Created attachment 334431 [details] kcrash output Description of problem: system settings crash Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: Playing with wall papers, screen savers and its diff options, on clicking ok it crashed
System Settings is part of kdebase-workspace, not kde-settings. The kde-settings package contains default settings, not the tools to change them. You also left important portions blank, e.g. the detailed steps to reproduce the bug. Unfortunately, your "Additional info" is too vague to do anything with it.
The backtrace tells us it crashes somewhere in kcm_screensaver (no idea where because there's no debugging information, it just says "??") when processing a K3Process::processExited() signal (that may give us some idea about where it is, but nothing precise).
I suspected that the info I was providing was not enough, but I thought maybe whatever is there may prove useful. Sorry for the trouble. Closing it.