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

Michel Dänzer daenzer at debian.org
Wed Aug 8 02:22:25 PDT 2012

On Mit, 2012-08-08 at 01:30 -0700, Dan DeVoto wrote: 
> --- On Tue, 8/7/12, Michel Dänzer <daenzer at debian.org> wrote:
> > 
> > > 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.
> Using video=radeonfb:off instead of radeon.modeset=0 resulted in a
> black screen, even when switching to a console.

Can you get the corresponding dmesg output, e.g. via ssh or
from /var/log/kern.log?

> I had to boot from an install cd in rescue mode to revert.

Doesn't yaboot allow specifying kernel command line parameters at its
prompt, so you don't have to make them permanent for testing? Even if it
doesn't, you could use a separate testing entry in yaboot.conf.

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

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