Mint 20.2 no sound (faq)

[pittendrigh]

Been running Mint for 7 or 8 years. Last installation was 19.something, Cinnamon. No problems.

Installed 20.2 today. Not sure why. Now no sound. I've read several threads on this forum and others.
pulseaudio volume control seems to think sound is happening but it isn't.
I recursively deleted ~/.config/pulse/*
pulseaudio -k
pacmd list-sinks | grep mute
muted: no

hmm.

pacmd list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_0a_00.3.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9039
volume: front-left: 99957 / 153% / 11.00 dB, front-right: 99957 / 153% / 11.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 371.52 ms
card: 1 <alsa_card.pci-0000_0a_00.3>
module: 8
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC1220 Analog"
alsa.id = "ALC1220 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "HD-Audio Generic"
alsa.long_card_name = "HD-Audio Generic at 0xfe800000 irq 81"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:0a:00.3"
sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:0a:00.3/sound/card1"
device.bus = "pci"
device.vendor.id = "1022"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
device.product.id = "1457"
device.product.name = "Family 17h (Models 00h-0fh) HD Audio Controller"
device.string = "front:1"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Family 17h (Models 00h-0fh) HD Audio Controller Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
properties:

analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-lineout>

Not sure what to make of the above.