On my Macbook, the backlight can be handled either by managing the registers directly (not fun) or though Xrandr: $ xrandr --props ... BACKLIGHT_CONTROL: native supported: native legacy combination kernel BACKLIGHT: 212 (0x000000d4) range: (0,296) ... $ There are two parameters: * BACKLIGHT_CONTROL which sets the way the driver ndle the backlight settings (in my case "native" works best) * BACKLIGHT which sets the actual backlight value, between 0 and 296 Using this way of setting the backlight works. Perhaps this could be included in the xfce4-brightness-plugin?
(In reply to comment #0) > On my Macbook, the backlight can be handled either by managing the registers > directly (not fun) or though Xrandr: > > $ xrandr --props > ... > BACKLIGHT_CONTROL: native > supported: native legacy combination kernel > BACKLIGHT: 212 (0x000000d4) range: (0,296) > ... > $ > > There are two parameters: > * BACKLIGHT_CONTROL which sets the way the driver ndle the backlight settings > (in my case "native" works best) > * BACKLIGHT which sets the actual backlight value, between 0 and 296 > > Using this way of setting the backlight works. Perhaps this could be included > in the xfce4-brightness-plugin? All the code for handling lcd brightness will be move to xrandr once xrandr is good enough for that, i already tried it on my 3 laptops, and on none of them it gives good result. So i would say this is going to happen on the device-kit power based version.