the graph - no vertical line showing the drop, the line just ended, then started off again immediately 10% lower down. If you get the same issue again, it would be interesting to see if your battery graph behaved in the same way.
Click to expand...
Click to collapse
When I get home I'll check my battery stats to see if similar happened on mine

HTC M8 screen randomly turning off

Dear Friends,
After updating my htc one m8 to Android 5.0.2 and resetting the phone as needed, i am facing the problem of switching off the screen randomly while i am using it. can anyone help me.
appreciate the support.
thnx

hogrsq said:
Dear Friends,
After updating my htc one m8 to Android 5.0.2 and resetting the phone as needed, i am facing the problem of switching off the screen randomly while i am using it. can anyone help me.
appreciate the support.
thnx
Click to expand...
Click to collapse
Have you checked the screen timeout settings in settings/display & gestures? That's the most likely possibility.

It's not a timeout problem for me.
My timeout settings are at one minute or more and the screen will blank on me in the middle of active use. If I tap the power button repeatedly (the number of times required varies, but it takes fewer if the taps are spaced by a second or so), the screen will come back on, but more often than not, the screen will black again immediately (i.e. in the middle of the unlock process). The screen blacks, but remains responsive to touch. If I tap where a button was before pressing the power button, when I can see again, the app (or launcher screen) has changed accordingly. The problem has gotten more frequent, to the point that my phone is almost unusable as of yesterday afternoon.
I have tried a factory reset as of this morning, which didn't remove the problem. My battery seems to be OK. I'm still getting roughly the same battery life I've always had. I'm stuck, and I'm not finding abundant references to it anywhere, so any help would be appreciated.
A brief history of my interaction with this problem: I bought the phone used about 3 months ago. about 3 weeks in, the blanking problem started to appear, but only in landscape mode apps (games). This was not frequent until about a month ago, when it started becoming more frequent and affecting everyday activity, not just games. About 3 weeks ago, I started having problems with image persistence (which may not be relevant, but I'm not sure either way). Yesterday afternoon it started blanking repeatedly. Restarting the phone had helped in the past, but not this time. Leaving the phone shut down for 2-3 hours also failed.
I am getting very frustrated, and I really like this phone.
Please help, if anyone can.
Thanks very much.

Pixel not waking up from sleep

Anyone else having issues with the Pixel not waking up from sleep. This happens to me seemingly randomly, at least I have not been able to pinpoint what is causing it. I have to use the power button and volume rocker to hard reboot it. This is my second unit that has done this, and Google just wants to replace it again.
I made a quick video of it:
https://www.youtube.com/watch?v=97iho4sHAlc

I have exactly the same problem ...
to boot, I press 10 seconds repeatedly on the power button.
I already had the problem of keyboard update ...

I thought this was solved but sadly it's still around. Suffered from it a few days ago after doing a factory reset about a week ago.

Ves said:
I thought this was solved but sadly it's still around. Suffered from it a few days ago after doing a factory reset about a week ago.
Click to expand...
Click to collapse
Same here, I finally received the Feb update on my replacement Pixel and thought it was solved... nope.
I bought the Pixel for quick work trips so I did not have to bring my laptop. I take allot of flights in the morning and return that afternoon/evening. The Pixel was going to be used for Presentations, and notes. It is super frustrating when I have the tablet all setup to present and I have to mess with it to get it to turn back on. This thing has way to many problems for a premium tab, and seems like Google has not dedicated the appropriate resources to supporting it (support/dev).

Ah the old "Sleep of Death" it seems to have plagued (mostly) tablets for years. I've had it happen on my Asus Transformer T101 years ago and it also happened on my Samsung Galaxy Tab S 10.5". I haven't had it happen yet in the months I've owned the Pixel, but I have had some odd issues where I press the power button to turn it on and it shows the unlocked boot warning for literally a second and then turns off/reboots, when it does that I have to hold the power button for like 10 seconds to force a reboot and then it boots up fine.
Sent from my Pixel C using Tapatalk

I use the pattern to unlock my device. For years on my Asus TF201 (which had occasional severe performance problems), I would occasionally turn it on, get nothing for several seconds, and then get the pattern unlock screen for a fraction of a second, and then it would sleep. Sometimes if I drew the pattern really fast it would unlock it. Othertimes, I think I just rebooted it.
With the Google Pixel C, I (perhaps foolishly) continued the pattern unlock approach. It usually works fine. But occasionally, I will get the pattern unlock screen soon enough, enter the pattern, and it will do nothing for several seconds (just frozen on the pattern screen with my drawn pattern) and then go to sleep. If I try this repeatedly, sometimes once it will actually let me in. Otherwise I reboot and try again.

buurmas said:
I use the pattern to unlock my device. For years on my Asus TF201 (which had occasional severe performance problems), I would occasionally turn it on, get nothing for several seconds, and then get the pattern unlock screen for a fraction of a second, and then it would sleep. Sometimes if I drew the pattern really fast it would unlock it. Othertimes, I think I just rebooted it.
With the Google Pixel C, I (perhaps foolishly) continued the pattern unlock approach. It usually works fine. But occasionally, I will get the pattern unlock screen soon enough, enter the pattern, and it will do nothing for several seconds (just frozen on the pattern screen with my drawn pattern) and then go to sleep. If I try this repeatedly, sometimes once it will actually let me in. Otherwise I reboot and try again.
Click to expand...
Click to collapse
I do not use the pattern lock, I do secure it with a passcode though. My issue does not seem to be related to the security though as it does it at random times and never display the login prompt.

still having both random reboots and screen blackouts. This is a shame google will not acknowledge the problem and say they're fixing it. It only makes me believe that they know about it yet CANT fix it. Like its a hardware issue more than a software one. At least if they would say "we are aware of the issue and working on a fix" or "we were working on a fix but now working just a big OS update instead" Id feel like I wasnt ripped off by them. I mean I have EVERY nexus device box still displayed in my hobby room at my house. Im a huge fan but this is really bad.

Joined beta N program, hopefully this issue is resolved on the Pixel C.

Unresponsive touch screen

Hi there, first of all I've seen some other threads which kind of have the same problem but not quite. So here is my problem my touch screen isn't responding most of the time, it started happening like a week ago when it froze while trying to send a picture in messenger, after 1-2 reboots it started working again but after that the same thing happened while I was typing in messenger, so I thought it might be software problem and made hard reset and installed new stock android(that didn't help). The last couple of days most of the time it's not working and I'm using it with a mouse, but there are periods when it works for some time. I've entered the hidden menu(without updating the touch firmware because I saw that it might kill it for good) to try and test it and had 2 different results
- The touch screen firmware version on my phone is -1
- And the one from the photos that I've attached(obviously during this one it actually worked for a couple of minutes)
Something else I've noticed while the touch isn't working when I turn off the screen from the power button first it dims the light for 2 seconds before really turning off.
Other things that I've tried are changing kernel, opening the back of the phone and reconnecting the screen to the motherboard(which helped the first time and it worked for 1 day or so but doesn't help since then) .
There is one more strange thing for some time now may be 3-4 months the phone has problems connecting to WiFi)
And one last thing after the screen problem the phone started booting quite slow some times and showing "Process System Not Responding'"
The phone is running on Stock V30b MM and hasn't been dropped for a long time
The problem is that I don't know is it software problem, screen problem or motherboard so any Ideas will be appreciated.