Hello, My SONY VGN-AR41L laptop could't change the brightness (my graphics card is nvidia 8400M GT with nouveau driver installed) because it changed the brightness in the file /sys/class/backlight/sony/brightness instead of /sys/class/backlight/nv_backlight so I made modification in order to do the job and know it works for me. If you want more details about the patch don't hesitate to ask. I hope my patch be accepted (it's my first time) Thanks LD
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0001-I-have-added-the-ability-to-recognize-if-there-is-no.patch
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