Develop Bugs

[Q] What is a good ratio of running vs "screen on" time?

I've been constantly battling sleep issues. I am on PRI/NV 1.77 and latest radio. I tried downgrading to 1.77 just recently to see if it would fix it and it hasn't, but I'm staying put.
Running latest MIUI and Savage 1.6 kernel.
Spare parts had been showing on average 50% running time even though my screen on time would be something like 5%. I had read that ideally these ratios should match, since it means your phone is properly sleeping.
Spare parts shows paltry wake locks of just a few seconds or minutes for Android System as the top app. I've killed all my widgets and even tried airplane mode and don't notice too much of a drop. After getting rid of all updating widgets (minimal text and the MIUI cal widget) and stopping google calendar sync I'm currently at 30% running vs 5% screen on. I've basically got everything that would run in the BG disabled -- set cpu, system monitor, etc. Is this a "good ratio"? Any other ideas on debugging what seems to be an obvious wake lock? I've looked at logcat and don't see a thing that looks interesting, hardly any activity. Am I just being crazy or does it seem like I still have a wake lock?
Thanks for reading

If you've constantly been battling sleep issues, I would start looking at rogue apps that may be causing Android System processes to act up.
For instance:
I was battling a sleep issue with before knowing about PRI 1.90 causing it. Went so far as to reinstall my ROM wipe wipe and wipe some more before finally figuring it out.
In another instance I was battling sleep issues because of HTC's Facebook for HTC Sense. It was causing constant sync and I didn't notice because the sync icon would eventually go away, even if it took around half an hour.
One more instance, constantly changing governors with SetCPU was causing Android System process to use up a lot of CPU and my phone would become sluggish, and only after opening SetCPU and closing it again would my phone return to normal.
I would definitely start out by figuring out what apps you may have running at all times that aren't native to Android, then go from there. It sucks but once you figure it out, good times!

freeza said:
If you've constantly been battling sleep issues, I would start looking at rogue apps that may be causing Android System processes to act up.
For instance:
I was battling a sleep issue with before knowing about PRI 1.90 causing it. Went so far as to reinstall my ROM wipe wipe and wipe some more before finally figuring it out.
In another instance I was battling sleep issues because of HTC's Facebook for HTC Sense. It was causing constant sync and I didn't notice because the sync icon would eventually go away, even if it took around half an hour.
One more instance, constantly changing governors with SetCPU was causing Android System process to use up a lot of CPU and my phone would become sluggish, and only after opening SetCPU and closing it again would my phone return to normal.
I would definitely start out by figuring out what apps you may have running at all times that aren't native to Android, then go from there. It sucks but once you figure it out, good times!
Click to expand...
Click to collapse
Thanks for the reply.
So, this is a bad ratio then, i'm not nuts?
I kill EVERYTHING then sleep and i'm still seeing the issues. Is there some more fool proof way I can guarantee nothing is running before sleeping? My guess would be something syncing more than it should have. Should I try toggling everything app's sync off and then sleeping?

Ok, turned off sync, slept and the top UID was 10018, which on my phone linked back to Google Service Framework. I'm clearing data, turning off sync and watching again to see if it has issues.

lil-dice said:
Ok, turned off sync, slept and the top UID was 10018, which on my phone linked back to Google Service Framework. I'm clearing data, turning off sync and watching again to see if it has issues.
Click to expand...
Click to collapse
Interesting, I had that UID 10018 problem before and I never figured it out. It maybe Google Talk, Gmail, or even the Calendar. You may have to try clearing caches of one or all three to really see.

Cleared data, sleeping didn't improve. I slept with sync off after clearing data...i'm at a loss. I have next to nothing starting up. The only thing I can think is that Spare parts is reporting wrong information. You'd think it would be fairly easy to determine why the phone is not sleeping. If i don't even have sync turned on and it's still not sleeping as much as I feel it should be, I'm at a bit of a loss :/

lil-dice said:
Cleared data, sleeping didn't improve. I slept with sync off after clearing data...i'm at a loss. I have next to nothing starting up. The only thing I can think is that Spare parts is reporting wrong information. You'd think it would be fairly easy to determine why the phone is not sleeping. If i don't even have sync turned on and it's still not sleeping as much as I feel it should be, I'm at a bit of a loss :/
Click to expand...
Click to collapse
Under battery........what are your Up Time and Awake Time looking like?
Identical? minutes apart? seconds?

freeza said:
Under battery........what are your Up Time and Awake Time looking like?
Identical? minutes apart? seconds?
Click to expand...
Click to collapse
I'm not sure how to get to that in MIUI, in battery settings i jut see my minutes since unplugged. No Awake time.

