@Norbert, According to the painfo_linux47.txt in the #14, the active profile is still off with 47 kernel:
Default Sink: auto_null Sink #0 State: SUSPENDED Name: auto_null Description: Dummy-Ausgabe Driver: module-null-sink.c Sample Specification: s16le 2ch 44100Hz Channel Map: front-left,front-right Owner Module: 10 Mute: no Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB balance 0.00 Base Volume: 65536 / 100% / 0.00 dB Monitor Source: auto_null.monitor Latency: 0 usec, configured 0 usec Flags: DECIBEL_VOLUME LATENCY SET_FORMATS Properties: device.description = "Dummy-Ausgabe" device.class = "abstract" device.icon_name = "audio-card" Formats: pcm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1867704 Title: alsa/hdmi: support nvidia mst hdmi/dp audio To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1867704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs