http://bugzilla.opensuse.org/show_bug.cgi?id=1180591
http://bugzilla.opensuse.org/show_bug.cgi?id=1180591#c6
--- Comment #6 from Maurizio Galli
Could you give the output of hwinfo and the output of dmesg?
See attachemnts
Also, try to adjust the brightness by manually writing to sysfs files /sys/class/backlight/*/brightness. The value ranges are found in /sys/class/backlight/*/max_brightness. e.g. on my laptop, I can change it like echo -n 200 > /sys/class/backlight/intel_backlight/brightness
There might be multiple entries in /sys/class/backlight and you can try each of them.
I tried and it did not help.
And, if it used to work with Leap kernel, could you try to install the latest Leap 15.2 kernel on the current system (with zypper install --oldpackage option), boot with it and test whether the brightness works? If Leap 15.2 kernel works, give again the output of hwinfo and dmesg from it.
I still had the Leap 15.2 kernel installed and booting into allows me to change backlight. hwinfo and dmesg are attached. The issue only happens if I boot into the current TW kernel 5.10 -- You are receiving this mail because: You are the assignee for the bug.