I was able to circumvent the error by pressing Ctrl-Alt-F1 and then Ctrl-Alt-F7, which brought me to a graphical screen with the LUKS password prompt.
Then, installation of Nvidia proprietary drivers seems to change the boot sequence so that it falls back to usable text mode on my ThinkPad T61p. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/699802 Title: error:: no video mode activated To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/699802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs