I have the same problem. Have tried all video driver options in settings. I must boot with nomodeset in order to see something different from a black screen, which looks the same as the black screen described in the bug. My dmesg output is attached.
** Attachment added: "full_dmesg" https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1173493/+attachment/3849362/+files/full_dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173493 Title: Unable to resume after screen has locked on ubuntu 13.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1173493/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
