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 :/
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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.
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Click to collapse
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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] Phone reloads itself with no error messages, almost like hot boot.

I was wondering if anyone else was seeing this issue or knew what was causing it. My phone has for the longest time, been doing almost a hot boot on it's own, where I will notice the phone is at my desk, I see it come on by itself, menu and back buttons lit, and it looks like it reloads all the os. No errors, or crash errors, just on it's own. I have nothing stock uninstalled (everything on the phone is stock, rom included), did have some disabled via TB, but to test I allowed all services/apps to load as when I got the phone, still does the same thing, like every other day. I have the latest OTA, rooted, with the freeza update for LI3, running apex launcher pro and of course some apps/widgets like everyone else. This happens no matter what, but always on it's own. I have a widget that shows memory usage, and I'll have sometimes 300mb free, and once this "hot boot" the phone does, i'll be back at over 1.2 gb free, so I know it's reloading everything on the phone. is there any way of figuring out what is causing this, cause I know this isn't normal behavior. Any help would be great!

so I think I found the answer.. Via WIFI settings I had enabled under Advanced: Keep WIFI on during sleep, NEVER (increases data usage)... Of course when you'd then try to use your phone after some time, you'd notice it switch radios from 3/4G to WIFI, and sometimes it would take a few seconds to do that. When I had that option enabled the OS would reset itself after about a day of use, as I described above, not a full restart, no crash/force close errors, you'd just see the phone come on, and basically everything reloading.. After trouble shooting whether it was an app or something causing this, it was, I believe, the WIFI setting, since I changed it to keeping WIFI on "always" during sleep, in that advanced setting, the phone has not done the issue described. Going on 79 hours with no issues, which is the longest I've seen since noticing this problem.. So hopefully in the future if this happens to others, this method might be what was the problem/cure..

I always keep wifi on.. it seems to save a lot more power than 3g and its clearly faster =p.
Sent from my SPH-L710 using xda app-developers app

Frequent "GPS Signal Lost"

So weird Issue.
Using Google Maps on MaximusHD 6 with the latest t-mo firmware (2.11) I get constant "GPS SIGNAL LOST" when obviously driving and using it as my nav since I got it. I'm in southern California with a pretty good LTE signal almost everywhere. The highways are pretty open so trees, mountains, buildings etc are ruled out as a probable cost.
Now today I noticed that I normally keep the phone locked/screen off when driving since it's connected over BT so there's no real need to look at it. During a normal 15-20min drive I would get the signal lost alert a lot. Upwards of 10 or so times on that single drive. While with my M8 it never happened especially when literally not 5min after getting out of the parking lot doing maybe 20mph down the street. I first I thought i messed something up since I took the phone apart to apply thermal paste to keep it from overheating.
However today on a drive back I kept the phone with the screen on. Never did it lose signal while the screen was on, but a minute after I locked the phone (screen off) did it lose GPS signal. I turned it back on and after driving 20min or so the signal wasn't lost.
So overall has anyone experience a similar issue? Full cellular coverage with frequent google maps alerts that the GPS signal was lost. Maybe a background gps process being killed or another coming up and hindering it.
Gonna wait for the Thanksgiving break to mess around with stock/custom roms and see if it's just something that can be fixed with a reflash.

I'm having the same issue, have you figured anything out? Have you tried using a different app besides google maps to see if it's the actual app doing it's power save feature, or the background powersaving process being started by the phone being screen off? Really interested because my phone starts burning up to extreme temps...

On the backup I had with the issue I narrowed It down to possibly a background process cutting it off once the screen turns back. Power saving was off and all that would stick while screen was off was maps, Google service, and social apps.
As for the cause I couldn't figure it out. I went with a stock from without issues. Then went back to custom roms and haven't had the issue again. Also I drastically lowered my app count. Barely use any apps not needed for basic functionality.
As for the temp issue you're having. I noticed gets warm just like any other device when using GPS. I have opened up the phone and applied a new thermal coat following off a thread around here.
I have another issue came up where the phone would seek out a GPS signal while battery saving was selected to even location turned off. Killed my battery in a heart beat. Hasn't happened again.
I would suggest you make a full backup and either flash a stock rom or redownload whatever custom rom your using. Do a trial run for a day or two with minimal apps and see if it improves.

Here's where it gets interesting..
I used to own a galaxy s3 i9300 and custom kernels caused exactly the same issue. Flashing a stock rom solved it and a few other issues, one in particular was gps inaccurate coordinates.
Now I have moved to an m9. This has in the past run great. It is completely stock and untouched by curious fingers.. However, recently my gps has been running at random intervals even though it is completely off in all accessable settings. I can't find the culprit and it sapped 40% in a few minutes. It was literally a short face to face conversation, jumped back in the car and went for my phone for waze.. Dead as a dodo..
Confuzzled completely as to whether this is the actual rom doing it or an app..
I wish I stole my HTC M9.

shivadow said:
Here's where it gets interesting..
I used to own a galaxy s3 i9300 and custom kernels caused exactly the same issue. Flashing a stock rom solved it and a few other issues, one in particular was gps inaccurate coordinates.
Now I have moved to an m9. This has in the past run great. It is completely stock and untouched by curious fingers.. However, recently my gps has been running at random intervals even though it is completely off in all accessable settings. I can't find the culprit and it sapped 40% in a few minutes. It was literally a short face to face conversation, jumped back in the car and went for my phone for waze.. Dead as a dodo..
Confuzzled completely as to whether this is the actual rom doing it or an app..
I wish I stole my HTC M9.
Click to expand...
Click to collapse
Android 6 should be released around here soon so maybe that'll improve/fix these issues. I wouldn't be surprised if Google services is causing this since it has in the past drained batteries and causes similar issues. If the kernel is involved then the issue has been seen on both stock and custom.

well it may be a setting from the maximums HD, try using other Rom and tell us if problem is solved, try HD Revolution or ViperOne.

Hi all, I got a Moto G3 and having issues with the gps no signal message, it is on and off, but more the time that have no signal. So have heard that Android 6 could be the guilty one.. Do any of you know if there is a fix yet? ?
Enviado desde mi Nexus 7 mediante Tapatalk