Version: SVN (using Devel) OS: Linux with the magic lamp effect turned on minimising a window, paints the current window shadow (blue) after the window has been minimised Reproducible: Always Steps to Reproduce: 1. systemsettings->desktop effects->all effects-> enable magic lamp effect and disable minimise animation effect and click apply Actual Results: open say a firefox window now, minimise it either by clicking the minimise button or on its taskbar entry, you can see the current window border/shadow (blue shadow) of the window disappearing after the window has been minimised Expected Results: there should not be any paints of border/shadow after minimisation todays kde trunk, nvidia 256.44 binary blob, twinview enabled.
is this related to an active blur effect?
yes! disabling the blur effect fixes the issue, so I guess the bug needs to be fixed in the blur effect plugin
*** This bug has been marked as a duplicate of bug 245988 ***