Hi Flavio. I believe I ran into this or a similar bug when updating an etch system from roughly 28 Feb. 2007 to 7 March 2007. This brought in a new kernel and a new build of the X.org packages, but the fglrx packages didn't change. 2-d graphics were painfully slow; for example, it took ~3 seconds for the K menu to display in KDE, during which time the rest of the screen was completely frozen. Rebooting to the previous kernel (2.6.18-3-686) seemed to fix the problem, even though nothing in the change to -4-686 should have had anything to do with this driver. After banging my head against it for a little while, I decided to try a hunch and powered the machine off for ~30 minutes. When I turned it back on, things seemed to be fixed, which leads me to think that there's some register set somewhere that isn't cleared out by a reboot, but only gets cleared when the machine has been powered off.
I imagine 30 minutes is much longer than was needed, but that's how long my train ride to work is. :) I suspect that this problem is either an upstream issue or a kernel issue (maybe in agpgart or something). In any case, there's probably nothing you can do about it in the package. noah
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