[arch-general] xf86-video-ati, xbrightness and KMS bug

Mauro Santos registo.mailling at gmail.com
Mon Feb 14 05:12:11 EST 2011

On 14-02-2011 09:40, Fess wrote:
> Hi guys.
> I've switched to xf86-video-ati from fgrlx and have some troubles with
> changing brightness level.
> xbrightness tells me: "No outputs have backlight property". 
> With fgrlx it worked like a charm.
> If anyone have a solution - it will be great.
> P.S.
> My keyboard dead now, so i have to use discrete, and have no FN buttons.

Look in /sys/devices/virtual/backlight/acpi_video0, you should be able
to change brightness by echoing a value to 'brightness'

> I have asus x61s.
> Video: Ati Radeon HD4570 and enabled KMS. Without KMS X won't start.
> Kernel: 2.6.37-5
> Driver: 6.14.0-1
> xorg.conf.d file: http://paste.pocoo.org/show/338214/

That's how it's supposed to be, afaik the drivers don't support UMS anymore.

Mauro Santos

More information about the arch-general mailing list