On Wed, Mar 14, 2012 at 11:37:39PM +0900, Akio Idehara wrote: > xfce4-power-manager cannot control backlight brightness via > toshiba backlight sysfs interface. > The reason is that xf86-video-intel doesn't treat it. > This patch adds support for toshiba backlight sysfs interface. > > This was tested on a Toshiba Portege R500. > > Signed-off-by: Akio Idehara <zbe64533@xxxxxxxxx> This isn't a good idea. On many (probably most) Toshibas the platform backlight interface is read-only. I think this patch will break more machines than it fixes. I have a patch for toshiba_acpi that (among other things) makes it only register the backlight device if it can be written. I've just been sitting on it though because I haven't been able to get anyone with a read/write backlight interface to test it. If you'd be willing to help with testing then I can work on getting that patch into the kernel, then I wouldn't object to your patch. Seth -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html