[SOLVED] Sound disappears, and I don't know what happened

[JonyN5]

Couple days ago, sound just disappears. What happened I don't have clue. Try all from this SoundFixTips, sound not back.

Code: Select all

$ pacmd list-sinks
2 sink(s) available.
    index: 0
	name: <alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1>
	driver: <module-alsa-card.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY 
	state: IDLE
	suspend cause: (none)
	priority: 9030
	volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
	        balance 0,00
	base volume: 65536 / 100% / 0,00 dB
	volume steps: 65537
	muted: no
	current latency: 100,13 ms
	max request: 17 KiB
	max rewind: 17 KiB
	monitor source: 0
	sample spec: s16le 2-канальный 4410
	channel map: front-left,front-right
	             Стерео
	used by: 0
	linked by: 0
	fixed latency: 100,14 ms
	card: 0 <alsa_card.pci-0000_01_00.1>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "HDMI 1"
		alsa.id = "HDMI 1"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "7"
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xfcffc000 irq 19"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:01:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "10de"
		device.vendor.name = "NVIDIA Corporation"
		device.product.id = "0fb9"
		device.product.name = "GP107GL High Definition Audio Controller"
		device.string = "hdmi:1,1"
		device.buffering.buffer_size = "17664"
		device.buffering.fragment_size = "2944"
		device.access_mode = "mmap"
		device.profile.name = "hdmi-stereo-extra1"
		device.profile.description = "Digital Stereo (HDMI 2)"
		device.description = "GP107GL High Definition Audio Controller Digital Stereo (HDMI 2)"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "SMB2230N
    "
	active port: <hdmi-output-1>
  * index: 1
	name: <alsa_output.pci-0000_00_14.2.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
	state: IDLE
	suspend cause: (none)
	priority: 9039
	volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
	        balance 0,00
	base volume: 65536 / 100% / 0,00 dB
	volume steps: 65537
	muted: no
	current latency: 91,97 ms
	max request: 17 KiB
	max rewind: 17 KiB
	monitor source: 1
	sample spec: s16le 2-канальный 4800
	channel map: front-left,front-right
	             Стерео
	used by: 0
	linked by: 0
	fixed latency: 100,14 ms
	card: 1 <alsa_card.pci-0000_00_14.2>
	module: 8
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "VT2020 Analog"
		alsa.id = "VT2020 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA ATI SB"
		alsa.long_card_name = "HDA ATI SB at 0xfe024000 irq 16"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "4383"
		device.product.name = "SBx00 Azalia (Intel HDA)"
		device.form_factor = "internal"
		device.string = "front:0"
		device.buffering.buffer_size = "17664"
		device.buffering.fragment_size = "2944"
		device.access_mode = "mmap"
		device.profile.name = "analog-stereo"
		device.profile.description = "Аналоговый стерео"
		device.description = "Встроенное аудио Аналоговый стерео"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-output-lineout: Линейный выход (priority 9000, latency offset 0 usec, available: yes)
			properties:
				
		analog-output-headphones: Наушники (priority 9900, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"
	active port: <analog-output-headphones>

