http://bugzilla.kernel.org/show_bug.cgi?id=12249





------- Comment #21 from rui.zh...@intel.com  2008-12-22 21:31 -------
(In reply to comment #19)

> When the brightness is at 100% and I run "cat
> /sys/class/backlight/acpi_video0/actual_brightness", I get a one line message
> added to dmesg:
> 
> [  552.353363] Rui: current level is 15, brightness count is 18
> 
what did you get of running "cat
> /sys/class/backlight/acpi_video0/actual_brightness" ?

please "echo 6 > /sys/class/backlight/acpi_video0/brightness"
and "cat
> /sys/class/backlight/acpi_video0/actual_brightness", what do you get in dmesg?


> The number after "current level is" seems to correctly reflect the brightness
> level, going from 0 (for 20% brightness) to 15 (for 100%).
> 


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