Range for manually adjusting brightness

mihael

Is there any way to manually adjust brightness to an even lower value than the minimum brightness achieved when moving the slider in the top menu to its most left position?

maybe from command line?
or maybe the minimum that can be achieved by moving the slider can be edited somewhere to be set to an even lower value?

Thank you for any input!

Context: I keep my phone unlocked during the night in order to display the time but the screen backlight bleed bothers me.

paulcarroty

Start from find /sys -name brightness.

mihael

@paulcarroty Allright, I see /sys/devices/platform/soc/4784000.sdhci/leds/mmc0\:\:/brightness and it has the value of 0. If I change its value to let's say 100, there's no change on the device's brightness though...

What else could I try?

Thank you!

paulcarroty

@mihael said in Range for manually adjusting brightness:

I change its value to let's say 100

100 it's overkill, try 2 or 4. Also check '*brightness*' with the find command.

uxes

@mihael on mine miatoll it seems to be
/sys/devices/platform/soc/c440000.qcom,spmi/spmi-0/spmi0-05/c440000.qcom,spmi:qcom,pm6150l@5:qcom,wled@d800/backlight/backlight/brightness

and minimal value is 161, maximal is 4095

when i set from root to zero, it seems to be just black, that is fine i shall test minimal value at night

root@uxesPhone:/home/phablet# echo 1 > /sys/devices/platform/soc/c440000.qcom,spmi/spmi-0/spmi0-05/c440000.qcom,spmi:qcom,pm6150l@5:qcom,wled@d800/backlight/backlight/brightness

mihael

Thank you both, I found it: echo 10 > /sys/devices/platform/soc/5e00000.qcom,mdss_mdp/backlight/panel0-backlight/brightness - this is how I can manually change the brightness...

Next I'll see if I can modify somewhere the minimum value that the slider can adjust so that I will use the slider in the brightness menu and not the command line.