Philip, this seems to possibly have something to do with ACPI (in part), which is the power management in general. It's either that, or it's the kernel recognizing the power supply much as it would recognize a usb device (since there's been reports that plugging in a USB device has much the same behaviour as you are describing).
-- System freezes during boot, unless I hold a key down https://bugs.launchpad.net/bugs/272247 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs