as a workaround, you can boot with 'single' added to your bootline, and then apt-get install nvidia-glx, and changing Driver "nv" into Driver "nvidia" and then rebooting. This will use the official nvidia drivers instead of the opensource ones, who are causing the trouble.
as a workaround, you can boot with 'single' added to your bootline, and then apt-get install nvidia-glx, and changing Driver "nv" into Driver "nvidia" and then rebooting. This will use the official nvidia drivers instead of the opensource ones, who are causing the trouble.