Bug#853171: I think that this is an upstream bug.

[Éter <aqaib8@openmailbox.org>]

Dear Maintainers, 

I think that this bug is an upstream bug. Plasma desktop should not give 
segmentation faults when upower is missing. Maxi already fixed the kscreen bug 
setting upower as recommendation, because the functionatily that upower gives 
to kscreen is remembering the last screens configurations after a reboot. That 
function fits into the recommendations, not dependency, so it is fixed now.  
But given a system that has the plasma desktop + kscreen, it should not give 
segmentation faults when the upower functionality is missing. Given that, I 
think that this is a upstream bug and that the ones that could fix this are 
the KDE developers. 

Regards,
Éter.