2010/2/3 Stephane Marchesin <stephane.marche...@gmail.com>:
> Really if you have such lockups they may also happen on x86, did you
> try the card there?

Hello,

I had some free time. So I've tried my FireGL X1 adapter on x86
hardware, no problem.

I don't know if it can provide valuable information, but I've also
tried an AGP Radeon 7500 graphics adapter in my ia64 system.

Without a xorg.conf file, AGP rate was automatically set at 4x, w/ SBA
and w/o FW. XAA acceleration was enabled by default. I did not
experience any problem with tiny OpenGL applications, like glxgears
(~380 fps in average). As a test, I ran quake2 : textures on the walls
and the floor were quickly corrupted, as if a translucent rainbow
color texture was blended with the wall/floor texture. And within
seconds, screen refresh was frozen, as if the application locked the
system hard. But it was not: top reveals no abusive CPU usage, quake2
process was killed and X restarted without a problem.

I've then tried EXA acceleration. I didn't succeed in reproducing the
problem again since then, but I've experienced two GPU lockups when I
was simply moving a terminal window in the GNOME desktop environment
(reducing AGP rate didn't help). Running glxgears gave ~390 fps in
average. Under quake2, the floor and wall textures were OK. But the
screen freezes as with XAA acceleration.

As a last attempt, I've also tried an AGP Radeon 9600 Pro graphics
adapter. My ia64 system didn't POST at all.

Cheers,

Émeric

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