2.6.38-11-generic re-introduced old bug on Gateway FX6850-51u

[Brian Vaughan]

> I'm bringing this up, since I think I was actually able to reboot the
> system without it hanging once or twice between applying last kernel
> upgrade, and switching back to grub-efi.
> 
> I'm not sure how and why would choice of boot loader (grub-pc vs.
> grub-efi) affect shutting down the system, but it looks like it does
> in some odd way!?
> 
I've been having a similar issue with my Gateway DX4850: sometimes it
shuts down or reboots cleanly, sometimes it hangs, after all the system
services have stopped. I can switch to console login prompts, but not
actually log in. Manually powering off the box is necessary. My system
is set up for dual booting, and the other operating system doesn't hang
when rebooting or shutting down, so I don't think it's a hardware issue,
per se.

When I installed Ubuntu on this system, it used grub-efi-amd64, and I've
been using that -- there was a system update I delayed, as it wanted to
replace grub-efi-amd64 with grub-pc, and that seemed like something to
avoid changing.