Bug 372604

Summary: Black rectangle in top right corner when switching virtual desktops
Product: [Plasma] plasmashell Reporter: krewetki <krewetki>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: normal CC: bhush94, carlon.luca, dm.vl.ivanov, notmart, plasma-bugs, viniciusalmada10
Priority: NOR    
Version: master   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: Black rectangle like this

Description krewetki 2016-11-17 22:36:36 UTC 
OS: Manjaro 16.10.1, KDE 5.8.3, kde frameworks 5.27.0, qt 5.7.0, kernel 4.4.31-2-manjaro, 64 bit, 8gb ram

steps to repeat:

1. open System Settings -> virtual desktops -> switching
then
Animation: Desktop Cube Animation
2. Click on Tools icon, and tick the "Don't animate panels".
3. Switch to a different workspace (either key combination or mouse click on workspaces switcher)
4. Observe a black non-transparent rectangle in top right corner, that covers almost 25% of the screen.
Comment 1 Marco Martin 2016-11-21 16:16:54 UTC 
suggests that's actually an invisible panel window?
Comment 2 VINICIUS ALMADA 2017-03-24 13:57:01 UTC 
Created attachment 104720 [details]
Black rectangle like this
Comment 3 Luca Carlon 2017-09-04 09:02:34 UTC 
Happening to me as well on Kubuntu 17.04. Disabling "do not animate panels" seems to fix it. Square is not black for me but it is in the same position.
Comment 4 David Edmundson 2017-09-04 09:10:21 UTC 

*** This bug has been marked as a duplicate of bug 374854 ***