Bug#572926: xserver-xorg-video-radeon: (EE) RADEON(0): [dri] RADEONDRIGetVersion failed because of a version mismatch

[Pauli Nieminen]

On Sun, Mar 7, 2010 at 8:19 PM, Andres Cimmarusti <acimmarusti at gmail.com> wrote:
> Package: xserver-xorg-video-radeon
> Version: 1:6.12.5-1
> Severity: normal
>
> I waited till today to upgrade my xserver-xorg-video-radeon package to the
> version in unstable (6.12.5), mainly because I was waiting for mesa (7.7) to
> migrate to testing.
>
> Unfortunately I have to report it does not correct my problems. I have KMS in
> this laptop which works well, but DRI is disabled due to some kind of conflict
> with the kernel version which really makes no sense! look for yourself:
>
> (EE) RADEON(0): [dri] RADEONDRIGetVersion failed because of a version mismatch.
> [dri] radeon kernel module version is 2.0.0 but version 1.8.0 or newer is needed.
> [dri] Disabling DRI.

6.12 doesn't support KMS. You have to either disable KMS
(radeon.modeset=0 kernel parameter) or install 6.13 (aka 6.12.99)