http://bugzilla.kernel.org/show_bug.cgi?id=15575


Zhang Rui <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Power-Video                 |Video(DRI - Intel)
         AssignedTo|acpi_power-vi...@kernel-bug |drivers_video-dri-in...@ker
                   |s.osdl.org                  |nel-bugs.osdl.org
            Product|ACPI                        |Drivers




--- Comment #8 from Zhang Rui <[email protected]>  2010-03-19 03:10:01 ---
This is not a Linux/ACPI bug because the backlight is not controlled via ACPI.

IMO, the problem is that the graphics driver fully rely on the backlight sysfs
I/F, and doesn't support the native backlight switching any more.

Matthew wrote a patch to fix this, but I don't know the current status.

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