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Question Cameraservice_worker partial wakelock

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bartjeh1991

Senior Member
Mar 6, 2012
436
134
Samsung Galaxy S21 Ultra
Mate, just FYI, BSS_Indisplaysensor helper is the fingerprint icon on the AOD display. If you disable the icon under fingerprint settings (set to never show) the wakelock dissappears.

Another thing I have noticed, you have high bat usage from IMS Service wakelock. For me, my carrier automatically enrolled me in something called 'Rich Communications Suite'. (RCS)
This is a setting under connections > more connection settings. What this does essentially, is allow large files and MMS messages to be sent within my carrier for free. BS stuff.

Nevertheless, disable rich communications and you will have way less wakelocks from IMS service. At least this was my experience.

Now, only the damn cameraservice_worker wakelock remains for to be fixed (Still no update yet)

Cheers mate and spread the love
Dude, thanks a lot! I had this on my top battery drain for some time. After disabling its all fine!
 
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hsienjuen

Member
Jan 16, 2012
31
5
Hello guys just an update:
Since updating my phone to the AUHB August patch, for me I'm happy to say that this wakelock seems a lot less frequent :D!

I can finally use my phone like how it's meant to be used. And I finally have face unlock functional again! (Previously couldn't work as sensors were off)

What is the situation with you guys? Is anyone still having this wakelock a lot?
 

adamlee2012

Senior Member
Jun 11, 2012
1,718
571
United Kingdom
Samsung Galaxy S21 Ultra
Hello guys just an update:
Since updating my phone to the AUHB August patch, for me I'm happy to say that this wakelock seems a lot less frequent :D!

I can finally use my phone like how it's meant to be used. And I finally have face unlock functional again! (Previously couldn't work as sensors were off)

What is the situation with you guys? Is anyone still having this wakelock a lot?
It's still there but drain is less 👍
 

Goku1992

Senior Member
Feb 29, 2016
745
164
Dortmund
Hey guys, it seems that Samsung changed something with the cameraservice_worker-partial-wakelock. In October patch (did a clean install cause i was on beta 1) and standby is even better now. Dont know if it is Placebo cause the beta wasnt as good. Can anyone confirm?
 

adamlee2012

Senior Member
Jun 11, 2012
1,718
571
United Kingdom
Samsung Galaxy S21 Ultra
Hey guys, it seems that Samsung changed something with the cameraservice_worker-partial-wakelock. In October patch (did a clean install cause i was on beta 1) and standby is even better now. Dont know if it is Placebo cause the beta wasnt as good. Can anyone confirm?
On beta 1 gsam wouldn't read the battery stats so couldn't check the wakelock but knew it was there because standby while moving was really bad. I'm now on October patch and camera service is usually 3rd on the list of wakelock.
 
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dr.ketan

Recognized Developer / Recognized Contributor
On beta 1 gsam wouldn't read the battery stats so couldn't check the wakelock but knew it was there because standby while moving was really bad. I'm now on October patch and camera service is usually 3rd on the list of wakelock.
On beta it is very similar like old vesion, plaenty of wakelocks
On Aug-Oct Patch Android 11, it is better and less wakelocks
 

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  • 2
    On beta 1 gsam wouldn't read the battery stats so couldn't check the wakelock but knew it was there because standby while moving was really bad. I'm now on October patch and camera service is usually 3rd on the list of wakelock.
    On beta it is very similar like old vesion, plaenty of wakelocks
    On Aug-Oct Patch Android 11, it is better and less wakelocks
    1
    Hey guys, it seems that Samsung changed something with the cameraservice_worker-partial-wakelock. In October patch (did a clean install cause i was on beta 1) and standby is even better now. Dont know if it is Placebo cause the beta wasnt as good. Can anyone confirm?
    On beta 1 gsam wouldn't read the battery stats so couldn't check the wakelock but knew it was there because standby while moving was really bad. I'm now on October patch and camera service is usually 3rd on the list of wakelock.
  • 10
    Ok, so today (thanks sunday) dig this issue further as too many discussion was going on but never experienced it as my S21U is just spared device and only using for development purpose.
    There are some good and bad news.
    • This seems intentional and to prevent camera motor sound while device isn't being used. I have doubt samsung gonna fix this
    • There can be some workaround/partial fix and may some good fix
    • Partial fix may have some compromisation like disable sensor at all while screen is off. This can be achieved with external app. Again there may be little drain for this app (Though should be negligible). App needs root.
    • Some system level fix (custom ROM) can be tried, I have tested one and result is attached in below screenshot. C=control (with stock) T= Test. In both tests, I couldn't find CamerService_wakelocks.
    Teseted1 for 9-10min walk + 2-3 min standby + some shaking - No wakelock detected
    Tested 2 with some semi manual changes - 5 min walk + some shake - No wake lock detected
    Restore stock and (control) and wakelocks returns.
    Important things to test are :
    • How much this makes difference practically
    • Does this breakes any camera/other important fuctions (Specifically when system level changes made)

    Main drawback is either of method needs root. Still looking if some workaround there for non root but chances are thin.
    Yet needs some more and thorugh testing. Let's see how time permits.


    Screenshot_20210606-201752.jpg Screenshot_20210606-224203.jpg Screenshot_20210606-223335.jpg Screenshot_20210606-222556.jpg
    6
    Though not perfect but we can write some scripts (meanwhile Samsung fix it) that can turn off sensors while screen is off and vice versa when screen turns on.
    6
    Which app to use or where to go to disable this wakelock?
    It's under development (testing) phase.
    6
    Today tested effect of fix and with Sensor off method (Tool with Auto off sensor when screen is off) drain was nearly 2-3%, similar to turning off sensor manually (Benefit of fix is, it will do it on it's own, you don't needs to turn sensor On/off manually)
    Another fix is pretty cool (ROM level), No wakelocks at all. nearly 1 hr (10-15 min walk, 2-3 min screen on and rest of time in pocket in sitting position) battery drain was only 1% (attached screenshot). This fix doen't needs QS tile too.
    Unfortunately both needs root.