I was affected by this bug. Pressing Enter at any time forward from the login screen froze the system. No Ubuntu logo was visible during the boot, but there was a blue and white progress bar at the bottom of the screen.
Removing plymouth fixed the bug (removed it in Synaptic, not in safe mode) - reinstalling plymouth brought the problem back - removed plymouth again, and the bug is now gone (removing plymouth made the system freeze at shut down - had to reset) System: Ubuntu Lucid daily live of 13.2.2009 AMD 64 bit Nvidia Geforce 8800 GT with binary driver -- Pressing <Enter> causes X to freeze https://bugs.launchpad.net/bugs/516412 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs