https://bugs.kde.org/show_bug.cgi?id=403812
Bug ID: 403812
Summary: Rendering problems with desktop effects enabled
(OpenGL) and latest Plasma update
Product: plasmashell
Version: 5.14.90
Platform: Other
OS: Linux
Status: REPORTED
Severity: grave
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: valterm...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
I'm experiencing rendering issues with latest Plasma (last update was on 29th
Jan): with desktop effects enabled and OpenGL 2.0 or 3.1 set, the display
starts flickering and it is almost unusable.
With *desktop effects enabled and XRender set*, the rendering displays
_correctly_.
Before the update I was using OpenGL 2.0, so I suppose it is an update problem.
STEPS TO REPRODUCE
1. turn on computer effects enabled with OpenGL 2.0/3.1
2.
3.
OBSERVED RESULT
The monitor flickers continuosly
EXPECTED RESULT
the rendering should be Ok
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
Operating System: KDE neon Developer Edition
KDE Plasma Version: 5.14.90
KDE Frameworks Version: 5.54.0
Qt Version: 5.12.0
Kernel Version: 4.15.0-38-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-3770 CPU @ 3.40GHz
Memory: 31,4 GiB
Driver: Nouveau
Graphic Card: Nvidia GeForce GT640
ADDITIONAL INFORMATION
Tried with Kubuntu and Plasma version 5.14 and Nvidia driver and I have no
rendering problems, all works fine.
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