Some additional experience with this problem has shown me that: 1) I can no longer *ever* see a boot menu, on either cold boot or reboot, during the normal boot sequence.
2) If I rapidly press the ESC key while the aforementioned border is drawing and vislble on the screen, after several seconds the usual grub boot menu will appear and it works more or less normally. It appears to have poor keypress sensitivity (sometimes I have to push an arrow key more than once for the menu selection to change) and it is quite slow, but it is at least visible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1318865 Title: The grub boot menu is often not drawn or visible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1318865/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs