[Q] Apps Close - Nexus 7 Q&A, Help & Troubleshooting

Hey guys I've been having a major problem with most apps and games on N& running P.A.C. This problem plagued my device when I was running PA as well. The main issue rests with apps closing by itself after a few minutes,as if the device had run out of memory even on a fresh boot. For example I would be in the middle of note taking on Evernote and few minutes in it would just close. Same goes for YouTube and ALL games. Funny, Lightning Browser seems to be the only one that stays in memory. I'm running it on stock kernel Android as well so tracing the root cause has been difficult.
Any advice would be great since I'm in the end of my ropes!

fliparsenal said:
Hey guys I've been having a major problem with most apps and games on N& running P.A.C. This problem plagued my device when I was running PA as well. The main issue rests with apps closing by itself after a few minutes,as if the device had run out of memory even on a fresh boot. For example I would be in the middle of note taking on Evernote and few minutes in it would just close. Same goes for YouTube and ALL games. Funny, Lightning Browser seems to be the only one that stays in memory. I'm running it on stock kernel Android as well so tracing the root cause has been difficult.
Any advice would be great since I'm in the end of my ropes!
Click to expand...
Click to collapse
Start by flashing stock and see if it still does it. If not, try a different rom. If it does it on stock....then you may have screen issues...like phantom touches of your home button?? Or something.
Try whatever the nexus 7's version of a log cat is and see what it says when it happens.
Sent from my cellular telephone

Related

[Q] why the heck are my programs exiting?!

Okay, this is getting ridiculous and im getting pissed. My N10 has been working without a hitch (and without a camera flash too) for the past 6 or 7 months since i got it but one thing that is happening now is getting very annoying is it just exits out of apps when the app is trying to load something...not exiting when the app itself is loading, but when the app is busy loading another task. Man im getting mad...so for example im on facebook the interface loads fine but when i start browsing pictures and an image is taking a few seconds to load and BAM, the program closes, another example i have the AOSP browser opened and im browsing the web, I type in a web address it starts to load, and BAM, closes, playing candy crush, it plays fine and then i try to ask for help from facebook and once it starts loading my friends and it does it again.i could go on and on. its happening on game apps, google apps its pissing me the heck off and it just started about a month ago. I have tried several roms thinking it was a memory leak somewhere or something for that matter and no luck. Ive tried trinity and KT kernels thinking the stock kernel was the culprit and still no dice. Ive even gone as far as to wipe out the whole device, everything to the fullest system format and reinstall a new stock image via wugs toolkit...still happening. Can anyone tell me why this is happening and is there a fix for this? Is anyone going through this crap too? The Dev forums have been quite lately but im sure this tablet still has very active users who can help because this is getting old. BTW I am running Purity latest rom with Franco kernel r12 just in case you need to know
Does this happen after you watch videos? For me, that's the only time..apparently the surface flinger eats up the RAM and hardly 20-30MB is left for other apps. So I guess the system starts force closing the apps. I don't think we have a permanent fix for this yet. However, the workaround I have applied is I disabled Chrome which is another RAM eater and since then this random force closing and even the random restarts problem seems to have been alleviated!
Another simpler option is to restart the tab whenever you feel it is starting to operate with a lag. Takes hardly 30 seconds And hope for Google to release the fix to the surface flinger issue with 4.3!
Sent from my Nexus 10 using xda app-developers app