What's a good ratio for awake/screen on? I really wouldn't want my awake time to be more than %120 of the screen on time. This can change if you regularly use the phone while the screen is off (music playing, wifi stuff, etc). At least, I'm pretty sure having the wifi on will increase your awake time.

Saturn2K said:
What's a good ratio for awake/screen on? I really wouldn't want my awake time to be more than %120 of the screen on time. This can change if you regularly use the phone while the screen is off (music playing, wifi stuff, etc). At least, I'm pretty sure having the wifi on will increase your awake time.
Click to expand...
Click to collapse
hmm ding ding ding.
Turned off wifi, did a quick 15 minute test and now my awake/screen are right in line....so what gives? Why does wifi prevent my phone from sleeping? Since i'm running MIUI i have to have wifi set to never sleep otherwise you get random reboots...feel like i'm between a rock and a hard place now :/

lil-dice said:
hmm ding ding ding.
Turned off wifi, did a quick 15 minute test and now my awake/screen are right in line....so what gives? Why does wifi prevent my phone from sleeping? Since i'm running MIUI i have to have wifi set to never sleep otherwise you get random reboots...feel like i'm between a rock and a hard place now :/
Click to expand...
Click to collapse
That's just how it is for all AOSP kernel using roms. Their wifi sleep mode is absolutely terrible. On the plus side, it seems as though it doesn't use an absurd amount of battery to keep the wifi on.

[Q] Tracking down Wake Lock

Hey guys,
This has been bothering me for a while now, but on occasion, my phone just stops sleeping. I attached a screen shot to show what I mean.
It happened on stock, so I've tried a couple other kernels, but they have the same problem.
Any suggestions?
Sent from my SPH-D710 using xda premium

trifthen said:
Hey guys,
This has been bothering me for a while now, but on occasion, my phone just stops sleeping. I attached a screen shot to show what I mean.
It happened on stock, so I've tried a couple other kernels, but they have the same problem.
Any suggestions?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Yes, probably you're experiencing the "AndroidOS" runaway issue. This is a nebulous and currently unresolvable issue, probably related to some Samsung/Sprint driver issue(s) causing feedback loops between the events/0 and suspend processes. It seems to be fixed temporarily by a reboot, or just randomly. It may or may not be associated with excessive battery usage.

I used to get those solid awakes, but then I froze a lot of apps and it went away.
I didn't do it systematically to figure out which was the cause.
As an aside, if you have an older version of FlightView, then that could definitely cause the issue. That isn't a stock app, but is somewhat popular and had a bug keeping the phone awake *even though it wasn't configured to do anything*.

Kn0wBuddy said:
Yes, probably you're experiencing the "AndroidOS" runaway issue.
Click to expand...
Click to collapse
Ironically, my AndroidOS has always been high (almost always higher than display), but it would always sleep just fine, and my battery-life was pretty good. But every time this happens, my AndroidOS is actually lower than usual.
So I've temporarily disabled Juice Defender (just in case it was interrupting something and confusing it into holding a wake lock) and removed the Facebook widget (Better Battery Stats had that listed as 50% of the wakeup events, which is just ridiculous).
I set a custom reference point so I can watch it for a while and see if anything weird pops up. It seems to be happening more often in the last week or so, and the only thing I did back then was remove Watchdog, because I haven't gotten any alerts for about a month.
I have noticed that usually when it gets stuck in an awake state for a long time, it also coincidentally has a stealth LOS, and rebooting will magically cause texts and voicemails to appear. Let's hope the December radio update fixes that problem.

How can I track down my battery drain?

Leaving my OP in place, but I have rewritten the description with much more detail and pics here
http://forum.xda-developers.com/showthread.php?p=25401417#post25401417
I suggest skipping to there.
I am looking for general tips here. E.g., not asking you to diagnose my specific problem so much as give me ideas of what else to check or try.
Lately I have had unexplained (to me) battery drain. Yesterday I lost about 25 percent in an hour while the phone idled. It is not a constant thing, though. I can go an hour and loose 1 percent then loose massive amounts in the next hour.
Now, i have searched, but I have not found anything that applies to me.
I have:
Tried a different radio
Tried a different kernel
Reflashed my rom
Phone is entering deep sleep according to cpu spy
There are no unusual or excessive wake locks according to better battery stats
No apps are using a lot of battery.
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Ideas?

might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.

