After a new installation of Ubuntu 18.04.3, there was no sound output. A couple of devices were identified, and a dummy showed up, selecting none of those worked. Speaker test nil.
At first I thought it was a codec problem, so I installed VLC but still no luck.
I tried some stuff with alsa (read in a forum), which seems to have made it worse as now no devices are showing at all. All sound settings greyed out, and sometimes pop up again - unstable. Test gives no result either in settings or terminal.
[pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="platform-bytcr_rt5651" card_name="alsa_card.platform-bytcr_rt5651" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1""): initialization failed.
[pulseaudio] module-alsa-card.c: Failed to find a working profile.
Audio Port: ASoC: no backend DAIs enabled for Audio Port
Can someone please help?
Would rebuilding ALSA be a good first step? As is here: Sound Settings is missing all output devices > This did not work for me.
I'm a complete newbie so don't want to give any more false steps here.