https://bugs.kde.org/show_bug.cgi?id=450312
Bug ID: 450312
Summary: real time audio issues with KWayland
Product: frameworks-kwayland
Version: 5.91.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: mgraess...@kde.org
Reporter: navarro.benjami...@gmail.com
CC: kwin-bugs-n...@kde.org
Target Milestone: ---
SUMMARY
When doing some music production, I noticed that my system can't meet the real
time deadlines (lots of xruns) when I use KWayland. If I start my session with
X11 then everything works as expected.
STEPS TO REPRODUCE
1. On the login screen (here SSDM), select the Wayland session over the X11 one
2. Start jack2 using Cadence
3. Open a project in Ardour
4. See in Cadence how the xruns keep coming
OBSERVED RESULT
Lots of xruns, i.e unusable audio software
EXPECTED RESULT
Not more xruns than with an X11 sessions
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Archlinux, Linux 5.16.9
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
CPU: AMD Ryzen 9 5900HX
GPU: GeForce RTX 3080 Mobile (prime)
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