Memory leak hasn't been fixed in 4.3

The surfaceflinger seems to have indeed been fixed, but there is still a memory leak in the system, which I now encountered it for the 2nd time. I wanted to make screenshots, but just after I made the 2nd one, the tablet soft rebooted. It didn't freeze, it didn't show any google logo, it went directly to the boot animation and then the tablet booted. This seems to have been fixed it, unlike the previous surface flinger issue where you needed a normal reboot.
Anyway, in the 1st screenshot you can see 44h of uptime, in the 2nd one I took a pic in quick system info which displayed 198mb of free ram, just after I cleared all the processes, but then the tablet immediately soft rebooted and apparently didn't save the screenshot.
Running "ps su" in terminal emulator showed 56 rss, if I typed "su" 1st and then "ps su" there were 2 rows, one with 56 rss and the second with 116 rss, so the surface flinger has apparently been fixed.
Running factory image 4.3, rooted, deodexed, stock kernel. Has anyone experienced this issue on 4.3 so far?
LE: Oh I forgot to attach the first screenshot, sorry. Anyway it's a pic from cpu spy, which displayed 44h of uptime, so it's not that important.
I had just nearly the same phenomen. But my n10 softrebooted when I was starting to examine the process table. I just had found surfaceflinger, so I'm sure it was not that process, but sadly I hadn't found the mem-eater, when the colored X appeared.
I had done a dirty flash from aokp-pub, so I am not sure to blame android-4.3. But mem-leaks stick like sh** on a shoesole, so I'm sure, if it does not result from dirty flashing, we will hear soon from a new memory leak... (hopefully in some opensource part - cm and aokp team are faster in n10 support then google...)
I haven't had a single reboot since I flashed 4.3. My uptime is up into the 90+ hours range, and it would be higher if i hadn't had to reboot to install root, Adaway and the AOSP browser. I mainly use the tablet to browse the internet (using the AOSP browser) and reddit (via reddit news app), plus some youtube videos (using the youtube app) occasionally. I rarely play games, though I have played a little Real Racing 3 since the last bootup.
My advice is to download the stock rom from the google developers website, and completely wipe the tablet clean via the "flash-all" script. Re-install only the bare minimum apps, and see if the issues persist.
I have 4.3 from Friday. No restarts at all, but I noticed two times strange behaviour. Tablet was soo slow, every action was soo laggy. I had to restart it. Maybe its apex fault. Im not sure
Amiga4ever123 said:
I have 4.3 from Friday. No restarts at all, but I noticed two times strange behaviour. Tablet was soo slow, every action was soo laggy. I had to restart it. Maybe its apex fault. Im not sure
Click to expand...
Click to collapse
Same here on Nova
Sent from my Nexus 10 using Tapatalk HD
Ladies and gentlemen, I present you the "suspect": Google's Chrome, the all time crap browser.
I also mostly use the AOSP browser and occasionally Opera for some downloads that I can't do with the stock browser. I installed Chrome a few days ago to see how it works in 4.3 and it does indeed work better, but the 1st memory leak I encountered happened the day I used chrome, I'm sure of it. I wasn't much impressed with it so I went back to AOSP browser and everything worked fine, then I decided to give it another try: bam, memory leak again, yesterday, the day I used chrome again.
Also, I read some comments on the forums about people having reboots on 4.3, WHILE using chrome.
In fact, in 4.2.2 while we had the surface flinger problems, I remember that chrome was the main cause.
I am back to using AOSP and Opera and everything is working superbly.
Amiga4ever123 said:
I have 4.3 from Friday. No restarts at all, but I noticed two times strange behaviour. Tablet was soo slow, every action was soo laggy. I had to restart it. Maybe its apex fault. Im not sure
Click to expand...
Click to collapse
malikalhaji said:
Same here on Nova
Sent from my Nexus 10 using Tapatalk HD
Click to expand...
Click to collapse
Are you rooted? If so, there is a bug in SuperSU V1.41 which causes CPU usage to sit at 100%...
Ref:
http://www.androidpolice.com/2013/0...persu-update-to-v1-43-to-fix-the-100-cpu-bug/
Yep rooted. My Chrome is disabled. I hope update supersu will solve the problem with cpu usage. Thx for info about it
stiggy2012 said:
Are you rooted? If so, there is a bug in SuperSU V1.41 which causes CPU usage to sit at 100%...
Ref:
http://www.androidpolice.com/2013/0...persu-update-to-v1-43-to-fix-the-100-cpu-bug/
Click to expand...
Click to collapse
Same here, might be SU fault, but I was using 1.43 when the tablet starts to lag heavily without rebooting. Couldn't find what the culprit was, CPU usage was normal, there was plenty of ram, even tried killing all background apps and services with no luck. Not even a hot boot could fix the lag.
Since then I've updated to SU1.5 so we'll see how that goes.
Sent from my Nexus 10 using Tapatalk 4 Beta
I got a reboot last night. Opened Google Now and it went to the bootanimation. Stock 4.3 with the Flaming Monkey Kernel, SU 1.45. It was my first reboot since January, when I went to custom ROMs. Went back to stock kernel, we'll see if that helps. Also, what AOSP Browser are you guys using? The one from the Installer from the play store closes every 5-10 minutes, and the apk ripped from CM 10.1.1.0 crashes on start-up...And I stopped using Chrome in January, and never had a reboot until Chrome was installed on 4.3. Coincidence? Probably not...
Sent from my MB855 using xda app-developers app
Never had any issues even on 4.2.2 with any sort of memory leak. Was able to go at least 5 days without any reboots and that's with using the chrome browser. I haven't used 4.3 long enough to post my findings with it but so far after 3 days it seems to be about the same. The only thing I can think of is that I bought my Nexus 10 in May so I don't know if a newer hardware version would make any difference.
Also, those of you with random reboots have you tried updating your boot loader yet? Not sure if or how it would make any difference but it's worth a shot.
Sent from my Nexus 10 using Tapatalk HD

