Hi, I have a similar issue: I am testing Lucid on a PC (amd64) )with two nVidia cards (one 9600GT with two screens attached, and ont GTX295 for CUDA computing). Kubuntu (beta2) installs fine, and works all right with the nouveau driver. Since I need CUDA, I installed nvidia-current (195.36.15), and after reboot the system hard-freezes right around the time the graphics should appear - I assume that's exactly when the nvidia module is launched, though I do not have a log to show immediately.
If I remove any of the cards, everything works all right (still with the nvidia 195.36.15 driver). Note that this is from a Lucid beta2 clean install, after all available updates have been installed (-generic or -server kernel makes no difference). The most annoying part is that when this happens, for some reason I am not even able to boot in recovery mode, the PC also crashes... The only solution is to reboot with only one card. There are a few messages related to this in the nVidia forums, although no working solution has been reported. See for example: http://www.nvnews.net/vbulletin/showthread.php?t=149415 I tried disabling the VGA Arbiter in the kernel as suggested, but apparently the kernel VGA_ARB option is automagically turned backed to 'yes', due to some kernel config dependency I have not yet found... -- Cannot install nvidia 195.36.15 - crashes system https://bugs.launchpad.net/bugs/548362 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs