Having slow boot too (approx 1.5 minutes) after upgrade from 14.10 to 15.04 and getting "Starting version 219" error to "ACPI PCC probe failed" message with Nvidia drivers installed. Nouveaux works ok but still sluggish boot. May try fresh install of 15.04 on another HDD (same PC) to see if problem due to upgrading and not effecting fresh install.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447978 Title: After update from 14.10 to 15.04 boot stops at black screen displaying "Starting version 219" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1447978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs