https://bugs.kde.org/show_bug.cgi?id=476385
Bug ID: 476385
Summary: Substantially reduced stream performance with XWayland
video bridge
Classification: Applications
Product: XWaylandVideoBridge
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: dirk.sesterh...@protonmail.com
CC: aleix...@kde.org, k...@davidedmundson.co.uk
Target Milestone: ---
Created attachment 162776
--> https://bugs.kde.org/attachment.cgi?id=162776&action=edit
Video demonstration of the issue compared to the expected performance
SUMMARY
***
Streaming via XWayland video bridge has both very low refresh rate (less than
once per second) and severe latency (~5 seconds delay until it reaches the
stream)
***
STEPS TO REPRODUCE
1. Launch XWayland video bridge
2. Attempt to stream (Discord Canary from Flathub-Beta in my case, same
symptoms with Discord from Flathub)
3. Select a desktop in the portal, and the video bridge in the application
OBSERVED RESULT
Extremely degraded stream performance/quality, as described above
EXPECTED RESULT
Comparable stream performance/quality to directly streaming an X11 client
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Kinoite 39 (XWayland video bridge now included by
default)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
Kernel: 6.5.6-300.fc39
GPU: 6900XT
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