Help Auto Brightness not working

[ooberandy]

My auto brightness seems to have suddenly stopped. It used to work fine, but now it simply doesn't work.

Does anyone have this problem or know of a solution?

 

[El Presidente]

Could be something wrong with the light sensor?

Install this: https://play.google.com/store/apps/details?id=com.bartat.android.elixir

Head to Sensors, then run the light sensor test. While it's running, place your finger over the sensor to see if the values on screen change.

 

[ooberandy]

I get nothing when I run the sensor test. Would this be a warranty issue?

 

[El Presidente]

Yeah, sounds like it unfortunately.

Make sure it's not dirty or smudged (although I'm sure that would be obvious), then maybe give it a reboot.

If it's still broke, I'd give Google/LG a call.

 

[ooberandy]

Ok, thanks.

Just thinking ahead. I've rooted the phone & installed a custom kernel, I guess the phone would have to be set to stock for a warranty to be upheld?

 

[El Presidente]

Yeah, and the bootloader relocked too.

If you're running a custom recovery you could try a different ROM/kernel? Might work, might not but it saves sending it away if it does.

 

[ooberandy]

The reboot fixed it. I'll keep an eye on it for the moment though.

Was thinking of changing my kernel too, for a separate reason.

thanks for your help

 

[El Presidente]

No problem, hopefully it was just a temporary glitch.

 

[codesplice]

I've had a few times when the light sensors appears to stop working like you've described. Sometimes it seems to happen in conjunction with certain apps (particularly any that use screen overlays, for some reason), but sometimes it's just random. A reboot nearly always clears it up. :thumbup:

 

[ooberandy]

I use tasker to turn my screen brightness down at night, so maybe thats causing it some problems. The reboot cleared it, so its no big issue now