https://bugs.kde.org/show_bug.cgi?id=444261
Bug ID: 444261
Summary: Wayland is unusable
Product: kwin
Version: 5.23.1
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: dima...@gmail.com
Target Milestone: ---
Created attachment 142784
--> https://bugs.kde.org/attachment.cgi?id=142784&action=edit
upside down
SUMMARY
(you can see most of the issues described below on the screenshots)
* There are various artefacts:
* text shown upside down with 4x scale (see upside_down_wayland.png)
* some windows become filled with black colour permanently (see
upside_down_wayland.png)
* some windows become filled with black colour temporarily (for ~0.1s)
while resizing.
* duplicate content of a window flashing in a random place (for ~0.1s)
* It is very slow:
* When I move a window I can see how it is shown in one place, then in
~0.3s it is shown where the cursor is. It is like fps = 3 (instead of usual
60-100).
* Open and play any 4k 60fps Youtube video in Chrome in full screen, then
open "Stats for nerds" (right click on video and click "Stats for nerds") and
you will see that approximately HALF of all frames is dropped.
* Text is extremely blurry when display is scaled (it looks and feels as if
scale was implemented as jpg scale, instead of rendering image with different
settings/dpi/whatever).
* Also, some characters in text missing parts ("i" does not have the dot).
* The panel at the bottom disappears (see upside_down_wayland.png)
A couple more words about upside_down_wayland.png - one of the windows is
Firefox, the other is System settings (but for some reason it displays parts of
Konsole...)
STEPS TO REPRODUCE
1. Just try using it for about 5-10 min.
OBSERVED RESULT
See the attachments.
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 21.10
KDE Plasma Version: 5.23.1
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.13.0-20-generic (64-bit)
Graphics Platform: X11 # <---- I am reporting this bug in X session.
Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor
Memory: 125.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060 Ti/PCIe/SSE2
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