• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

Question Cameraservice_worker partial wakelock

Search This thread
It doesn't. Went through all the options myself back in Feb. Only thing that came close was disabling sensors, but I wasn't prepared to have that running all the time.
Okay. Like I said, I disabled it just coz I didn't need it. At that time i wasn't even aware that this wakelock existed. Ignorance was bliss 😂
 
This is good!

I'm not sure why different users are seeing different levels is drain though.

I've walked around today with phone in the pocket for around 12000 steps today but the CameraService wakelock shows only 1% drain over 9 hours.

Strange.
 

Attachments

  • Screenshot_20210615-154952.jpg
    Screenshot_20210615-154952.jpg
    372.1 KB · Views: 87
  • Screenshot_20210615-154938.jpg
    Screenshot_20210615-154938.jpg
    450.8 KB · Views: 85
  • Screenshot_20210615-154922_Samsung Health.jpg
    Screenshot_20210615-154922_Samsung Health.jpg
    598.1 KB · Views: 86

jigna

Senior Member
Dec 16, 2010
171
43
1% drain over 9 hours
Yea BBS must track differently to gsam. I calculated mine at around midday when my battery had dropped 19%. Going by the calcs, the wakelock had taken up 2% of that 19% so in keeping with my usual ~10% overall.

EDIT: I just calculated it again. I'm down 31% total battery, wakelock accounts for 3.7%, so ~12% of the total usage.
 
Last edited:
Yea BBS must track differently to gsam. I calculated mine at around midday when my battery had dropped 19%. Going by the calcs, the wakelock had taken up 2% of that 19% so in keeping with my usual ~10% overall.

EDIT: I just calculated it again. I'm down 31% total battery, wakelock accounts for 3.7%, so ~12% of the total usage.
Hmmm... possibly.

For now I'm just going to uninstall BBS as I don't find this wakelock to be an unacceptable issue for me. Plus there isn't much I can do about the drain anyway till Samsung fixes it. Also, I hate that another process like BBS is continuously running on the phone all the time.

If I need to investigate further, I'll reinstall and start logging with BBS again.

But I'm glad news of this has got out and is more likely to be noticed by Samsung now. Good job XDA community!

Will keep an eye on this thread and see how things progress.
 
Last edited:

adamlee2012

Senior Member
Jun 11, 2012
1,604
498
United Kingdom
Samsung Galaxy S21 Ultra

Attachments

  • Screenshot_20210615-140612_Twitter.jpg
    Screenshot_20210615-140612_Twitter.jpg
    859.9 KB · Views: 26

Nat.smith26

Senior Member
Dec 3, 2020
112
54
Just to add my rock to building (not sure if this expression is a thing in English :p )

I have a S21U and my wife an S21+. On Sunday We were at a wedding, I put my phone on battery saving mode, she did not.
At the end of the day, she had around 70% battery left with 45 min screen on.
I had less than 60% with less than 1 hour screen on. With Battery Saving mode !!!

I don't think the bug affects the S21+. And I thing this bug drains the battery a LOT !
 

adamlee2012

Senior Member
Jun 11, 2012
1,604
498
United Kingdom
Samsung Galaxy S21 Ultra
Just to add my rock to building (not sure if this expression is a thing in English :p )

I have a S21U and my wife an S21+. On Sunday We were at a wedding, I put my phone on battery saving mode, she did not.
At the end of the day, she had around 70% battery left with 45 min screen on.
I had less than 60% with less than 1 hour screen on. With Battery Saving mode !!!

I don't think the bug affects the S21+. And I thing this bug drains the battery a LOT !
Yep but Samsung are adamant it's normal. They should maybe add an option under camera settings for us to turn it on or off. It definitely drains too much battery.
 

Attachments

  • Screenshot_20210615-161535_Samsung Members.jpg
    Screenshot_20210615-161535_Samsung Members.jpg
    912.1 KB · Views: 83
  • Like
Reactions: mabmed

adamlee2012

Senior Member
Jun 11, 2012
1,604
498
United Kingdom
Samsung Galaxy S21 Ultra

Attachments

  • Screenshot_20210615-172416_Reddit.jpg
    Screenshot_20210615-172416_Reddit.jpg
    424.8 KB · Views: 65
  • Screenshot_20210615-172827_Samsung Internet.jpg
    Screenshot_20210615-172827_Samsung Internet.jpg
    2.6 MB · Views: 65
Last edited:

nixnixnixnix4

Senior Member
Mar 15, 2021
348
72
You guys should try leaving power-saving mode with only the 70% CPU toggle ON all the time.
Turn that off if you're editing video on the phone or something.
See if that helps and report back?
 

Top Liked Posts

  • There are no posts matching your filters.
  • 4
    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?
    3
    There some good news that may get some relief to non root users.
    Fold 3 have removed this code and shouln't have this issue, I have found it while looking into code for some other purpose, though I don't own Fold 3 yet. So, may be with A12/next major update they are planning with august end, this may get fixed.
    And one bad news for rooted user, fold 3 now have disabled camera if you root device lol!
    3
    Could be possible yes...

    I've had sensors off most of the day while at work. Turned sensors back on when id finished
    I believe samsung heard you. It probably adjusted the shake sensor threshold.
    3
    With the new Update AUHB from yesterday for Exynos, I got no wakelocks fom Cameraservice_worker partial wakelock anymore.
    Yesterday on a ride with my bike for 5 hours, I had nearly 1 hour wakelocks, and today with an over 1 hour walk no wakelocks anymore.
    I hope, that it will not return again. Is there anybody else, who can confirm that?
    2
    Wow hope this is true😍 looking forward to the new update 👌🏾
    It's still an issue with the latest update.
  • 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.