Zepius said:
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Click to expand...
Click to collapse
beren28 said:
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Click to expand...
Click to collapse
So I don't think I can blame it on that.

Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2

can you give us screen shots of battery stats?

Herman76 said:
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I do, and on reflection it is a possible culprit since I added it recently.
Didn't occur to me since it was producing no wakelocks and the battery stats did not showing as using much battery.
I shall turn it off for a bit and see if that helps. (unless there is some other way to test if it is the problem first.) I am off to the search button!

Zepius said:
can you give us screen shots of battery stats?
Click to expand...
Click to collapse
This is from yesterday when i set it down unused for about 90 minutes. The amount of wakes seems liek a lot, but it is similar to what i see when i have far far less drain, so I don't think that is the problem. I didn't get the app list screen, but out should screen as the only major drain with about 2 minutes.
I know it is shows poor signal strength, so immediately after that shot I put it in airplane mode, turned of sync, and rebooted. The battery continued to drain and graph had the exact same slope under those conditions. (Forget to get a pic though.)
Sent from my jitterbug using tapatalk.

System panel paid version with monitoring enabled is the best for tracking apps using CPU.

OK, still working on this.
To recap:
When the screen is off, and no apps are running I sometimes get inexplicable battery drain. This is occurring under conditions when I should be experiencing little or no drain at all. I say this becuase:
The screen is of and no bakground apps are running
the phone is NOT awake and IS entering deep sleep (as confirmed by cpuspy)
there are no unusual kernel or partial wake locks
there are no apps listed as using unexpected ammounts of battery
This is not a universal problem. The phone *often* behaves as expected. I can leave the phone off for an hour and see a 1% or 2% drain, and I am happy with that. However, sometimes, randomly, it goes nuts on my.
This graph from a few weeks ago shows what I mean. Look in the green box. The phone is sleeping, and the screen is off. The graph starts as a flatline, then, all of a sudden, it begins to drop precipitously.
Here is a graph that shows the battery dropping at the same rate whether the phone is awake or sleeping:
I have gone the following to try and narrow the problem down:
Done a completely fresh install of my Rom including a system wipe.
Tried two kernels (the aokp default and several relases of Franco's
Tried a different radio
Activated and installed a new sim card
I have come to suspect that the problem is network related. When the problem starts, sometimes going into airplane mode and back and/or toggling 2g only temporarily fixes the problem.
I suspect that something is happening with my connection to T-Mobile that keeps the network running and draining power. This is pure speculation, but it is all I can think of.
I installed juice defender (which I had not been previously running) and noticed the that, sometimes, it didn't turn of data when it should have. I also noticed the following two things happen:
I do not believe it is a rom problem, since if so, someone else would be reporting this. It might be an app problem, but if so the app is draining battery without a wake lock and while the phone is in deep sleep.
It is not exchange (as was suggested in this thread) since it continues when I ev my exchange account.
I have no idea what else to do or try.
Since it happens at random and takes a while to identify, uninstalling one app at a time to test for that could easily take months to narrow down a misbehaving app.
I know it is not a hardware issue since last month I got this:
That was with AOKP and Franco (earlier versions obviously)
I have google searched till my fingers bleed.
I am a long way form being an expert, and I suspect I may have overlooked something obvious.
Please, any thoughts??

Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.

1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time

derekwilkinson said:
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
Click to expand...
Click to collapse
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Here is that chart for last night.
I had about 1 hour and 30 minutes screen on time with 65% left when I went to bed. When I woke up, phone was dead.

RogerPodacter said:
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
Click to expand...
Click to collapse
Mine often does that. But sometimes it doesn't. It is the fact that it happens seemingly at random that makes it so annoying and hard to track down.

