Version: (using Devel) OS: Linux Installed from: Compiled sources If you create a small window (something about the size of a default kcalc), then move it, there is corruption on the window. About 8 pixels of the window is duplicated at the top and bottom. It looks like it is just not damaging an area big enough because as soon as that part of the screen is damaged, it repaints properly. Taking a screenshot is not working for this reason as well.
Ahuh, I thought it was just from the shadow effect. Thanks for working out that it's a conflict with wobbly windows. =D
I cannot reproduce it in my version I'm building from trunk and use the nvidia driver. I tryed to open kcacl and move it, nothing wrong happen. I also tryed with a konsole that I resized to the minimum size and nothing wrong here too. could you please send me your kwinrc si i'll try with your exact settings can you also tell me what hardware/driver/configuration you have ?
Created attachment 28745 [details] Screenshot of bug
Created attachment 28746 [details] kwinrc
I can reproduce it now, thanks I need to enable wobbly and shadow effet to see this problem.
SVN commit 896300 by lmurray: Correct use of OpenGL coords. Fixes shadow issue with small windows that have been subdivided in other effects such as wobbly windows. BUG: 175754 M +51 -51 shadow.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=896300
*** Bug 179928 has been marked as a duplicate of this bug. ***