Shutdown Problem

[Paul Stear]

On Sunday 29 Jan 2012 16:43:00 Mark Greenwood wrote:
> On 29 Jan 2012, at 16:32, Paul Stear wrote:
> > On Sunday 29 Jan 2012 16:24:53 Mark Greenwood wrote:
> >> On 29 Jan 2012, at 16:21, Paul Stear wrote:
> >>> Hi all,
> >>> Since updating to kde 4.7.4 the shut-down procedure appears to
> >>> complete
> >>> but doesn’t actually turn off the machine, I am left with the
> >>> shut-down
> >>> progress dots and have to press the main computer off button to turn
> >>> off the machine.
> >>> 
> >>> Any ideas how to fix this?
> >> 
> >> How patient have you been? Mine sometimes takes several minutes now
> >> but it does shut down in the end. It's annoying but I haven't spent
> >> much time looking into it yet.

> > I have left it for 30 mins and still it will not shut down.

> You've obviously got some process that doesn't want to quit. Try making sure
> you quit all desktop applications before shutting down. If that doesn't
> help then perhaps disabling some KDE services will. Also I've sometimes
> seen it do this when you have external discs or network volumes mounted.
> 
I have tried the above but it made no difference.
I can't find any error in logs or indeed what controls kubuntu to shutdown.

Can anyone point me in the right direction as to what the kubuntu procedure is 
for shutting down.
thanks
Paul