I would replace the battery
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.

arw01 said:
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
Click to expand...
Click to collapse
The thought has occurred to me, but unfortunately, no, I don't have a friend I can swap with. And really, since I have had the phone less than 3 months, the battery *shouldn't* be bad, but yeah, defective products happen.
If I cannot find any other cause I will likely order a new battery and see if that fixes it.

beren28 said:
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Click to expand...
Click to collapse
1. yes battery calibration does make a difference.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"? Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ

derekwilkinson said:
1. yes battery calibration does make a difference.
Click to expand...
Click to collapse
You are incorrect. But, in any case, I DID calibrate the battery just to cover bases in the case that I was wrong.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"?
Click to expand...
Click to collapse
We'll of course it can. That is kinda my point. If I go one app at a time waiting for it to "run a process at random" I am talking literally MONTHS of testing. I would have to wait many hours, if not days after installing or uninstalling an app to be sure whether or not it made a difference, then move on the the next. This is simply not an option. I started this thread in hopes that a realistic and doable solution might exist that I was unaware of.
Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
Click to expand...
Click to collapse
I am asking because there may be a solution that I am unaware of that doesn't require me to put my entire life on hold for months. It is possible that there is no such solution, but I asked in case there was one.
Sorry to have put you out so much.

You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.

skadebo said:
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
when i did a complete quote and re flash i did not setup the exchange account, but the issue continued.
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
Click to expand...
Click to collapse
I'll check that out. Thanks.
Sent from my jitterbug using tapatalk.
Click to expand...
Click to collapse
Click to expand...
Click to collapse

My battery also drains at a rate similar to yours however I'm on the CDMA version. Hopefully you can figure out what's going on with yours.

[Q] Huge overheating and battery drain

Hello
I was not able to find, in all the posts about battery drain, someone with the same problem as I have.
I have should have attached my phone info, some battery usage and my highest RECORDED battery temperature.
Yes, recorded, because I'm sure I got a higher one at least once.
So, my phone is always kind of hot when it's turned off in my pocket, not under 35C.
When I use it normally, like for example while wrighting this thread, it heats up to about 40-45C
And when I use it to play games or watch videos, it goes to 45-50C and maybe higher, to a point where I can't even hold it anymore.
And I recently realized that the batrery drains really fast. I'm not sure if this was a problem before I updated to Android 5.0 but I do not think so.
What do you think I should do?
Thank you in advance and sorry for any typos!

I'd imagine part of the battery drain has to do with the phone being "awake" pretty much the entire time, even when your screen was off.

soadshavo56 said:
I'd imagine part of the battery drain has to do with the phone being "awake" pretty much the entire time, even when your screen was off.
Click to expand...
Click to collapse
Thank you, and how do I fix that?

I only know 2 causes that would keep the device awake. (probably much more)
1) Some funky app that keeps on running while screen is off. For example a game that you exit via Home button will cause that. Not all games, but some.
2) Google sync failing. I get that a lot when I travel to China. Since Google is blocked there it would keep syncing indefinitely.
thats all I know, hope it helps

ratratrat said:
I only know 2 causes that would keep the device awake. (probably much more)
1) Some funky app that keeps on running while screen is off. For example a game that you exit via Home button will cause that. Not all games, but some.
2) Google sync failing. I get that a lot when I travel to China. Since Google is blocked there it would keep syncing indefinitely.
thats all I know, hope it helps
Click to expand...
Click to collapse
Thank you for your help, but I do not think that's the issue as I never close any app without pressing "back" until it's closed and then closing it again in the "recent apps" menu. As for Google, it last synced a minute ago.

Laslas19 said:
Thank you for your help, but I do not think that's the issue as I never close any app without pressing "back" until it's closed and then closing it again in the "recent apps" menu. As for Google, it last synced a minute ago.
Click to expand...
Click to collapse
Looking at your google play services. That's quite a bit of usage... Should look into it. Also I know there are apps out there that can better isolate the culprit, but I haven't really looked into it since I haven't had much battery issue for the longest time. Hopefully someone with better knowledge of the situation can help. I'll start by clearing data on the google play stuff.

Teo032 said:
Looking at your google play services. That's quite a bit of usage... Should look into it. Also I know there are apps out there that can better isolate the culprit, but I haven't really looked into it since I haven't had much battery issue for the longest time. Hopefully someone with better knowledge of the situation can help. I'll start by clearing data on the google play stuff.
Click to expand...
Click to collapse
I've already looked into it and researched it but I can't seem to fint something that I haven't already done. Maybe it's the Mobile Radio? If so, how do I turn it off?

