This morning I had an update for both gdm and nvidia, so I thought I would try it all again. So, I did sudo nvidia-xconfig, but no success. I decided to reinstall nvidia-glx package again, but it still didn't work - just the blank screen.
-- [feisty] X is blank after upgrade https://launchpad.net/bugs/82312 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs