cannot adjust screen brightness only as root - some privileges problem
I cannot change screen brighntess whether it is via g panel, xfce panel, xrandr, xbacklight or keyboard. I start gnome session as root and it worked so defo problem with privelieges.
I pasted ls-l of a folder which /sys/class/backlight/intel_backlight
symlink points at (where the actual files are /sys/devices/..../intel
put it on pastebin caus of better format option https://pastebin.com/DipG5TVS
I've also created /etc/udev/rules.d/backlight.rules
and added those lines
ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="intel_backlight", RUN+="/bin/chgrp video /sys/class/backlight/%k/brightness"
ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="intel_backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness"
according to the https://wiki.archlinux.org/index.php/... but that doesn't do anythign about that Thanks Rob