Bug#623308: linux-image-2.6.38-2-amd64: Lenovo X200 laptop fails to power down under 2.6.38

[Jason White <jason@jasonjgw.net>]

Moritz Mühlenhoff <jmm@inutil.org> wrote:
> On Mon, Apr 25, 2011 at 11:29:13AM +1000, Jason White wrote:
> > Laptop-mode appears to be the cause; can you reproduce the bug by enabling it
> > on your X200?
> 
> How did you activate the laptop mode on your system?
> 
> If I install laptop-mode-tools, the system still powers down just fine.
> laptop-mode is deactivated as part of the shutdown sequence, though.

Laptop-mode was enabled on my system in the same way, namely by installing
laptop-mode-tools. It should be disabled during the shutdown by the init
script.

I will post a follow-up if I can narrow down the cause further.