Pulseaudio all audio outputs gone

[mr_raider]

It seems all my outputs have disappeared from the volume control applet this morning.

I tried restarting pulseaudio

pulseaudio -k

But get a no output device message.

My sound card is detected right:

 [FONT=monospace][COLOR=#5454FF][B]System:    Kernel:[/B][/COLOR] 5.9.3-050903-generic x86_64 [COLOR=#5454FF][B]bits:[/B][/COLOR] 64 [COLOR=#5454FF][B]compiler:[/B][/COLOR] N/A [COLOR=#5454FF][B]Desktop:[/B][/COLOR] KDE Plasma 5.20.2 [COLOR=#5454FF][B]tk:[/B][/COLOR] Qt 5.15.0  
          [COLOR=#5454FF][B]wm:[/B][/COLOR] kwin_x11 [COLOR=#5454FF][B]dm:[/B][/COLOR] SDDM [COLOR=#5454FF][B]Distro:[/B][/COLOR] KDE neon 20.04 5.20 [COLOR=#5454FF][B]base:[/B][/COLOR] Ubuntu 20.04 LTS Focal  
[COLOR=#5454FF][B]Machine:   Type:[/B][/COLOR] Laptop [COLOR=#5454FF][B]System:[/B][/COLOR] Acer [COLOR=#5454FF][B]product:[/B][/COLOR] Swift SF314-42 [COLOR=#5454FF][B]v:[/B][/COLOR] V1.07 [COLOR=#5454FF][B]serial:[/B][/COLOR] <filter>  
          [COLOR=#5454FF][B]Mobo:[/B][/COLOR] RO [COLOR=#5454FF][B]model:[/B][/COLOR] Kona_RN [COLOR=#5454FF][B]v:[/B][/COLOR] V1.07 [COLOR=#5454FF][B]serial:[/B][/COLOR] <filter> [COLOR=#5454FF][B]UEFI:[/B][/COLOR] Insyde [COLOR=#5454FF][B]v:[/B][/COLOR] 1.07 [COLOR=#5454FF][B]date:[/B][/COLOR] 08/26/2020  
[COLOR=#5454FF][B]Battery:   ID-1:[/B][/COLOR] BAT1 [COLOR=#5454FF][B]charge:[/B][/COLOR] 20.3 Wh [COLOR=#5454FF][B]condition:[/B][/COLOR] 52.9/53.0 Wh (100%) [COLOR=#5454FF][B]volts:[/B][/COLOR] 15.1/15.4 [COLOR=#5454FF][B]model:[/B][/COLOR] PANASONIC AP19B5L  
          [COLOR=#5454FF][B]type:[/B][/COLOR] Li-ion [COLOR=#5454FF][B]serial:[/B][/COLOR] <filter> [COLOR=#5454FF][B]status:[/B][/COLOR] Discharging [COLOR=#5454FF][B]cycles:[/B][/COLOR] 7  
[COLOR=#5454FF][B]CPU:       Topology:[/B][/COLOR] 8-Core [COLOR=#5454FF][B]model:[/B][/COLOR] AMD Ryzen 7 4700U with Radeon Graphics [COLOR=#5454FF][B]bits:[/B][/COLOR] 64 [COLOR=#5454FF][B]type:[/B][/COLOR] MCP [COLOR=#5454FF][B]arch:[/B][/COLOR] Zen [COLOR=#5454FF][B]rev:[/B][/COLOR] 1  
          [COLOR=#5454FF][B]L2 cache:[/B][/COLOR] 4096 KiB  
          [COLOR=#5454FF][B]flags:[/B][/COLOR] avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm [COLOR=#5454FF][B]bogomips:[/B][/COLOR] 31939  
