I have phonon on both:
root@debian:~# dpkg -l | grep phonon
ii libphonon4:amd64 4:4.10.2-1 amd64 multimedia framework from KDE – core library
ii libphonon4qt5-4:amd64 4:4.10.2-1 amd64 multimedia framework from KDE using Qt 5 – core library
ii phonon:amd64 4:4.10.2-1 amd64 multimedia framework from KDE using Qt 4 – metapackage
ii phonon-backend-gstreamer:amd64 4:4.9.0-1 amd64 Phonon GStreamer 1.0 backend
ii phonon-backend-gstreamer-common:amd64 4:4.9.0-1 amd64 Phonon GStreamer 1.0.x backend icons
ii phonon4qt5:amd64 4:4.10.2-1 amd64 multimedia framework from KDE using Qt 5 – metapackage
ii phonon4qt5-backend-vlc:amd64 0.10.2-1 amd64 Phonon4Qt5 VLC backend
After installing the pavucontrol and setting the output to “Simultaneous output to NoMachine output” audio started working.
Thks for help.