I have solved the problem -- upstream bug on the Linux kernel bugzilla linked.
Changing the kernel boot parameters to solely "acpi_skip_timer_override" in /etc/default/grub results in the motherboard reliably booting and suspending/resuming. This appears to affect a wide range of desktop Gigabyte AM2+ desktop motherboards as well as other manufacturers (ASUS and Toshiba mentioned in the upstream). ** Bug watch added: Linux Kernel Bug Tracker #15289 http://bugzilla.kernel.org/show_bug.cgi?id=15289 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=15289 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/658955 Title: Natty fails to boot on Gigabyte GA-MA78GPM-UD2H To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/658955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
