in Ubuntu, upgrading from onboard vga card to PCI video card hung the system on start up
I installed a PCI video card (Nvidia GeForce FX 5200 128MB PCI from EVGA) into my Ubuntu 8 system (on a Dell e510 machine) which was previously running on board video. When i booted the system, disabled the onboard vga in the system BIOS, which allowed the PCI video card to output video. However, my system hung on startup. I imagined it had to do something with the drivers, so i tried to edit the /etc/X11/x.conf file to remove any drivers, but it looks as if everything is generic, so i'm not sure what's wrong.