[Q] Phone app starts in background and slows down phone

Hi,
I'm running the 27082014 cm nighlty build on my i9505 and encounter following problem.
When working normaly the phone starts to slow down and act weird.
Scrolling in apps is lagging, yt stops playing and loading videos and video players are playing the last second or so in a loop.
It's like the phone has put the last method it called in a loop.
When opening the multi-tasking window the phone app is listed even though I didn't use it. I can't open it, it just returns to the home screen.
The phone app is shown black. It is difficult to even enter the multi-tasking window because it is leaving it immediatly.
I have the problem since a while.
In general I am just installing the new rom without a full wipe.
But even after a full wipe the problem was there. I don't know if it would be there before restoring my apps with TB.
I feel like some app is causing it but I don't have any suspicious apps installed.
I thought I ask here if someone knows a possible solution before I put the effort in a new rom and intensive testing.
Thank you
You already gave the answer to your own question

I9505 lollipop laggy

I have an I9505 running lollipop and struggling to address intermittent lag.
Broadly speaking the phone starts off working well, snappy.. but after a while can start to lag. By this I mean a press on the home button may result in a 20s+ delay for the task manager to come up. Switching a task may be slow, the keyboard may take 10-20s to appear, the screen may be mostly blank for a while. It doesn't crash, and does "come back" but it's nearly unusable. Usually once switched to a task and settled down scrolling is ok. then it may work just fine, snappy for a while
I don't see oddly high figures in the various stats I can see - cpu time isn't excessive. memory is harder to interpret and at times I do see kswapd busy just after a wakeup.. so my suspicion is it's a memory leak but one I can't prove
I've tried alternative kernels - hulk, imperium, and they don't appear to help matters at all.
The lollipop build was clean & Current firmware is I9505XXUHOD7, BTU
I am rooted and have progressively disabled various packages I don't use in an effort to lighten the environment
I've disabled animations (a cause of memory leaks in 5.0.1, though supposedly not affecting samsung touchwiz)
I am a software engineer and very familar with better battery stats, gsam, even a quick peruse through dumps via adb yet still haven't got to the bottom of my issue. I'm also very aware there's little in the way of solid facts to help debug a problem in this posting......
The next step is going to be a strip back - clean install, slow addition of apps. In the meantime can anyone identify any issues they've seen with any particular apps?
planetf1 said:
I have an I9505 running lollipop and struggling to address intermittent lag.
Broadly speaking the phone starts off working well, snappy.. but after a while can start to lag. By this I mean a press on the home button may result in a 20s+ delay for the task manager to come up. Switching a task may be slow, the keyboard may take 10-20s to appear, the screen may be mostly blank for a while. It doesn't crash, and does "come back" but it's nearly unusable. Usually once switched to a task and settled down scrolling is ok. then it may work just fine, snappy for a while
I don't see oddly high figures in the various stats I can see - cpu time isn't excessive. memory is harder to interpret and at times I do see kswapd busy just after a wakeup.. so my suspicion is it's a memory leak but one I can't prove
I've tried alternative kernels - hulk, imperium, and they don't appear to help matters at all.
The lollipop build was clean & Current firmware is I9505XXUHOD7, BTU
I am rooted and have progressively disabled various packages I don't use in an effort to lighten the environment
I've disabled animations (a cause of memory leaks in 5.0.1, though supposedly not affecting samsung touchwiz)
I am a software engineer and very familar with better battery stats, gsam, even a quick peruse through dumps via adb yet still haven't got to the bottom of my issue. I'm also very aware there's little in the way of solid facts to help debug a problem in this posting......
The next step is going to be a strip back - clean install, slow addition of apps. In the meantime can anyone identify any issues they've seen with any particular apps?
Click to expand...
Click to collapse
I should add that I did previously use CM12 and that left a little laggy too, though not tried CM12.1 . The two factors holding me back - a) better/reliable camera in TW b) Beep'n'go - love the app. works everywhere unlike every other loyalty card app I've tried (uses proximity sensor pulsing, Samsung TW specific)
planetf1 said:
I should add that I did previously use CM12 and that left a little laggy too, though not tried CM12.1 . The two factors holding me back - a) better/reliable camera in TW b) Beep'n'go - love the app. works everywhere unlike every other loyalty card app I've tried (uses proximity sensor pulsing, Samsung TW specific)
Click to expand...
Click to collapse
Hi,
try to disable swap devices, if there is any. If I know well, stock Lollipop ROM uses compressed swap devices in memory, like in stock KitKat ROM (zram).
In a terminal/shell:
- List currently used swap devices:
Code:
cat /proc/swaps
- Switch to root:
Code:
su
- Disable swap devices:
Code:
swapoff /dev/swapdevice
or if you have Busybox installed:
Code:
busybox swapoff /dev/swapdevice
Where /dev/swapdevice is the swap device/partition, which you want to disable.
It's the best to do this in some kind of init.d scripts before the system starts.
I am on still KitKat+rooted, but this should work on Lollipop, too.
Good luck!
planetf1 said:
The next step is going to be a strip back - clean install, slow addition of apps. In the meantime can anyone identify any issues they've seen with any particular apps?
Click to expand...
Click to collapse
I think this is the best thing to do. I suffered a weird wifi issue that no else had. A fresh/clean install of the same lollipop ROM and kernel fixed it. Haven't noticed any apps causing lag on lollipop.

