Same problem here on a Zepto Znote 6615WD under Feisty Fawn (Herd 4 with latest upgrades, kernel 2.6.20-9-generic): the switch must be turned on at boot time to make sure it boots correctly (at least, while on batteries)
-- CPU soft lockup during bootup https://launchpad.net/bugs/63418 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs