https://bugs.kde.org/show_bug.cgi?id=428487
Bug ID: 428487
Summary: OpenGL 2/3.1 graphical glitches whenever used with an
nVIdia card
Product: kwin
Version: 5.19.5
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: glx
Assignee: kwin-bugs-n...@kde.org
Reporter: wownotd...@gmail.com
Target Milestone: ---
Graphical glitches include window title-bars not rendering properly with just a
non-descriptive flashing and/or transparent box and blackness enveloping
everything except the currently focused window.
This issue only appears on KDE with Kwin only since I've tested KDE on the span
of many versions (since Kubuntu 19.10) and with other GPUs - it persisted when
I switched from my 970 to a 1070 but it did not appear on my laptop with an
integrated AMD GPU.
STEPS TO REPRODUCE
1. Turn on OpenGL 2 or 3.1 in Kwin compositor (2.0 is on by default).
2. Wait for a few minutes and open windows frequently.
3. Graphical glitches should appear in the span of 3-5 newly opened windows.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 20.10 (Linux 5.8)
(available in About System)
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.14.2
HARDWARE
CPU: i5-4690k
GPU: GTX 1070
RAM: 16GBs
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