I just remembered that I had similar symptoms to the ones frequently
described on the dri-users list lately (screen goes to power saving
mode, system locked). It was after the cvs update that introduced
interrupt controlled frame throttling.
I noticed that my BIOS assigned IRQ 10 to the graphics card but lspci
and the Xserver log reported IRQ 5. I solved the problem by removing an
ACPI patch from my kernel (2.4.19) which obviously reassigned the VGA
interrupt. Since then everything works fine with IRQ 10.
__\|/__ ___ ___ ___
__Tschüß_______\_6 6_/___/__ \___/__ \___/___\___You can do anything,___
_____Felix_______\Ä/\ \_____\ \_____\ \______U___just not everything____
fxkuehl@... >o<__/ \___/ \___/ at the same time!