Comment 1 for bug 1103626

toshiba satellite S875 w/ radeon hd 7600m GPU

same problem; not able to adjust backlight. its always on at 100% in mint 14.

i did make SOME headway. i was testing in ubuntu 12.04 and booted over to win8 [blech] where i uninstalled the toshiba f keys addition. that allowed ubuntu to adjust the brightness from the control panel but not from the f-keys. mint is so far not able to modify the backlight.