[Bug 1822767] [NEW] Desktop is flickering/out of focus

[Jonty Gamao]

Public bug reported:

Bug report on KDE's bug tracker:
https://bugs.kde.org/show_bug.cgi?id=405920

The desktop is out of focus/flickering, like when a person is trying
very hard to focus.

Here's a video demo, which was from 18.10: https://youtu.be/Gn_dITHQFEs

In Cosmic, the problem occurs after waking up from sleep.  Now, it
occurs all the time.

Operating System: Kubuntu 19.04
KDE Plasma Version: 5.15.3
KDE Frameworks Version: 5.56.0
Qt Version: 5.11.3
Kernel Version: 5.0.0-8-generic
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-6500 CPU @ 3.20GHz
Memory: 15.6 GiB of RAM
GPU: GTX 1060

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: plasma-desktop 4:5.15.3.2-0ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Apr  2 06:45:14 2019
InstallationDate: Installed on 2019-04-02 (0 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.1)
SourcePackage: plasma-desktop
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: plasma-desktop (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug disco

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https://bugs.launchpad.net/bugs/1822767

Title:
  Desktop is flickering/out of focus

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