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Old 08-08-10, 08:25 PM   #69
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Join Date: Aug 2010
Posts: 1
Default Re: Linux backlight driver

hi guys! reading about this module gave me hopes for getting backlight control in ubuntu for my macbook pro 15".

i compile the driver, load it successfully


echo 7 > /sys/devices/virtual/backlight/nvidia_backlight/brightness
does nothing.

i have these two cards in my ubunu 10.04 laptop

mamo@xerxes:~$ lspci |grep -i vga
02:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9600M GT] (rev a1)
03:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M] (rev b1)

the one connected to my panel is the the 9400M one.

I figured that maybe the second card interferes somehow , so i commented away the vendor string for the 9600M card in the sources, but still no difference.
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