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Published 20 hours ago • verified publisher icon DougieLawson

No brightness

Open buddhi-deep opened this issue 3 years ago • 2 comments

/sys and the following directories no bright ness

buddhi-deep avatar Mar 13 '21 02:03 buddhi-deep

If you do not have anything in /sys/class/backlight/ then you should first enable the corresponding device tree overlays for your display. Also you should know that some displays don't support brightness control at all. Personally I had to make a hardware mod to my 3.5" display shield to enable brightness control (unsolder one resistor and add in a transistor + another resistor).

MarSoft avatar Aug 20 '23 12:08 MarSoft

on my Raspi is the folder /sys/class/backlight/10-0045/actual_brightness. I change the three folder in the timeout.c and do a new make and it's work

kirk-loeten avatar May 22 '24 08:05 kirk-loeten