Ubuntu 9.04 fails to log on (regardless of session)
I had just installed the latest development updates on my Ubuntu 9.04 laptop, and a very strange problem appeared. Other than the fact that the automatically generated initrd does not work, whenever I try to log on using gdm, it will seem like its logging in, and then go to a black screen with randomly vertical colored lines streaking a part of the screen. It then returns back to the login screen. This happens regardless of whether I am logging into GNOME, KDE, etc. Furthermore, if I try switching to tty1 and logging in from command line, the screen will just freeze and fixate on those same vertical lines until I switch back to the login screen.
Furthermore, if I shutdown, the standard shutdown messages (* Shutting down this daemon: [OK]) are loaded onto the screen in pairs, one set on the left side of the screen, and one side on the right. I will try and get pictures if possible, but direct screenshots are out of the question, as I cannot even log on.