This has just started happening today on my 13.04 64-bit install . Yesterday updates to 3.8.0-19 were installed, don't know if that's just a coincidence.
Have added "sleep 2" as per comment #16, still got the issue. This install is only about 1 week old, and was done from fresh (not an upgrade). "sudo service lightdm restart" gets me in at least, but it's a PITA. Lenovo x121e, Intel Core i3-2367M with an Intel SSD. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070150 Title: Intermittent black screen or low graphics mode message To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1070150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs