Bug#683796: xserver-xorg-video-radeon: No 3D acceleration in iBook2 powerpc

Michel Dänzer daenzer at debian.org
Tue Aug 7 06:11:43 PDT 2012

On Die, 2012-08-07 at 04:38 -0700, Dan DeVoto wrote: 
> --- On Mon, 8/6/12, Michel Dänzer <daenzer at debian.org> wrote:
> > > 
> > > [   36.987427] [drm] radeon defaulting to kernel modesetting.
> > > [   36.987452] [drm] radeon kernel modesetting enabled.
> > 
> > You should probably disable KMS with radeon.modeset=0 on the kernel
> > command line. You can also disable radeonfb with video=radeonfb:off, but
> > KMS may not work very well with your card.
> After adding radeon.modeset=0 to my bootloader, still no change with glxinfo:
> dan at icebook:~$ glxinfo | grep render
> direct rendering: Yes
> OpenGL renderer string: Software Rasterizer
>     GL_EXT_vertex_array_bgra, GL_NV_conditional_render,
> Though the error messages in my Xorg.0.log file are different, specifically:
> [    39.505] (EE) AIGLX error: radeon does not export required DRI extension

Ah, so your version of libgl1-mesa-dri doesn't have non-KMS support.
Upstream Mesa dropped it in 8.0.

> Also, adding video=radeonfb:off did nothing but make my screen darker
> and disable my brightness hotkeys, and there was no change in the
> error messages, so I removed the line.

Note that I meant using video=radeonfb:off instead of 
radeon.modeset=0, to allow radeon KMS to initialize. However, note that
KMS doesn't support suspend/resume on PowerPC laptops yet.

Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer

More information about the xorg-driver-ati mailing list