I have the same problem with a P5GD1 Pro and latest feisty kernel (2.6.20-5-generic), running the latest beta BIOS from ASUS (1013). The problem has been persistent in every kernel since i ran Dapper on the machine. However if i run `shutdown -h now` on the root console from booting Recovery mode, it shuts down just as it should. It also shuts down perfectly if i choose shutdown from the KDM login screen, however if i log in to X, then all my chances to get it to shut down by itself are lost.
-- [Dapper] Shut Down won't power off https://launchpad.net/bugs/42160 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
