Hey,
I tried as here was mentiones to play with the brightness. I see the value of 255 in /sys/class/backlight/rpi_backlight/brightness . However, when I lower it on like 200 (and save it), nothing happens with the brightness - it is still on 100%.
But what is odd - if I change it to value 110, the brightness goes to zero. Probably for me there is just 0-128 is 0%, 129-255 is 100% and nothing between.
What the hell? Any ideas? :-)
Thanks
Matt