Code: Select all

$ inxi -Fxz
System:    Kernel: 5.4.0-74-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.6 
           Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal 
Machine:   Type: Desktop Mobo: Gigabyte model: GA-78LMT-S2PV v: x.x serial: <filter> BIOS: Award v: F1 
           date: 10/04/2013 
CPU:       Topology: 6-Core model: AMD FX-6350 bits: 64 type: MCP arch: Bulldozer L2 cache: 2048 KiB 
           flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 47010 
           Speed: 1405 MHz min/max: 1400/3900 MHz Core speeds (MHz): 1: 1404 2: 1405 3: 1405 4: 1405 5: 1405 6: 1396 
Graphics:  Device-1: NVIDIA GP107 [GeForce GTX 1050 Ti] vendor: Micro-Star MSI driver: nvidia v: 460.80 
           bus ID: 01:00.0 
           Display: x11 server: X.Org 1.20.9 driver: nvidia unloaded: fbdev,modesetting,nouveau,vesa 
           resolution: 1920x1080~60Hz 
           OpenGL: renderer: GeForce GTX 1050 Ti/PCIe/SSE2 v: 4.6.0 NVIDIA 460.80 direct render: Yes 
Audio:     Device-1: Advanced Micro Devices [AMD/ATI] SBx00 Azalia vendor: Gigabyte driver: snd_hda_intel v: kernel 
           bus ID: 00:14.2 
           Device-2: NVIDIA GP107GL High Definition Audio vendor: Micro-Star MSI driver: snd_hda_intel v: kernel 
           bus ID: 01:00.1 
           Sound Server: ALSA v: k5.4.0-74-generic 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte driver: r8169 v: kernel 
           port: de00 bus ID: 02:00.0 
           IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
           IF-ID-1: docker0 state: down mac: <filter> 
Drives:    Local Storage: total: 1.32 TiB used: 18.26 GiB (1.4%) 
           ID-1: /dev/sda vendor: Western Digital model: WD10EZEX-08WN4A0 size: 931.51 GiB temp: 40 C 
           ID-2: /dev/sdb vendor: Seagate model: ST3320418AS size: 298.09 GiB temp: 39 C 
           ID-3: /dev/sdc vendor: Transcend model: TS128GSSD230S size: 119.24 GiB temp: 48 C 
Partition: ID-1: / size: 19.52 GiB used: 15.43 GiB (79.0%) fs: ext4 dev: /dev/sdc5 
           ID-2: /home size: 12.05 GiB used: 2.83 GiB (23.5%) fs: ext4 dev: /dev/sdc7 
           ID-3: swap-1 size: 1.91 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sdc6 
Sensors:   System Temperatures: cpu: 30.1 C mobo: N/A gpu: nvidia temp: 43 C 
           Fan Speeds (RPM): N/A gpu: nvidia fan: 35% 
Info:      Processes: 258 Uptime: 32m Memory: 11.70 GiB used: 1.39 GiB (11.9%) Init: systemd runlevel: 5 Compilers: 
           gcc: 9.3.0 Shell: bash v: 5.0.17 inxi: 3.0.38 

[SMG]

Within the past few days, my LM20.1 install received updates for ALSA and pulseaudio. Maybe those updates caused a change on your system? Do you have any Timeshift snapshots of when the sound was working? If so, perhaps you want to revert to that snapshot and test updates to see if any of them made a difference on your computer.

The updates I received were:
pulseaudio 1.13.99.1-1ubuntu3.11 packages (six packages with this number)
alsa-ucm-conf 1.2.2-1ubuntu0.8 (just one package)

You can see what updates you installed in Update Manager. Select View > History of Updates.

[JonyN5]

Thanks for reply!
Unfortunately, I don't have a snapshot of the previous version.
Installed:
pulseaudio 1:13.99.1-1ubuntu3.10 (but installed only 3 packages: pulseaudio, pulseaudio-module-bluetooth, pulseaudio-utils)
alsa-ucm-conf 1.2.2-1ubuntu0.7

[SMG]

Thanks for reply!
Unfortunately, I don't have a snapshot of the previous version.
Installed:
pulseaudio 1:13.99.1-1ubuntu3.10 (but installed only 3 packages: pulseaudio, pulseaudio-module-bluetooth, pulseaudio-utils)
alsa-ucm-conf 1.2.2-1ubuntu0.7

Was this information the old version or the new version of the listing in Update Manager? Update Manager lists both.

The versions I listed were the new ones which just came through a couple of days ago. If you did not install the newer ones, then it is possible some other change happened on your system to affect the sound.

Sometimes kernel changes can affect sound. You can boot into grub and select an older kernel to test that theory for the change.

[stevengarland]

When I had a similar problem it happened after I allowed 3 ALSA updates to happen. The fix was to was to use my TimeShift backup to go back to a time before the Alsa updates, then blacklist ALSA when the Update Mgr ran. Yes, this took a little time. Situations like this is why backup is essential.

[JonyN5]

Didn't find what problem is. Had to reinstall system and setting backup with Timeshift.