          [COLOR=#5454FF][B]Speed:[/B][/COLOR] 1397 MHz [COLOR=#5454FF][B]min/max:[/B][/COLOR] 1400/2000 MHz [COLOR=#5454FF][B]boost:[/B][/COLOR] enabled [COLOR=#5454FF][B]Core speeds (MHz):[/B][/COLOR] [COLOR=#5454FF][B]1:[/B][/COLOR] 1397 [COLOR=#5454FF][B]2:[/B][/COLOR] 1397 [COLOR=#5454FF][B]3:[/B][/COLOR] 1401 [COLOR=#5454FF][B]4:[/B][/COLOR] 1394  
          [COLOR=#5454FF][B]5:[/B][/COLOR] 1397 [COLOR=#5454FF][B]6:[/B][/COLOR] 1397 [COLOR=#5454FF][B]7:[/B][/COLOR] 1397 [COLOR=#5454FF][B]8:[/B][/COLOR] 1397  
[COLOR=#5454FF][B]Graphics:  Device-1:[/B][/COLOR] Advanced Micro Devices [AMD/ATI] Renoir [COLOR=#5454FF][B]vendor:[/B][/COLOR] Acer Incorporated ALI [COLOR=#5454FF][B]driver:[/B][/COLOR] amdgpu [COLOR=#5454FF][B]v:[/B][/COLOR] kernel  
          [COLOR=#5454FF][B]bus ID:[/B][/COLOR] 03:00.0 [COLOR=#5454FF][B]chip ID:[/B][/COLOR] 1002:1636  
          [COLOR=#5454FF][B]Display:[/B][/COLOR] x11 [COLOR=#5454FF][B]server:[/B][/COLOR] X.Org 1.20.8 [COLOR=#5454FF][B]driver:[/B][/COLOR] amdgpu [COLOR=#5454FF][B]FAILED:[/B][/COLOR] ati [COLOR=#5454FF][B]unloaded:[/B][/COLOR] fbdev,modesetting,vesa  
          [COLOR=#5454FF][B]compositor:[/B][/COLOR] kwin_x11 [COLOR=#5454FF][B]resolution:[/B][/COLOR] 1920x1080~60Hz  
          [COLOR=#5454FF][B]OpenGL:[/B][/COLOR] [COLOR=#5454FF][B]renderer:[/B][/COLOR] AMD RENOIR (DRM 3.39.0 5.9.3-050903-generic LLVM 11.0.0)  
          [COLOR=#5454FF][B]v:[/B][/COLOR] 4.6 Mesa 20.2.1 - kisak-mesa PPA [COLOR=#5454FF][B]direct render:[/B][/COLOR] Yes  
[COLOR=#5454FF][B]Audio:     Device-1:[/B][/COLOR] Advanced Micro Devices [AMD/ATI] [COLOR=#5454FF][B]vendor:[/B][/COLOR] Acer Incorporated ALI [COLOR=#5454FF][B]driver:[/B][/COLOR] snd_hda_intel [COLOR=#5454FF][B]v:[/B][/COLOR] kernel  
          [COLOR=#5454FF][B]bus ID:[/B][/COLOR] 03:00.1 [COLOR=#5454FF][B]chip ID:[/B][/COLOR] 1002:1637  
          [COLOR=#5454FF][B]Device-2:[/B][/COLOR] Advanced Micro Devices [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor  
          [COLOR=#5454FF][B]vendor:[/B][/COLOR] Acer Incorporated ALI [COLOR=#5454FF][B]driver:[/B][/COLOR] snd_rn_pci_acp3x [COLOR=#5454FF][B]v:[/B][/COLOR] kernel [COLOR=#5454FF][B]bus ID:[/B][/COLOR] 03:00.5 [COLOR=#5454FF][B]chip ID:[/B][/COLOR] 1022:15e2  
          [COLOR=#5454FF][B]Device-3:[/B][/COLOR] Advanced Micro Devices [AMD] Family 17h HD Audio [COLOR=#5454FF][B]vendor:[/B][/COLOR] Acer Incorporated ALI  
          [COLOR=#5454FF][B]driver:[/B][/COLOR] snd_hda_intel [COLOR=#5454FF][B]v:[/B][/COLOR] kernel [COLOR=#5454FF][B]bus ID:[/B][/COLOR] 03:00.6 [COLOR=#5454FF][B]chip ID:[/B][/COLOR] 1022:15e3  
