> > The buttons worked all the time. You just get rid of the warning message > > (and perhaps stop the keyboard driver from passing on the brightness key > > events to userland). > > With 2.4.21, they never worked on my PowerBook (bug 202602). > Did anything change in 2.4.22?
Can't tell for 2.4.21 but there doesn't seem to be any change in the Mac or input drivers from 2.4.20 to 2.4.22 (aside from code cleanup). Make sure you have CONFIG_PMAC_BACKLIGHT set in your kernel config. Michael