Sometimes when I am switching virtual desktops, regardless of the method used for switching, some orphan/ghost buttons or windows or panels pop up momentarily, and then go away when switching is completed. Some screenshots: http://www.mediafire.com/?s2xpmqyz8d23b. Once such ghost thingies start to appear, you have to restart kwin to make them go away. Reproducible: Sometimes Steps to Reproduce: Don't know. Actual Results: Orphan/ghost thingies. Expected Results: No orphan/ghost thingies.
Is this really 4.9.2? Because openSUSE does not yet ship 4.9 in the official repositories. In case it is 4.9 please provide the output of qdbus org.kde.kwin /KWin supportInformation when the problem is present.
Okay, thank you. I will.
Yes, it is 4.9.2. I have rolling release enabled on my system (via Tumbleweed).
Created attachment 74546 [details] Screenshot of a bug Affects me too. Kubuntu 12.10, kde 4.9.2.
Probably related: https://bugs.kde.org/show_bug.cgi?id=259640
please see comment #1 - that information is much more important than screenshots
I have the same issues with KDE 4.9 though I have Sabayon 10 as distribution (Gentoo derived). The orphaned closer buttons and even dialogue windows (Pidgin buddy list) seem to occur if certain screen-edge actions are enabled and used using the default settings. I have isolated this to "Present Windows on all desktops" where if in the control panel of Desktop Effects for "Present Windows" the option "Provide buttons to close windows" is enabled. Closing any window in this display leaves the closer button behind which can not then be removed except by logging out and back in. Switching "Provide buttons to close windows" off prevents the closer buttons being displayed and so being orphaned. A proper fix would be preferable.
We know what introduces those buttons, just now what keeps them around. Therefore please see comment #1 and if possible provide the output of qdbus org.kde.kwin /KWin supportInformation when the problem is present.
Created attachment 75764 [details] qdbus org.kde.kwin /KWin supportInformation run 2 times KDE output as requested (qdbus org.kde.kwin /KWin supportInformation). 1st run is with button display disabled. The second with button display enabled and 1 window selected leaving an orphan button. Orphan button appears on cube-rotate switching of desktop.
KDE trace from KDE 4.9.3 on Sabayon 10 with kernel 3.5
Can you try disabling the translucency effect?
Makes no difference. The Orphans still appear.
*** This bug has been marked as a duplicate of bug 259640 ***