http://bugzilla.kernel.org/show_bug.cgi?id=11682





------- Comment #12 from [EMAIL PROTECTED]  2008-11-04 01:59 -------
I played with these files in /proc/acpi/video/GFX0, but without success. First
I checked:

sony:/proc/acpi/video/GFX0 # cat DD01/brightness
<not supported>
sony:/proc/acpi/video/GFX0 # cat DD02/brightness
levels:  100 100 4 16 28 40 52 64 76 88 100
current: 100
sony:/proc/acpi/video/GFX0 # cat DD03/brightness
<not supported>
sony:/proc/acpi/video/GFX0 # cat DD04/brightness
<not supported>
sony:/proc/acpi/video/GFX0 # cat DD05/brightness
<not supported>

Next I tried writing to DD02/brightness:

sony:/proc/acpi/video/GFX0/DD02 # echo 76 > brightness
sony:/proc/acpi/video/GFX0/DD02 # echo 64 > brightness
sony:/proc/acpi/video/GFX0/DD02 # echo 40 > brightness
sony:/proc/acpi/video/GFX0/DD02 # echo 16 > brightness
sony:/proc/acpi/video/GFX0/DD02 # echo 4 > brightness
sony:/proc/acpi/video/GFX0/DD02 # cat brightness
levels:  100 100 4 16 28 40 52 64 76 88 100
current: 4

But my PANEL is still on max level of brightness :(


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