https://bugzilla.kernel.org/show_bug.cgi?id=63941
--- Comment #5 from Nikolay Amiantov nikoamia@gmail.com --- Is there any way to trace ACPI calls and Intel card state (enabled or not) on Windows? It works there, so maybe I can get some information. 29.10.2013 17:32 пользователь bugzilla-daemon@bugzilla.kernel.org написал:
https://bugzilla.kernel.org/show_bug.cgi?id=63941
Alex Deucher alexdeucher@gmail.com changed:
What |Removed |Added
CC| |alexdeucher@gmail.com--- Comment #4 from Alex Deucher alexdeucher@gmail.com --- The radeon driver should add a backlight control if the platform utilizes the GPU's backlight controller. If there is no radeon backlight interface, the platform uses some OEM specific backlight control (probably Intel or ACPI). I suspect you will have to use the intel backlight control to control the backlight.
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