Problem solved! It amounted at adding these two lines to /etc/modprobe.d/options
options nvidia NVreg_SoftEDIDs=0 options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222" this also solves screen flickering and other strange hangs which occur with the generic kernel. I found this in [https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.17/+bug/53060 #53060] -- [nvidia-glx-new] CharacterConsole+Compiz/Beryl crash https://bugs.launchpad.net/bugs/115267 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs