https://bugzilla.kernel.org/show_bug.cgi?id=155711

Zhang Rui rui.zhang@intel.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Component|Power-Video |Video(DRI - non Intel) Assignee|rui.zhang@intel.com |drivers_video-dri@kernel-bu | |gs.osdl.org Product|ACPI |Drivers

--- Comment #9 from Zhang Rui rui.zhang@intel.com --- xbacklight has native ways to control backlight IMO, but this interface is not exposed to users via backlight sysfs I/F. ACPI video backlight control is known to not work for many platforms, and that's why we have /sys/class/backlight/intel_backlight. For this platform, as the hotkey events works well, it just lacks of a working kernel I/F to change backlight, let's reassign this to nvidia kernel graphics driver.