Bug#794102: [kde-full] Windows frames disappears!!!!

[Scott Kitterman <debian@kitterman.com>]

On July 30, 2015 10:21:52 AM EDT, Marco Righi <marco.righi@gmail.com> wrote:
>Package: kde-full
>Version: 5:84
>Severity: critical
>
>--- Please enter the report below this line. ---
>
>Hi,
>after the last upgrade session the applications in my KDE Plasma has
>lost the windows frames. Even if I use  alt-tab it is not possible to
>switch from an application to another one.
>
>The only way to get the access to KDE menu' is closing all the
>applications.
>
>I have try to delete
>
>rm $HOME/.kde* -Rf
>
>without resolving the problem.
>
>I have updated the system setting application (icon) because the
>previous was not executable.
>
>KDE openbox works fine with my previous settings.
>
>Please write me if you think I can provide you informations.
>
>Thanks for your work
>Marco Righi

Try updating kwin-x11 and related packages from unstable.  That should fix it.  If it does, please close this bug.

Scott K