http://bugzilla.kernel.org/show_bug.cgi?id=11769
------- Comment #21 from [EMAIL PROTECTED] 2008-11-11 20:34 -------
23:15 - Boot. Brightness goes up to 100%
23:17 - echo 62 > /proc/acpi/video/VGA/LCD/brightness. The actual brightness
changes, and that file has the correct value, but both backlight brightness
files (acpi_video0, acpi_video1) still say level 7 (100%).
23:19 - I go to console using Ctrl-Alt-F1. The actual brightness goes to 100%.
The /proc file still says 62%, but both backlight device files say level 7
(100%).
23:19 - Return to xorg (Ctrl-Alt-F7). Actual brightness is still at 100%, the
file values are unchanged.
23:21 - I press the brightness up/down switches a few times. The values in the
brightness files never change.
23:22 - echo {3,4} > /sys/class/backlight/acpi_vide0/brightness (a few times).
Actual brightness changes. the /proc file changes accordingly.
acpi_video0/brightness also changes, but acpi_video1/brightness remains the
same.
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