Comment # 2 on bug 1163046 from Felix Miata

This may have nothing to do with the Raven/Raven2/Fenghuang possibly being too
new. In the past several hours I've tried, using YaST2 and among other things
setup-pulseaudio --enable
and to test
aplay -vv /usr/share/sounds/alsa/test.wav
to get HDMI and/or DisplayPort audio out of 15.1 on several PCs, and/or from
15.2 and/or Debian 10. On one it was already and remains working (host gb250,
only as normal user, and only in Debian 10/TDE; Device 8086:a2f0; DP & HDMI).

All others tried in recent hours, all using Intel CPUs, fail:
1: host gb250 15.1/TDE as root or normal user; onboard Device 8086:a2f0; HDMI
2: host gx78b 15.1/KDE3 and 15.2/KDE3 using the HD from the comment 0 PC as
root or normal user; onboard Device 8086:3a6e; DP & DP-HDMI adapter; has
internal speaker that makes sound instead of DP
3: host ab250 15.1/TDE or IceWM as root or normal user; onboard Device
8086:a2f0; HDMI; analog pin jack also tried and fails
4: host vostro 15.1/Plasma 5 as root user (no normal users on the fresh
installation pending BTRFS /home recovery from old SSD); PCIe Device 10de:0be9;
DP; analog pin jack tried also fails
5: host gx760 15.1/TDE as root or normal user, also failing in 13.1/Plasma 4,
42.3/TDE and TW/Plasma 5; onboard Device 8086:3a6e; DP-HDMI adapter
6: host gx780 15.1/KDE3 as normal user; onboard Device 8086:3a6e; DP; has
internal speaker that makes sound instead of DP
7: host ta790 15.1/Plasma 5 as root & normal user; onboard devices 1002:4383 &
1002:960f; HDMI

In most of these, aplay -vv displays as if it was actually getting something to
the speakers, with ...###... scrolling across the bottom of the output, but
instead on gb250 "aplay: main:828: audio open error: No such file or directory"
results.