Heavy lag

Hi guys,
Has anyone noticed heavy lag and freezing when using the phone. I don't have a lot of apps installed and i have disabled most apps that i don't use and the phone is still giving me issues.
Any advice is appreciated. [emoji4]
I switched from RAZR MAXX HD and this phone is a space rocket in comparison to my old Droid. Have you tried factory restore? Then if it lags - I would try to return it to Moto.
Check CPU utilization. Maybe some app hangs on. I've noticed that noozy (music player) lags like hell when album is over and player remains in notification bar.
emineh17 said:
Hi guys,
Has anyone noticed heavy lag and freezing when using the phone. I don't have a lot of apps installed and i have disabled most apps that i don't use and the phone is still giving me issues.
Any advice is appreciated. [emoji4]
Click to expand...
Click to collapse
I have the same problem, I tried to removing as much as possible automatic start calling but often when I uncheck the receiver this puts me "failed" in Rom Toolbox, I have tried Xposed Auto Boot module, but I do not feel that it works.
But for me, I have a lot of app instaled and my UI is very modified (Nova Launcher, Gravity Box, various Widget), so I know why he lag, but I still find it overheating lot and that's what most do slow.
Hi, I am having same issue. My configs was same as you, @Trinytix, but I had uninstalled all of them because lag issues. And now I continue to have same lag issues. When I use the standard cam for five minutes it become freezy and lag and sometimes I lose some photos. All the time it is burning. Just stops to burn when I leave it without work about 30 minutes. I think the problem is the snapdragon 810 but in other foruns some say that the problems with this processor was fixed.
I've been having similar issues, I got really into theming (using nova prime) the last couple of months and at the end of January the phone started to really lag hard. A couple weeks ago I stopped being able to open any apps other than the phone and google's messenger. I tried to factory reset from settings and could not (device gets stuck un the power down sequence), so I went the recovery mode route. reinstalled a fraction of my apps, put back a much stripped down version of my theme, and things were mostly ok, if a little laggy. However, the phone insisted that there was no SD card (internal or external) despite there being a 64GB card, which would sometimes show up when viewed in settings, some apps (podcast addict) were able to access the internal memory, but others couldn't (cameras, sms, photos, music). Yesterday the keyboard ceased to launch for more than a split second at a time, and would not take any input (you would not believe how infuriating this is unless you've experienced it first hand). In an attempt to regain some functionality I started uninstalling everything that I don't consider vitally important (bus app, podcasts, messenger) couldn't get through more than 1 or 2 at a time because multiple windows would stack telling me processes like "motorola" "android" and "media" had stopped. I did succeed in stripping away all the automation apps and theming apps (tasker, nova, icon packs, etc). I can't even place a phone call on the first try.
Oh and to add insult to injury I have to darned green lines about 0.5cm wide now.
Looks like hw problem or system got corrupted. Try to re-flash whole system but if is hw...

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