http://bugzilla.novell.com/show_bug.cgi?id=549994
http://bugzilla.novell.com/show_bug.cgi?id=549994#c6
--- Comment #6 from Matthias Hanisch 2010-02-10 00:23:30 UTC ---
About the sys interface, I do not know how it should work. Here are the initial
settings:
pingu:/sys/devices/virtual/backlight/acpi_video0 # cat actual_brightness
brightness max_brightness
0
0
9
It seems that I can set (only) brightness using echo. As with /proc, it seems
to "eat" the value, but there is no change in the brightness:
pingu:/sys/devices/virtual/backlight/acpi_video0 # echo 8 > brightness
pingu:/sys/devices/virtual/backlight/acpi_video0 # cat actual_brightness
brightness max_brightness
8
8
9
This is with 2.6.33-rc6.12 (Kernel:/Head repository) on Acer Extensa 5635Z. If
you want me to try kernel patches or perform other tests, I am happy to do
that.
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