Hipolit Kwass, could you please boot into the computer with the offending hardware, use the WORKAROUND acpi=off to boot into the OS, and execute at a terminal: apport-collect 1243431
** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Importance: High => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1243431 Title: Ubuntu 13.10 64bit installer won't boot unless acpi=off on Dell Optiplex 745 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1243431/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs