I've just upgraded on my Dell precision M6500 that is equipped with a Quadro FX 2800M to the latest Kubuntu release (11.04).
Everytime I open Konsole and resize that window, my system freezes (remote login is still possible)!
Due to the informations in the other thread (http://www.nvnews.net/vbulletin/show....php?p=2415191
) I've also tried the kernel parameters
enable_mtrr_cleanup mtrr_spare_reg_nr=1 hpet=disable
and the xorg.conf setting
Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerLevel=0x2; PowerMizerDefault=0x2; PowerMizerDefaultAC=0x2"
in any combination that gave a usable (although not perfect) system at the end of 10.10 - but that didn't show any difference.
What can I try to solve that?