Audioout_2 wakelocks - Nexus 4 Q&A, Help & Troubleshooting

Hello,
I really tried to find an answer to my question but I couldn't. There is a thread in the Galaxy S3 forum but as I have a N4 and suggestions in the said thread did not help I'm trying here again.
As BBS tells me, Audioout_2 is causing a lot of wakelocks on my N4. In 10 hours of use, it caused 704 wakelocks (more than 50 minutes). I guess it is a lot since the next on the BBS list is Kakao talk with 9 minutes (280 times). The sound was turned off the whole time (vibrate only). And I don't have Viber installed (some people supposed that Viber caused the Audioout_2 wakelocks). I also turned off Google tts which was supposed to cause the problem too.
Does anyone know what Audioout_2 is and how to decrease the number and time of wakelocks?
Thank you very much in advance.
Edit: Running latest PA on latest franco kernel + some grammar corrections

Really? Am I the only one having this problem with a N4.
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I've read in a thread that the problem could be the touch sounds, try to deactivate them (touch sound, screen lock sound and keytones) and see if it desappears! (Reboot the phone after disabling those sound, in order to be sure)
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TheUnreaL said:
I've read in a thread that the problem could be the touch sounds, try to deactivate them (touch sound, screen lock sound and keytones) and see if it desappears! (Reboot the phone after disabling those sound, in order to be sure)
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Click to expand...
Click to collapse
I have the same problem. I've disabled touchsounds etc. a long time ago, so that's not the problem.
Really don't know what to do about those wakelocks...

Janne79 said:
Really? Am I the only one having this problem with a N4.
Click to expand...
Click to collapse
You'll need to wait longer than 3 hours before coming to that sort of conclusion.
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TheUnreaL said:
I've read in a thread that the problem could be the touch sounds, try to deactivate them (touch sound, screen lock sound and keytones) and see if it desappears! (Reboot the phone after disabling those sound, in order to be sure)
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Thank you for the answer but that's definitely not the problem as I never ever used touch-, screenlock- or keysounds.
steviewevie said:
You'll need to wait longer than 3 hours before coming to that sort of conclusion.
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Click to collapse
Sorry, you're right, seems a bit impatient by me. But, it was 3 hours and 6 minutes No seriously, I'm sorry.
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Audio_2, so descriptive...
I have had the same problem with this strange wakelock on my N4 with stock google + franco kernel.
I am not sure when exactly it started to appear, so lets find some commonalities:
Do you have Calendar Snooze ( cannot post links yet ) installed ?
Andrey
PS (installed CyanogenMod without franco kernel 6 hours ago, lets see if it will reappear)

andrey.tch said:
Do you have Calendar Snooze ( cannot post links yet ) installed ?
Andrey
Click to expand...
Click to collapse
Nope. But latest "rumor" I heard is that the haptic feedback causes the wakelock too. Turning off sounds is not enough. So I'll try to turn off haptic feedback after next charging too (even though I will miss it)
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I'm pretty sure audioout_2 comes up when you are listening to music or watching a video. I've been listening to music on spotify and I get that wakelock normally.
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scream4cheese said:
I'm pretty sure audioout_2 comes up when you are listening to music or watching a video. I've been listening to music on spotify and I get that wakelock normally.
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Click to collapse
I don't here any music on my phone. Maybe listening to music causes those wakelocks but there must be something else causing it too.
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Janne79 said:
Nope. But latest "rumor" I heard is that the haptic feedback causes the wakelock too. Turning off sounds is not enough. So I'll try to turn off haptic feedback after next charging too (even though I will miss it)
Click to expand...
Click to collapse
I did not have haptic feedback, which pretty much rules it out for me. I did use music player though (3rd party, not internal one) over bluetooth. But somehow it was appearing when I did not listen to the music too, just drove and phone (wow... feels weird to call it like that) was connected to in-car bt audio

Seems to be haptic feedback. After I turned it off the wakelocks from Audioout_2 almost stayed the same (2 min in 2 hours)
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Janne79 said:
Seems to be haptic feedback. After I turned it off the wakelocks from Audioout_2 almost stayed the same (2 min in 2 hours)
Click to expand...
Click to collapse
I am glad you have it solved for yourself. I will try to keep an eye on haptic thingy too.

