I had the same issue repeat after being away from the computer for a bit. It changed to Analog stereo again.
I did find the configuration tab when I searched a bit more with the GUI full window instead of opening size.
Regarding posting the results of pacmd list it is awful large:
pacmd list
Memory blocks currently allocated: 1, size: 63.9 KiB.
Memory blocks allocated during the whole lifetime: 19841, siz
e: 63.3 MiB.
Memory blocks imported from other processes: 0, size: 0 B.
Memory blocks exported to other processes: 0, size: 0 B.
Total sample cache size: 0 B.
Default sample spec: s16le 2ch 44100Hz
Default channel map: front-left,front-right
Default sink name: alsa_output.pci-0000_00_0e.0.hdmi-stereo
Default source name: alsa_input.pci-0000_00_0e.0.analog-stere
o
Memory blocks of type POOL: 1 allocated/9805 accumulated.
Memory blocks of type POOL_EXTERNAL: 0 allocated/4914 accumul
ated.
Memory blocks of type APPENDED: 0 allocated/0 accumulated.
Memory blocks of type USER: 0 allocated/0 accumulated.
Memory blocks of type FIXED: 0 allocated/10030 accumulated.
Memory blocks of type IMPORTED: 0 allocated/6 accumulated.
29 module(s) loaded.
index: 0
name: <module-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore t
he volume/mute state of devices"
module.version = "13.0-rebootstrapped"
index: 1
name: <module-stream-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore t
he volume/mute/device state of streams"
module.version = "13.0-rebootstrapped"
index: 2
name: <module-card-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore p
rofile of cards"
module.version = "13.0-rebootstrapped"
index: 3
name: <module-augment-properties>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Augment the property se
ts of streams with additional static information"
module.version = "13.0-rebootstrapped"
index: 4
name: <module-switch-on-port-available>
argument: <>
used: -1
load once: yes
properties:
module.author = "David Henningsson"
module.description = "Switches ports and prof
iles when devices are plugged/unplugged"
module.version = "13.0-rebootstrapped"
index: 5
name: <module-udev-detect>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Detect available audio
hardware and load matching drivers"
module.version = "13.0-rebootstrapped"
index: 6
name: <module-alsa-card>
argument: <device_id="0" name="pci-0000_00_0e.0" card
_name="alsa_card.pci-0000_00_0e.0" namereg_fail=false tsched=
yes fixed_latency_range=no ignore_dB=no deferred_volume=yes u
se_ucm=yes avoid_resampling=no card_properties="module-udev-d
etect.discovered=1">
used: 0
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "ALSA Card"
module.version = "13.0-rebootstrapped"
index: 7
name: <module-bluetooth-policy>
argument: <>
used: -1
load once: yes
properties:
module.author = "Frédéric Dalleau, Pali Rohár
"
module.description = "Policy module to make u
sing bluetooth devices out-of-the-box easier"
module.version = "13.0-rebootstrapped"
index: 8
name: <module-bluetooth-discover>
argument: <>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available Blueto
oth daemon and load the corresponding discovery module"
module.version = "13.0-rebootstrapped"
index: 9
name: <module-bluez5-discover>
argument: <>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available BlueZ
5 Bluetooth audio devices and load BlueZ 5 Bluetooth audio dr
ivers"
module.version = "13.0-rebootstrapped"
index: 10
name: <module-esound-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "ESOUND protocol (UNIX s
ockets)"
module.version = "13.0-rebootstrapped"
index: 11
name: <module-native-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (UNIX s
ockets)"
module.version = "13.0-rebootstrapped"
index: 12
name: <module-gconf>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "GConf Adapter"
module.version = "13.0-rebootstrapped"
index: 13
name: <module-device-manager>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Keep track of devices (
and their descriptions) both past and present and prioritise
by role"
module.version = "13.0-rebootstrapped"
index: 14
name: <module-default-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore t
he default sink and source"
module.version = "13.0-rebootstrapped"
index: 15
name: <module-rescue-streams>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is r
emoved, try to move its streams to the default sink/source"
module.version = "13.0-rebootstrapped"
index: 16
name: <module-always-sink>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Always keeps at least o
ne sink loaded even if it's a null one"
module.version = "13.0-rebootstrapped"
index: 17
name: <module-intended-roles>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically set devic
e of streams based on intended roles of devices"
module.version = "13.0-rebootstrapped"
index: 18
name: <module-suspend-on-idle>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is i
dle for too long, suspend it"
module.version = "13.0-rebootstrapped"
index: 19
name: <module-console-kit>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Create a client for eac
h ConsoleKit session of this user"
module.version = "13.0-rebootstrapped"
index: 20
name: <module-systemd-login>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Create a client for eac
h login session of this user"
module.version = "13.0-rebootstrapped"
index: 21
name: <module-position-event-sounds>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Position event sounds b
etween L and R depending on the position on screen of the wid
get triggering them."
module.version = "13.0-rebootstrapped"
index: 22
name: <module-role-cork>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Mute & cork streams wit
h certain roles while others exist"
module.version = "13.0-rebootstrapped"
index: 23
name: <module-filter-heuristics>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Detect when various fil
ters are desirable"
module.version = "13.0-rebootstrapped"
index: 24
name: <module-filter-apply>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Load filter sinks autom
atically when needed"
module.version = "13.0-rebootstrapped"
index: 25
name: <module-x11-publish>
argument: <display=:0>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "X11 credential publishe
r"
module.version = "13.0-rebootstrapped"
index: 26
name: <module-x11-cork-request>
argument: <display=:0>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Synthesize X11 media ke
y events when cork/uncork is requested"
module.version = "13.0-rebootstrapped"
index: 27
name: <module-x11-xsmp>
argument: <display=:0 session_manager=local/localhost
.localdomain:@/tmp/.ICE-unix/1832,unix/localhost.localdomain:
/tmp/.ICE-unix/1832>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "X11 session management"
module.version = "13.0-rebootstrapped"
index: 30
name: <module-cli-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Command line interface
protocol (UNIX sockets)"
module.version = "13.0-rebootstrapped"
1 sink(s) available.
* index: 4
name: <alsa_output.pci-0000_00_0e.0.hdmi-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENC
Y
state: SUSPENDED
suspend cause: IDLE
priority: 9030
volume: front-left: 61604 / 94% / -1.61 dB, front-
right: 61604 / 94% / -1.61 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: 5
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 1837.50
ms