Same problem on an Asus UX331U. In Ubuntu 18.04 setting kbd backlight worked, it's broken in Ubuntu 18.10.
Oct 1 17:43:19 avis gsd-power[2143]: gsd_power_backlight_abs_to_percentage: assertion 'max > min' failed i am able to manually control the backlight on the shell using sudo tee /sys/class/leds/asus\:\:kbd_backlight/brightness <<< 3 (replace 3 with [0..3] for brightness levels) ----------------------------------- rephlex@avis:[/proc]: ls /sys/class/leds/ asus::kbd_backlight asus::lightbar asus-wireless::airplane input4::capslock input4::numlock input4::scrolllock phy0-led ----------------------------------- root@avis:/sys/class/backlight# ls -la /sys/class/backlight/intel_backlight lrwxrwxrwx 1 root root 0 Okt 1 17:44 /sys/class/backlight/intel_backlight -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight root@avis:/sys/class/backlight# ls -la /sys/class/backlight/ insgesamt 0 drwxr-xr-x 2 root root 0 Okt 1 17:44 . drwxr-xr-x 70 root root 0 Okt 1 17:40 .. lrwxrwxrwx 1 root root 0 Okt 1 17:44 intel_backlight -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight ------------------------------------ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788021 Title: changing keyborad brightness doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1788021/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
