I've had the same problem on my ASUS P4B mainboard computer. It seems that acpi=ht is forced because this mainboard is present. This leads to acpi only be enabled until hyper-threading would be activated.
As my proc won't support hyperthreading, this is not usefull. I found that only acpi=force would supercede this acpi=ht mode set by the kernel. So far, adding acpi=force to grub's kernel command-line seems to solve this issue. I hope there won't be any side effects. Hope this helps. -- PC does not power down after shutdown or hibernate https://bugs.launchpad.net/bugs/104868 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
