Bug 396204

Summary: Graphical glitches that makes the calendar unusable when compositing is disabled
Product: [Plasma] plasmashell Reporter: Laurent Bonnaud <L.Bonnaud>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED FIXED    
Severity: normal CC: plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.12.6   
Target Milestone: 1.0   
Platform: Kubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: video capture

Description Laurent Bonnaud 2018-07-05 13:27:36 UTC 
Version info:
 - Ubuntu 18.04
 - Plasma 5.12.6
 - KF5 5.47
 - CPU/GPU: Core i7-2640M
 - Mesa 18.1.3 from x-swat PPA

Steps to reproduce:
 1. start Plasma with compositing disabled and focus follows mouse setting
 2. open a Konsole window in the lower right part of the desktop, just above the clock
 3. click on the clock and try to reach the calendar

What happens:
 - a thin stripe of white from Konsole remains around the calendar
 - trying to reach the calendar causes the mouse to cross this stripe, the focus to change to the Konsole, and the calendar closes
 - enabling compositing instantly fixes the problem (but causes other and worse graphical glitches)
 - closing the Konsole hides the focus problem, but the missing stripe still appears

This bug also happened with previous versions of Ubuntu, Plasma, KF5 and Mesa.
Comment 1 Laurent Bonnaud 2018-07-05 13:28:27 UTC 
Created attachment 113779 [details]
video capture

Here is a video capture that should help to see the problem.
Comment 2 Laurent Bonnaud 2019-05-14 10:04:28 UTC 
I am closing this bug that no longer occurs.