I'm currently running Ubuntu 12.10 on a desktop with a nVidia GT 640 that is giving me alot of problems. Everytime I boot, I get a mouse cursor over a blank black screen.
nomodeset gives me full resolution on only one of the monitors, but only over a reduced screen area (it's really weird). I've narrowed it down to the fact that merely setting
acpi=off in GRUB will enable this.
The strangest part is that I can get it to work. If I totally reinstall the mesa package using
sudo apt-get --reinstall install libgl1-mesa-glx and use the default driver (the open source one) then I get a boot where both monitors are recognized at full resolution, no problem. However, once I restart, the same error happens.
Is there a way I can get these monitors to be recognized on the first try, no problem? Thanks.
p.s. I'm dual booting and everything works fine on Windows, so I don't think any of the hardware is faulty (just poorly programmed :. I don't really like windows, however, I prefer Ubuntu.