Also, have a look in /sys/class/backlight/... and see if you have any working entries that allow you to control the brightness by writing to them.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862835 Title: Unable to change laptop screen brightness or keyboard backlighting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1862835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
