Bug#793973: [kwin-wayland] kwin-wayland has no windows decorations. As workaround: purged kwin-wayland and install kwin-x11.

[Scott Kitterman <debian@kitterman.com>]

On Wednesday, July 29, 2015 09:40:36 AM adrian.steffen@quoininc.com wrote:
> Package: kwin-wayland
> Version: kwin-wayland:amd64 4:5.3.2-2
> Severity: normal
> 
> --- Please enter the report below this line. ---
> Upgraded from plasma-desktop4 to plasma-desktop-4:5.3.2-2.
> kwin-wayland-4:5.3.2-2 had no windows decorations. Could not move from one
> window to another, nor other window operations.
> 
> As a workaround purged kwin-wayland and installed kwin-x11-4:5.3.2-2

Did you have qtwayland5 installed?  If not, please retry with that installed 
and see if it works better.

Scott K