Bug#569098: xserver-xorg-video-radeon: Xvideo apparently not working with KMS enabled

[Pauli Nieminen]

On Wed, Feb 10, 2010 at 9:00 PM, Andreas Rottmann <a.rottmann at gmx.at> wrote:
> Alex Deucher <alexdeucher at gmail.com> writes:
>
>
>>>From your log:
>> (II) RADEON(0): GPU accel disabled or not working, using shadowfb for KMS
>>
>> Check your dmesg.  You are probably missing the rlc ucode for the
>> interrupt controller.
>>
> Indeed. I've now downloaded and installed the ucode from
> http://people.freedesktop.org/~agd5f/radeon_ucode/ as in indicated by
> Bug #565437. However I still get the same results from xvinfo and
> mplayer.
>

Kernel modules is not loaded before X starts so wrong code path is
selected for KMS kernel. You can try
http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.ati/12853
patch to make xserver load radeon before checking if KMS is supported.