Radeon ( RV280 ) DRI2 status

Alex Deucher alexdeucher at gmail.com
Thu Jul 30 22:08:14 PDT 2009

On Fri, Jul 31, 2009 at 12:50 AM, Dan<dan at entropy.homelinux.org> wrote:
> Hi people.
> I have managed to get a KMS kernel booting without oopsing.
> radeon.agpmode=-1 does the trick. I have 2 problems now. Firstly, the mode
> that KMS brings up is out of sync for my LCD monitor. Does the driver detect
> the capabilities of the attached monitor, or does it use hard-coded
> defaults?

you need to load fbcon if you want a framebuffer console.

> Anyway, when X starts ( xf86-video-ati & mesa from git ), things come to
> life again. X reports that DRI2 has initialised. My next problem is that
> ecomorph & compiz run very, very slowly. The screen will redraw a small
> section, near where the mouse is, every 5 seconds or so. Is this to be
> expected? Or should I get usable performance in compiz?

Performance with the kernel memory manager is not up to the level of
the old driver yet.


More information about the xorg mailing list