Bug 428487 - OpenGL 2/3.1 graphical glitches whenever used with an nVidia card
Summary: OpenGL 2/3.1 graphical glitches whenever used with an nVidia card
Status: RESOLVED UNMAINTAINED
Alias: None
Product: kwin
Classification: Plasma
Component: glx (other bugs)
Version First Reported In: 5.19.5
Platform: Kubuntu Linux
: NOR major
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-10-30 23:25 UTC by Avery KDEBug
Modified: 2023-09-06 10:38 UTC (History)
1 user (show)

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Description Avery KDEBug 2020-10-30 23:25:35 UTC 
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
Comment 1 David Edmundson 2023-09-06 10:38:55 UTC 
This bug was reported against an outdated version of KWin. We have made many changes since the. 
If the issue persists in newer versions can you reopen the bug report updating the version number.