*** This bug is a duplicate of bug 1864061 ***
https://bugs.launchpad.net/bugs/1864061
Thank you Hui Wang for your help.
>Please add "options snd-hda-intel dmic_detect=0" in the
/etc/modprobe.d/alsa-base.conf, then the legacy hda driver will work as
before.
I can confirm, this solved both
Public bug reported:
On 22 March, 2020 I ran the latest update as requested by the computer. After
rebooting, as requested, I no longer have sound & the only sound output is
"Dummy Output".
No sound card is detected but i have a Multimedia Audio Controller Intel Corp
Device 9dc8(rev30) install