Kubuntu Vivid slow to shut down

[Kaj Haulrich]

On 2015-04-25 21:12, Donatas G. wrote:
> Hello everyone,
>
> I have been running Kubuntu Vivid (on Thinkpad X220t, amd64, with SSD
> hard drive) for a few weeks now. Everything goes ok, but it is strange
> that it takes a few minutes for the system to shut down. It takes long
> both if I shut down the graphical way, and if I issue  "sudo halt -p"
> (independently of whether the Plasma session is running).
>
> I looked at what is happening during the shutdown procedure, and the
> shutdown procedure stops and hangs for more than a minute at these lines:
>
> Starting Wait for Plymouth Boot Screen to Quit...
> Starting Terminate Plymouth Boot Screen...
>
> How do I troubleshoot this problem? How do I see what is halting the
> shutdown process, what is hiding behind those lines?
>
> Would be grateful for any ideas.

Well, the problem seems to be plymouth. You could try to edit (as root): 
/etc/default/grub
and remove "quiet splash" (not the "") from the linux line. Save the 
file and run:
sudo update-grub
Now reboot. You will see the boot process in all its glory, without the 
plymouth candy.
If your shutdown process still behaves badlu, I'm out of ideas...

HTH
Kaj Haulrich.
-- 
Sent from a 100% Microsoft-free computer---
         Running Linux Kubuntu 15.04