Cannot get radeon hd4290 working with KMS

A. Bischof a.bischof at
Tue Mar 29 02:46:25 PDT 2011

Am 29.03.2011 11:24, schrieb Michel Dänzer:
> On Die, 2011-03-29 at 11:07 +0200, A. Bischof wrote:
>> But performance is still slow - I know glxgears is no benchmark,
> Indeed, it's not.
>> but I get 850FPS without KMS - maybe because of agpmode=-1?
> Maybe.

ok, I'll try this.

>> And btw, System Settings in KDE tells me "Compositing is not supported
>> on your system".
> IIRC the KDE check for this doesn't always work correctly and can be
> overridden. If that still doesn't help, you could try using the XRender
> backend for compositing.

Hm, no idea how to do this - override and XRender backend - could you 
tell me? XRender is maybe about xorg.conf I guess?

At the moment I use an almost empty xorg.conf - should I try using 
options like

Option "RenderAccel" "1"
Option "AccelMethod" "EXA"

Option "XAANoOffscreenPixmaps"
Option "AccelDFS" "off"
Option "AGPMode" "8"
Option "AGPFastWrite" "1"
Option "EnablePageFlip"
Option "ColorTiling"

Would it be helpful to load certain modules via xorg.conf?


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