Bug 307473

Summary: Window kept on screen after closing
Product: [Plasma] kwin Reporter: Gamblit <kdebugzilla>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: major    
Priority: NOR    
Version First Reported In: 4.9.1   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Desktop is clearly behind the window
Right click on "dead" window
Screensaver window stuck

Description Gamblit 2012-09-27 01:17:12 UTC 
After updating to KDE 4.9.1 I've started getting "stuck" windows. Today I got to my computer, entered the password to unlock it and it unlocked fine but the window asking for the password was kept on screen. Background image showed fine, applications worked fine, except the unlock window was in front of them all.

Cursor was responding to window underneath, not to the stuck window. Tried "xkill" on the stuck window but the window underneath was killed. Only way I got it to disappear was restarting X with Ctrl-Alt-Bcksp

Later it happened again, this time with a window asking for the root password (i was changing some clock settings). "xkill" doesn't work on it and it's only displaying on it's original desktop (and not on all six virtual desktops). This window isn't always on top and as such doesn't really bother me so I haven't restarted X so as to able to extract information from the system.

Another curious thing is that this second window actually goes down the window stack like a normal window. It started on top, then when i changed to a second window it went behind that window, not to the bottom. It appears to work like a window that is "transparent" to input events.

Marked it with Major severity because if the window is an always-on-top it makes using the desktop very very hard.

Reproducible: Couldn't Reproduce

Steps to Reproduce:
No idea....
Comment 1 Gamblit 2012-09-27 01:19:19 UTC 
Created attachment 74185 [details]
Desktop is clearly behind the window

As shown by the desktop selection, the window is clearly above the desktop
Comment 2 Gamblit 2012-09-27 01:22:01 UTC 
Created attachment 74186 [details]
Right click on "dead" window

Right clicking on the "dead" window shows the right click action for the window beneath it (in this case, the desktop)
Comment 3 Gamblit 2012-09-27 13:33:19 UTC 
Created attachment 74191 [details]
Screensaver window stuck

Today I unlocked the computer, and the password unlock window got "stuck" again. It's always on top, and present in every single virtual desktop.
Comment 4 Gamblit 2012-09-27 13:48:58 UTC 
Disabling desktop effects with Ctrl-Shift-F12 (toggle desktop effects) made the windows go away.
Comment 5 Martin Flöser 2012-09-28 05:26:15 UTC 

*** This bug has been marked as a duplicate of bug 306186 ***