org.kde.kmix: no mix devices and not dynamic

[gregrwm]

install focal kubuntu from iso
install kmix
update packages
launch kmix from xterm
output in xterm:
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic
org.kde.kmix: no mix devices and not dynamic

kmix does not exit, but no kmix window appears
meanwhile pavucontrol-qt has no trouble displaying numerous devices

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: kmix 4:19.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
Date: Sat May 9 19:05:38 2020
ProcEnviron:
 LC_TIME=en_DK.utf8
 TERM=screen
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: kmix
UpgradeStatus: No upgrade log present (probably fresh install)

[gregrwm (gregrwm)]

ok it appears in the system tray, not as a window