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

[Michel Dänzer]

On Mit, 2012-08-08 at 15:18 +0200, Michel Dänzer wrote: 
> On Mit, 2012-08-08 at 05:00 -0700, Dan DeVoto wrote: 
> > 
> > Below is dmesg output with video=radeonfb:off in the kernel command line:
> [...] 
> > Aug  8 04:05:15 icebook kernel: [   10.769815] checking generic (9c008000 c0000) vs hw (98000000 8000000)
> > Aug  8 04:05:15 icebook kernel: [   10.769832] fb: conflicting fb hw usage radeondrmfb vs OFfb ATY,Fall_A - removing generic driver
> > Aug  8 04:05:15 icebook kernel: [   10.779698] Console: switching to colour dummy device 80x25
> > Aug  8 04:05:15 icebook kernel: [   10.782214] checking generic (98808000 5a000) vs hw (98000000 8000000)
> > Aug  8 04:05:15 icebook kernel: [   10.782235] fb: conflicting fb hw usage radeondrmfb vs OFfb ATY,Fall_B - removing generic driver
> 
> I heard that this handover from OFfb to radeon KMS can cause problems in
> some cases. Maybe you can try adding video=offb:off to
> video=radeonfb:off .

BTW, does the black screen occur only when X starts, or already when KMS
takes over from OFfb, which according to the above happens about 10
seconds after the kernel starts booting?


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