http://bugzilla.opensuse.org/show_bug.cgi?id=1202566 http://bugzilla.opensuse.org/show_bug.cgi?id=1202566#c7 --- Comment #7 from Takashi Iwai <tiwai@suse.com> --- (In reply to ted chang from comment #4)
Created attachment 860941 [details] dmesg output with 0x0e
cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.0.0-rc1-3.g7bd57d5-default root=UUID=67e5381b-1f65-49ec-9b58-2e392c6b5d9a splash=silent resume=/dev/disk/by-uuid/eeb7aaf9-93ab-4dc2-841a-c09ada050b9f mitigations=auto quiet security=apparmor drm.debug=0x0e
Thanks. This indicated the standard backlight. Could you test the following? - Boot without drm.debug option, but with amdgpu.backlight=0 option. - Verify whether you can control the backlight - If yes, turn on the debugging echo 0x0e > /sys/module/drm/parameters/debug then go to hibernate. Do resume, and get the dmesg output. Turn off the debug again echo 0x00 > /sys/module/drm/parameters/debug - If the backlight isn't controlled properly with amdgpu.backlight=0 option, try amdgpu.backlight=1 option instead. Then perform the same procedure as above (debug-on/hibernate/debug-off). Upload the dmesg output taken in the test above. -- You are receiving this mail because: You are the assignee for the bug.