kwin effect greys quarter of screen

Bug #1637852 reported by ralphb
This bug affects 1 person
Affects Status Importance Assigned to Milestone
kwin (Ubuntu)

Bug Description

My desktop system is a Skylake i5-6600 with Asus Z170 mainboard and Intel onboard graphics, connected to a 4K monitor via DP 1.2.

I've selected "Desktop Cube Animation" as Virtual Desktop Switching Animation.

After upgrade to Yakkety, this desktop animation shows a large dark area in the top right corner, while the animation is in progress. The size is exactly (?) 1/4 of the screen, and the color of the area changes during animation. When the animation completes, everything is back to normal.

I cannot tell if this issue is related to Kwin, or the Intel graphics driver or some such thing.

On Xenial, this particular bug was not present, although I did have some glitches in Cover Switch (bottom of Windows showing at the top).

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: kwin 4:5.7.5-0ubuntu2
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Oct 30 17:22:00 2016
InstallationDate: Installed on 2016-08-24 (66 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: kwin
UpgradeStatus: Upgraded to yakkety on 2016-10-26 (3 days ago)

Revision history for this message
ralphb (dev-endlos) wrote :
Revision history for this message
ralphb (dev-endlos) wrote :

Fixed with Kubuntu 20.04 and OpenGL working.

Changed in kwin (Ubuntu):
status: New → Invalid
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