Have you tried to play with some kernel parameter related to acpi? such as acpi=off, pnpbios=off, pci=noacpi ...etc?
According to wcgbg, the bug started from 2.6.24-15-generic, and when I check the change log. There is a change made related to ACPI. http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_2.6.24-16.30/changelog linux (2.6.24-15.26) hardy; urgency=low [Colin Ian King] * airprime.c supports more devices - LP: #208250 [Kees Cook] * AppArmor: get latest batch of upstream fixes into Hardy (svn 1160) [Stefan Bader] * ACPI: fix boot oops regression in kernel - LP: #207014 Also, perhaps tried to update the BIOS and see if it helps. -- dell xps 410n won't reboot - regression https://bugs.launchpad.net/bugs/213754 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