Just a little update: Phone is unplugged for 3 hours now, haptic feedback off, wakelocks caused by Audioout_2 are down to 8 seconds (12 wakelocks). That's a huge improvement.
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Last update: 9hrs, 2 min with 63 wakelocks. I guess that's it, problem solved. I'm surprised how fast I got used to not using haptic feedback.
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Janne79 said:
Last update: 9hrs, 2 min with 63 wakelocks. I guess that's it, problem solved. I'm surprised how fast I got used to not using haptic feedback.
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Click to collapse
I hate haptic feedback. it's annoying and a waste of power. Grrr.
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I love haptic feedback but it's a battery drainer indeed.
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Janne79 said:
I love haptic feedback but it's a battery drainer indeed.
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Click to collapse
I'm glad you solved the problem. :thumbup:
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Strange I've been running all day (5hrs) with haptic on and I've only got 12 seconds (count 13) worth of wakelocks from audioout_2...
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rysup said:
Strange I've been running all day (5hrs) with haptic on and I've only got 12 seconds (count 13) worth of wakelocks from audioout_2...
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Click to expand...
Click to collapse
The whole Audioout_2 thing is strange. Some people solved the wakelock problem by uninstalling Viber, some by turning off system sounds only and in my case it obviously was the haptic feedback. I don't get it too but it solved my problem.
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Related

Liquid smooth and Franco kernel

Fairly new to all this but installed both the above and hasn't made much difference.. Any ideas please.
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Fwosh said:
Fairly new to all this but installed both the above and hasn't made much difference.. Any ideas please.
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Click to expand...
Click to collapse
We need more information besides that single screenshot. Have you checked your wake locks? Do you have any apps running in the background that it's not suppose to? Any rogue apps? How is your service?
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Fwosh said:
Fairly new to all this but installed both the above and hasn't made much difference.. Any ideas please.
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Click to expand...
Click to collapse
That's looking normal to me. By the looks of it you have had over an hour of streaming music. So constant data connection and media service use.
I use paranoid android and Franco kernel and here is my usage.
Note I only use light web browsing and medium xda usage
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music will kill the battery via media server
i would love to use my phone as a music player but since it drains so quickly i've resorted to using my ipod and just left music out of nexus 4 for now.
without music and only internet use, email, texting, some minor games here and there (pinball, super hexagon, some GBA games)
i get at LEAST 20+ hours and about 3 hours screen on time consistently
I didn't actually steam any music it was all stored locally from Spotify but your correct music does seem a killer. Just to be sure I had liquid smooth installed and after a few days applied the kernel. I didn't do a clean install of everything would this have made any difference?
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No you don't need a clean wipe to flash a new kernel
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Oh Okay thanks that's good to know.
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Hi all, those who are running liquid smooth, could you tell me, if the are profiles (as in CM) presented in this ROM?
Screen on time is the main battery drain, if you've got upwards of 3 hours with a full charge (depends greatly on brightness levels) then you're doing ok.
Im running the same setup (LS + Franco) and have my screen brightness on 100%.
I get between 3 and 3.5 hours of screen on time, which is fine for me.
On stock i was getting 2 hours.
I use the same combo and I my battery drain is fine
Sometimes you need to go through a few full charge cycles to tell the difference
I'll keep you updated as I go... Thanks for your comments
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Well at the moment I'm using my phone as normal. Usually dead when I walk through the door but still showing 19‰ so pretty happy with that
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When I make a call the phone turns on vibration mode

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Whenever I make a call my phone now turns itself in vibration mode. This is very annoying! Im running stock unrooted 4.2.2. I remember having this before on my Nexus S running 4.2.2 (custom rom)
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Never mind I just fixed the bug. I uninstalled AVG and the problem is no longer there
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thank you lowtje
lowtje said:
Never mind I just fixed the bug. I uninstalled AVG and the problem is no longer there
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Click to collapse
thank you man, I suffered from this problem in my htc wildfire, and drove me crazy, I scanned and uninstalled all the apps I suspected. The same problem appeared in my brand new htc one after I installed a few app.
It never occurred to me that AVG was the culprit.
thank you
thank you:good::good::good::good::good::good:
Thanks dude you saved me
I am your fan now
You don't know the level of suffering i had to go through.. I will be in a meeting or conference
with my Nexus 4 on silent.. A call comes and bam it rings..
Tried uninstalling all kinds of apps.. Never knew avg would do this..

huge mediaserver/audioout_2 wakelock hogging battery life

Today i want to work and put the device in a drawer. never touched it during the whole shift but one phone call. during a five hour period 30% of the battery was wasted. bbs showed audioout_2 wakelock took place for 5 hours. screen time was 30 minutes. I haven't kept any screen shots from bbs but i did capture on system battery usage.
what could have caused it?
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I'm having the same issue here
, couldn't find the sollution yet..
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weird. ain't nobody here aware of this?
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op, perhaps a little enlightenment on your setup(rom/kernel) would yield helpful information from someone running similar setup
good luck
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QUIETLYloud said:
op, perhaps a little enlightenment on your setup(rom/kernel) would yield helpful information from someone running similar setup
good luck
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Click to expand...
Click to collapse
STOCK EVERYTHING .
not even rooted or bootloader unlocked. An out of the box Nexus 4 16GB (301k),.
Perhaps there's a corrupted media file somewhere in the storage system.
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scream4cheese said:
Perhaps there's a corrupted media file somewhere in the storage system.
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Click to collapse
I have no media files on my storage, all my music is via GOOGLE PLAY.
(the wakelock is not caused by google play because since I booted the phone I have not listened to any music)
There seems to be a fix for the problem, haven`t used it myself though. Link http://forum.xda-developers.com/showthread.php?t=2050252. Its a init.d script at boot and you need root.
I wish to avoid rooting my device. when I bought the nexus I wanted to have a vanilla Google experience.
Also I don't wanna void my warranty.
michel9501 said:
I wish to avoid rooting my device. when I bought the nexus I wanted to have a vanilla Google experience.
Also I don't wanna void my warranty.
Click to expand...
Click to collapse
Not rooting a Nexus is like forbidding the Pope to pray But to each his own.
Yeah I know, I think I'll root if i hear reports that rooted devices can receive official google updates
michel9501 said:
Yeah I know, I think I'll root if i hear reports that rooted devices can receive official google updates
Click to expand...
Click to collapse
Look here for flashing OTA`s when rooted http://forum.xda-developers.com/showthread.php?t=2145848.
and what of the audio out 2 wakelock? I'm still getting high wakelock times because of it
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I remember one time, I left a game without closing the game. 5 hours later my battery dipped and I tried to figure out why. I realized that the game was still running in the background and drained a good 30% of my battery because of the mediaserver. I know it was still actice cuz when I hit recent it picked up exactly where I left off with no lag jumping back into it.
I'm guessing the game isn't coded to freeze in the background when you leave it. I could be wrong, but this is one possibility I think.
I'm on PA, with the matrix kernel. The game is called PAD in case anyone wants more info. I say, just be sure to exit games or generally certain apps when you finish playing them.
This only happened once and since then never again since I started closing that particular app correctly. Also, I don't mess with any music volume booster mods. Just get some noise isolating earbuds/headphones. The volume booster mods definitely killed battery much quicker than it was worth with my first nexus 4
I close everything and still got 1.5h of AudioOut_2 and AudioOut_3 wakelock overnight . 20% battery drain overnight. normally my battery drains 5-6% overnight.
up
Maybe there is a corrupt file on your phone, it doesn't have to be music, could also be a ringtone or a video.
considering you don't want to root I would consider factory reset then reinstall 1 app at a time until you find the culprit. I know it's time consuming but it's either that or keep your charger handy
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[Q] Nexus 4 turns on randomly in pocket?

My nexus 4 has had some curious behaviour over the past few days. Sometimes I take it out of my pocket and the screen is on, and its in an app, or my pie mode has been activated. I noticed that 9/10 times my Bluetooth turns on
. this isn't a big issue but it drains my battery. Help is appreciated. (I'm running PA atm)
Double tap to wake kernel ?
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jithuelad said:
Double tap to wake kernel ?
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Click to collapse
I did, but disabling it is not making a difference.
EDIT: its fine now, that was the issue. Thanks

Mysterious ticking noise

Hi, recently i noticed, this annoying popping/ticking noise while listening to music and talking on the phone using headphones. Anyone had this problem before? It only appears when the screen is off.
Using PA with franco kernel. N4 16gb.
Can you try raising your screen off frequency a few notches?
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I could try, but then my battery life would surely get worse :/ are you sure that's the reason?
To be honest i don't even have an app to change it, any suggestions?
Qbsti said:
I could try, but then my battery life would surely get worse :/ are you sure that's the reason?
To be honest i don't even have an app to change it, any suggestions?
Click to expand...
Click to collapse
You'd change it in settings, display
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jd1639 said:
You'd change it in settings, display
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Click to collapse
Oh, the screen off timeout, i though he was talking about cpu frequency when the screen is off. Well having my screen on the whole time is not a solution when im daily listening to music for ~4h.
Sorry for the miscommunication. I was actually referring to the max screen off frequency, the setting adjustable in most kernel managers (I believe the Franco kernel manager has this setting, as does trickster, etc). It might reduce battery life slightly, but its worth a shot to try to fix the issue. I am not 100% sure that this is the reason for your problem, though, just trying to give you suggestions.
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Thanks, ill try it next time it occurs and report back here if it solves the issue.

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