shutdown restarts laptop (and disables kb)

[Firesam]

On Fri, 2011-07-22 at 10:37 +0530, d~_*b wrote:
> On 21 July 2011 18:27, Firesam <ubuntu at e17th.com> wrote:
> >
> > shutdown -P also does not power off. The computer still restarts. I am
> > using gnome desktop and uname -a outputs
> >        Linux xxx 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17
> >        UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
> >
> > I am not sure anymore about the mouse and keyboard bec they did not get
> > disabled. I tried using the shutdown menu in gnome also and this time it
> > did not cause the mouse and kb to not work. I don't know the exact
> > circumstances but sometime my internal kb and mouse stop working. How
> > can I track down the cause of this? Can it be related to the power off
> > problem?
> >
> >
> 
> Do you have multiple kernels installed, try to boot into one different
> from the  current one and check if the problem re-occurs.
> If you do not could you try installing a lower version of the kernel and check?
> 
> Just wondering if you made any recent upgrades to the system, thats all
> 
> --
> & Ru Chelladurai

I did not upgrade before this happened. I did however change to a new
laptop and that is partially the problem. I tried upgrading afterwards
and it did not help. I even tried it on an identical laptop as external
usb and as internal. both configurations (internal/external) on this
specific laptop have problems with the mouse. I did try also a fresh
install and same thing.

I *was* using Toshiba C655D-S5120
and it worked fine.

Now I am using Toshiba L775D-S7222 and it has this issue.

I would like to trace the source of the problem if anyone has ideas. I
would'nt know where to start.