Xorg problem: DRI not being loaded (and so poor OpenGL performance)

Luke Sharkey lukesharkey at hotmail.co.uk
Thu Dec 14 00:41:29 UTC 2006


Hi

I have a Radeon XPress 200M card, and am running FC 5 x86_64.  Having had 
months of trying to get ATI's lousy proprietary driver for my card to work, 
I was happy to discover upon installing the (2187?) kernel some time ago 
that the opensource radeon driver now supported my card.

Unfortunately, I am getting only about 440 FPS  (today in fact it was as low 
as 380).  Until now, I thought this was a problem with the driver, but 
recently after some research,  I found this was a problem to do with DRI 
being loaded, as part of Xorg.


Sure enough, I checked /var/log/Xorg.0.log, and found errors along the lines 
of:

drmOpenDevice: node name is /dev/dri/card254
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: Open failed
(EE) RADEON(0): [dri] RADEONDRIGetVersion failed to open the DRM
[dri] Disabling DRI.
(II) RADEON(0): Detected total video RAM=31744K, accessible=131072K (PCI 
BAR=131072K)

Q>    So why is DRI not being loaded and enabled? How can I fix this and so 
boost fps for my graphic card, or is this a bug?  At these fps, opengl is 
not really usable.

Would updating any packages I have or updating to Core 6 fix this problem?   
(Some suggestions I found on cyberspace were to "update your DRI"...)


Thanks,
LS


Relevant sections of my xorg.conf:
Section "Module"
	Load  "dri"
...
Section "DRI"
	Group        0
	Mode         0666
EndSection
.

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