I plugged the second monitor to VGA output (first was plugged to DVI), and artefacts disappeared from both screens (during the boot and after Alt+Ctrl+F[n]). Then I disconnected first monitor (from DVI) and after reboot all was also OK. I think this can help to correct the bug.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/731576 Title: Wrong switch to text consolet by Alt+Ctrl+F[1-6] -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs