Been experimenting some more. I saw the post at: http://ubuntuforums.org/showthread.php?t=1084622
The op there also was complaining about not booting without nolapic. But that with nolacpic only 1 core works. They linked to: http://ubuntuforums.org/showthread.php?p=4890758 where they saw these boot options that worked for that user but not for them: noapic nolapic pci=assign-busses apicmaintimer idle=poll reboot=cold,hard However they were able to have some success by removing nolapic and just having it as: noapic pci=assign-busses apicmaintimer idle=poll reboot=cold,hard Those boot options worked for me too! But I continued experimenting. I managed to remove everything except for idle=poll. I understand though that this is a real power hog. But my laptop is always plugged in so that’s not "too" bad. I will continue testing it to see if there are any other issues with this option. If not I will probably change my default boot options from nolapic to idle=poll. I'll edit the title to reflect this new working boot option. ** Summary changed: - Cannot boot/run ubuntu without acpi=off or nolapic. Freezes otherwise. + Cannot boot/run ubuntu without "acpi=off" or "nolapic" or "idle=poll". Freezes otherwise. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1336451 Title: Cannot boot/run ubuntu without "acpi=off" or "nolapic" or "idle=poll". Freezes otherwise. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1336451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
