Comment # 1 on bug 1190689 from Fabian Vogt

> ============== how i installed newest kde plasma=========
> ...
> sudo zypper -v dup --force-resolution --allow-vendor-change --from KDE-Frameworks && sudo zypper -v dup --force-resolution --allow-vendor-change --from KDE-Applications && sudo zypper -v dup --force-resolution --allow-vendor-change --from KDE-Qt5 && sudo zypper -v dup --force-resolution --allow-vendor-change --from KDE-Extra

Never use "--force-resolution", it'll lead to a broken system!
Instead, do "sudo zypper -v dup --allow-vendor-change --from KDE-Frameworks
--from KDE-Applications --from KDE-Qt5 --from KDE-Extra".

> may be kwin_x11 call drkonqui and crash?

Could be.

If it still crashes after running the correct zypper command, please provide
the journal in the relevant time frame.