hp probook 4515s going rebooting when I click Shutdown

[NoOp]

On 03/05/2011 08:19 AM, Сергей Кондурян wrote:
> I have HP ProBook 4515s with SLED 11 preinstalled.
> I have installed Ubuntu Desktop 10.04.2 i386 and update system with
> Update Manager.
> Now when I'm press Shutdown in upper right corner computer is rebooting.
> In 10.10 and SLED/openSUSE it was OK. What is could be?
> Sorry for bad English
> 

Possible hardware issue? I was having the same issue on one of my
desktops and found out that one of my nic cards had gone bad. No matter
what I attempted (upgraded bios, ensured Wake On Lan was off, kernel
ACPI etc. modifications, it would still reboot. On occassion it would
even do it in WinXP (dual boot system) & then finally did it every time
even in WinXP. It would also do it from the Ubuntu liveCD. I finally
resolved my stripping the machine of every peripheral device with the
exception of the CD drive & putting each card (SCSI, Video, etc) back in
one at a time. It was only when I put the nic card back in the problem
appeared again. So, I replaced the nic card & all is well again.

I realise that it will be considerably harder to pin down a similar
hardware issue with a laptop so you might try checking your bios
settings & also check to see if it occurs with a liveCD. If the liveCD
is OK, then look for power setting issues (acpi etc).

And I see that you've entered a question(s):
https://answers.launchpad.net/ubuntu/+question/147946
https://answers.launchpad.net/ubuntu/+question/147940
on launchpad & received no responses.