Bug#808339: kwin-x11: 100% CPU hog by unused session (in multisession setup)

[Gilles <gilles@harfang.homelinux.org>]

Hi.

On Thu, 23 Mar 2017 17:12:48 +0100, Maximiliano Curia wrote:
> ¡Hola Gilles!
>
> El 2015-12-18 a las 19:54 +0100, Gilles Sadowski escribió:
> > Package: kwin-x11 Version: 4:5.4.3-1.1 Severity: important
>
> > Dear Maintainer,
>
> >   * What led up to the situation?
>
> > KDE (kdm) si configured to enable 3 sessions at startup. Switching 
> > to another session makes the kwin_x11 of the now unused session use 
> > 100% CPU.
>
> > This consistently happens by switching from one session to another. 
> > The problem already existed in KDE4.
>
> > The graphics card is an Nvidia. Similar problems are reported as 
> > fixed, but it appears that it is not the case.  At least not without 
> > some additional configuration.
>
> Sorry for taking so long in getting back to you.
>
> What you describe is very a specific setup. Are you still using it?
> Are you still able to reproduce this issue with a newer version of
> plasma 5?

At this time, no.
When I saw no solution, I ended up installing another desktop manager
(Cinnamon).

Best regards,
Gilles

> Happy hacking,