Lost 50% Battery Overnight

I've had the phone for near a week now and this is the first time doze has failed me. Left it alone at 10pm with about 50% left and looks like it went to zero in about four hours. (screenshot) I've tested other nights and it worked as expected -- wifi and cell coming on and off periodically. When checking usage, I was disturbed to find Facebook took up 25% of my battery. Is there some way Facebook is overriding doze?

dipson626 said:
I've had the phone for near a week now and this is the first time doze has failed me. Left it alone at 10pm with about 50% left and looks like it went to zero in about four hours. (screenshot) I've tested other nights and it worked as expected -- wifi and cell coming on and off periodically. When checking usage, I was disturbed to find Facebook took up 25% of my battery. Is there some way Facebook is overriding doze?
Click to expand...
Click to collapse
Wow. Looks like it was constantly awake during that time. You didn't happen to turn on photo syncing with Facebook?
Sent from my Nexus 5X using Tapatalk

Facebook is one of the worst when it comes to battery drains, I stopped using it and i just use a browser to stay logged in. Snapchat is also pretty bad, I think it was top 3 in my list while I slept earlier. First time happening, i turned off location on snapchat, ill see if that helps

btort1 said:
Facebook is one of the worst when it comes to battery drains, I stopped using it and i just use a browser to stay logged in. Snapchat is also pretty bad, I think it was top 3 in my list while I slept earlier. First time happening, i turned off location on snapchat, ill see if that helps
Click to expand...
Click to collapse
Same here. Facebook did this to me back when I had an HTC Hero, killed my battery in 8 hours no problem. The moment they changed the application to a "service" and had those wake-lock bugs I ditched it, never looked back.
No application should install itself as an always-on service unless its there for push messages. I decided that having my phone last all day was more important than getting facebook messages immediately.

EeZeEpEe said:
Wow. Looks like it was constantly awake during that time. You didn't happen to turn on photo syncing with Facebook?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Yea, it looks like it was constantly connected. Don't have photo syncing, but good thought.
btort1 said:
Facebook is one of the worst when it comes to battery drains, I stopped using it and i just use a browser to stay logged in. Snapchat is also pretty bad, I think it was top 3 in my list while I slept earlier. First time happening, i turned off location on snapchat, ill see if that helps
Click to expand...
Click to collapse
I stopped using Snapchat a while ago for that reason. Facebook, however, never really gave me a problem on my N6. It usually hovered around 6-7% use. No app is worth that much drain, let alone Facebook. If this is a normal occurrence, I'll probably just uninstall it.
ryan stewart said:
Same here. Facebook did this to me back when I had an HTC Hero, killed my battery in 8 hours no problem. The moment they changed the application to a "service" and had those wake-lock bugs I ditched it, never looked back.
No application should install itself as an always-on service unless its there for push messages. I decided that having my phone last all day was more important than getting facebook messages immediately.
Click to expand...
Click to collapse
Hopefully this was a one time occurrence since it worked fine on my N6. I've got no problem getting rid of it though, because like you said, I'd rather have my phone last all day (or night in this case).

Second Night Update
While I agree the Facebook app is bad, it looks like it was not the culprit. Uninstalled, doze again failed to kick in overnight and drained 18% over about seven hours. Not as bad as the 50% the first time, but still no bueno. It looks like Android OS kept it awake for seven hours. I know doze is pretty new, but there are some smart people here; anyone got any ideas/theories as to what's going on and remedy? Screenshots

I'm experiencing the same EXACT issues except I don't have Facebook installed

tjrocks91 said:
I'm experiencing the same EXACT issues except I don't have Facebook installed
Click to expand...
Click to collapse
Good to know I'm not alone! Even after uninstalling Facebook I've got the same problem with Android OS keeping it on. I'm considering clearing the cache and see if that changes anything.

Wow you have a perfectly diagonal line. Try a battery monitoring app. Might have more useful information as to what is draining overnight.
Sent from my Nexus 5X using Tapatalk

I did a factory reset and installed ~10 of my most used apps instead of restoring all apps and it's been sleeping fine now, no wakelocks
I also turned off WiFi and Bluetooth scanning, location services are on battery saving, and Google location reporting is off

I am willing to bet there are going to be some hiccups with marshmallow or even some newer hardware features of the phone and some apps until everything gets up to speed.

Just wondering, what build are you guys on? MDA89E or MDB08I?? I'm on MDA89E

I got 08I immediately after turning it on, Ive always lost like 1-2% overnight.
Maybe that is what the last-minute update was for, fixing that bug that you (unfortunately) found.