On Friday 15 January 2016 23:00:13 Arthur Marsh wrote: > Is there any documentation on what configuration file(s) kwin_x11 uses? You can try starting kwin with strace, like this (when it's not running at the moment): strace -f -e open kwin_x11 2>&1 | grep config Kudos to your persistence in finding the root cause of the bug! Best wishes Carsten