maxadamo , I don't think it's an X server issue. In recovery mode, I run: xinit /usr/bin/xterm -e watch -n1 cat /proc/acpi/video/IGD/LCD/brightness It runs just fine, and I can play with the brightness without a problem.
maxadamo , I don't think it's an X server issue. video/IGD/ LCD/brightness
In recovery mode, I run:
xinit /usr/bin/xterm -e watch -n1 cat /proc/acpi/
It runs just fine, and I can play with the brightness without a problem.