My problems with this initially seemed to have gone away when I added "acpi=force lapic" to the boot line. But I have since had failed powerdowns; it improved the behaviour of the machine, but it was not a complete fix, unfortunately. They say that a mule will work faithfully for you for 20 years just to get a chance to kick you once. Another year of this, and it will be time to consider a change in the Linux masot. :)
I am now trying to discover whether the freeze happens at a consistent point in the shutdown process. Removing LVM did not seem to help, so I will be restoring that. In the final /etc/init.d/halt script, I have removed the -i and -h options (down network and down disks) from the halt command, and added a bunch of sleep/retries. If the problem persists, I will try using plain "init 0" to shut down, and see if that's related. This is a real bugger, this bug. -- Power down after shutdown does not work... https://launchpad.net/bugs/43961 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
