On my server, I tried the kernel parameter (acpi=force) restarted the machine and tried shutting it down. It now works and turns off as expected. I think the bug is more related to the bios and acpi than to Xorg. I know that for some people the option acpi=force still does not work. I am thinking that the issue might be related to something in the bios like power management. **wild guess**
If it helps anyone, my grub boot entry now looks like this. title Ubuntu, kernel 2.6.15-26-server root (hd0,1) kernel /boot/vmlinuz-2.6.15-26-server root=/dev/hda2 ro quiet splash acpi=force initrd /boot/initrd.img-2.6.15-26-server savedefault boot -- Power down after shutdown does not work... https://launchpad.net/bugs/43961 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
