2.6.27-rc5 radeon kernel module can't load r300_dri.so - help?

[Daniel Stone]

On Mon, Sep 08, 2008 at 11:10:15PM +0200, Lars Oliver Hansen wrote:
> my glxinfo states libGL error: dlopen /usr/lib64/dri/r300_dri.so failed
> (/usr/lib64/dri/r300_dri.so: undefined symbol: _glapi_Dispatch)
> 
> I'm running kernel 2.6.27-rc5 with Ubuntu 8.04.1 (kernel
> 2.6.24-19-generic) environment. I let load drm and radeon modules from
> this rc5 kernel at boot. /dev/dri/card0 is present. I put the line
> 'Option "DRI" "true"' in my xorg.conf. I get the undefined symbol error
> as stated.
> 
> According to http://dri.freedesktop.org/wiki/DriTroubleshooting I would
> have to recompile the most recent libGL in case of undefined symbol
> errors. Now dri.freedesktop.org s hyperlink to libGL (some xc project on
> sourceforge) is unavailable and I didn't find a mention of libGL in the
> tree containg the zip files on a X.org mirror.
> 
> Which file(s) do I have to get fixed to get DRI working with my radeon
> driver? How would I get libGL? Which files would I have to compile to
> get a compatible r300_dri.so? What's the complete corresponding compile
> command?

Usually, this indicates that you still have fglrx installed.  Even if
you're not using it, fglrx provides its own libGL.so which is
incompatible with Mesa's, so you have to remove it before you can use
the open source driver.

Cheers,
Daniel
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