Ok, I updated to Kernel 5.3 now, but still have no sound.
Pulseaudio still only has the dummy device, aplay -L shows the device.
aplay -L will return:
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
jack
JACK Audio Connection Kit
pulse
PulseAudio Sound Server
sysdefault:CARD=Audio
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Default Audio Device
hdmi:CARD=Audio,DEV=0
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
HDMI Audio Output
hdmi:CARD=Audio,DEV=1
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
HDMI Audio Output
hdmi:CARD=Audio,DEV=2
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
HDMI Audio Output
dmix:CARD=Audio,DEV=0
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample mixing device
dmix:CARD=Audio,DEV=1
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample mixing device
dmix:CARD=Audio,DEV=2
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample mixing device
dsnoop:CARD=Audio,DEV=0
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample snooping device
dsnoop:CARD=Audio,DEV=1
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample snooping device
dsnoop:CARD=Audio,DEV=2
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct sample snooping device
hw:CARD=Audio,DEV=0
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct hardware device without any conversions
hw:CARD=Audio,DEV=1
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct hardware device without any conversions
hw:CARD=Audio,DEV=2
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Direct hardware device without any conversions
plughw:CARD=Audio,DEV=0
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Hardware device with all software conversions
plughw:CARD=Audio,DEV=1
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Hardware device with all software conversions
plughw:CARD=Audio,DEV=2
Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
Hardware device with all software conversions
usbstream:CARD=Audio
Intel HDMI/DP LPE Audio
USB Stream Output
sysdefault:CARD=bytchtcx2072x
bytcht-cx2072x,
Default Audio Device
dmix:CARD=bytchtcx2072x,DEV=0
bytcht-cx2072x,
Direct sample mixing device
dmix:CARD=bytchtcx2072x,DEV=1
bytcht-cx2072x,
Direct sample mixing device
dsnoop:CARD=bytchtcx2072x,DEV=0
bytcht-cx2072x,
Direct sample snooping device
dsnoop:CARD=bytchtcx2072x,DEV=1
bytcht-cx2072x,
Direct sample snooping device
hw:CARD=bytchtcx2072x,DEV=0
bytcht-cx2072x,
Direct hardware device without any conversions
hw:CARD=bytchtcx2072x,DEV=1
bytcht-cx2072x,
Direct hardware device without any conversions
plughw:CARD=bytchtcx2072x,DEV=0
bytcht-cx2072x,
Hardware device with all software conversions
plughw:CARD=bytchtcx2072x,DEV=1
bytcht-cx2072x,
Hardware device with all software conversions
usbstream:CARD=bytchtcx2072x
bytcht-cx2072x
USB Stream Output
aplay /usr/share/sounds/alsa/Front_Center.wav --device=hw:CARD=bytchtcx2072x
will return
Wiedergabe: WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16
bit Little Endian, Rate: 48000 Hz, mono
aplay: set_params:1345: Kanalanzahl nicht unterstützt (=amount of channels not
supported).