I tested the latest kernel on the affected machine and can confirm that the bug is fixed. The affected machine correctly reads "legacy DMI" information and ACPI works without acpi=force boot parameter.
** Changed in: linux (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1161134 Title: Regression: Kernel 3.2.0-39 misreads DMI on some machines, disables ACPI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1161134/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs