Hi, we've received a regression report on openSUSE Bugzilla about the missing backlight control of nouveau device: https://bugzilla.opensuse.org/show_bug.cgi?id=1209296 On 6.1, with acpi_video=native option, the system provided /sys/class/backlight/nv_backlight entry. On 6.2, with acpi_video=native option, there is no entry in /sys/class/backlight. And without acpi_video option, it falls back to /sys/class/backlight/acpi_video0, which doesn't work as expected. Hans, could you check whether the recent change in video_detect.c (or anything else) may influence on this? My gut feeling is that the culprit could be rather some change in nouveau (so dri-devel is Cc'ed), but I'm not entirely sure... Thanks! Takashi