          [COLOR=#5454FF][B]Sound Server:[/B][/COLOR] ALSA [COLOR=#5454FF][B]v:[/B][/COLOR] k5.9.3-050903-generic  
[COLOR=#5454FF][B]Network:   Device-1:[/B][/COLOR] Intel Wi-Fi 6 AX200 [COLOR=#5454FF][B]driver:[/B][/COLOR] iwlwifi [COLOR=#5454FF][B]v:[/B][/COLOR] kernel [COLOR=#5454FF][B]bus ID:[/B][/COLOR] 01:00.0 [COLOR=#5454FF][B]chip ID:[/B][/COLOR] 8086:2723  
          [COLOR=#5454FF][B]IF:[/B][/COLOR] wlp1s0 [COLOR=#5454FF][B]state:[/B][/COLOR] up [COLOR=#5454FF][B]mac:[/B][/COLOR] <filter>  
[COLOR=#5454FF][B]Drives:    Local Storage:[/B][/COLOR] [COLOR=#5454FF][B]total:[/B][/COLOR] 476.94 GiB [COLOR=#5454FF][B]used:[/B][/COLOR] 146.70 GiB (30.8%)  
          [COLOR=#5454FF][B]ID-1:[/B][/COLOR] /dev/nvme0n1 [COLOR=#5454FF][B]vendor:[/B][/COLOR] A-Data [COLOR=#5454FF][B]model:[/B][/COLOR] SX8200PNP [COLOR=#5454FF][B]size:[/B][/COLOR] 476.94 GiB [COLOR=#5454FF][B]speed:[/B][/COLOR] 31.6 Gb/s [COLOR=#5454FF][B]lanes:[/B][/COLOR] 4  
          [COLOR=#5454FF][B]serial:[/B][/COLOR] <filter> [COLOR=#5454FF][B]rev:[/B][/COLOR] S0118C [COLOR=#5454FF][B]temp:[/B][/COLOR] 31 C [COLOR=#5454FF][B]scheme:[/B][/COLOR] GPT  
[COLOR=#5454FF][B]Partition: ID-1:[/B][/COLOR] / [COLOR=#5454FF][B]size:[/B][/COLOR] 248.35 GiB [COLOR=#5454FF][B]used:[/B][/COLOR] 60.21 GiB (24.2%) [COLOR=#5454FF][B]fs:[/B][/COLOR] btrfs [COLOR=#5454FF][B]dev:[/B][/COLOR] /dev/nvme0n1p1  
          [COLOR=#5454FF][B]ID-2:[/B][/COLOR] /home [COLOR=#5454FF][B]size:[/B][/COLOR] 248.35 GiB [COLOR=#5454FF][B]used:[/B][/COLOR] 60.21 GiB (24.2%) [COLOR=#5454FF][B]fs:[/B][/COLOR] btrfs [COLOR=#5454FF][B]dev:[/B][/COLOR] /dev/nvme0n1p1  
          [COLOR=#5454FF][B]ID-3:[/B][/COLOR] swap-1 [COLOR=#5454FF][B]size:[/B][/COLOR] 2.00 GiB [COLOR=#5454FF][B]used:[/B][/COLOR] 0 KiB (0.0%) [COLOR=#5454FF][B]fs:[/B][/COLOR] swap [COLOR=#5454FF][B]dev:[/B][/COLOR] /dev/nvme0n1p3  
[COLOR=#5454FF][B]Sensors:   System Temperatures:[/B][/COLOR] [COLOR=#5454FF][B]cpu:[/B][/COLOR] 38.6 C [COLOR=#5454FF][B]mobo:[/B][/COLOR] N/A [COLOR=#5454FF][B]gpu:[/B][/COLOR] amdgpu [COLOR=#5454FF][B]temp:[/B][/COLOR] 38 C  
          [COLOR=#5454FF][B]Fan Speeds (RPM):[/B][/COLOR] N/A  
[COLOR=#5454FF][B]Info:      Processes:[/B][/COLOR] 310 [COLOR=#5454FF][B]Uptime:[/B][/COLOR] 10m [COLOR=#5454FF][B]Memory:[/B][/COLOR] 7.21 GiB [COLOR=#5454FF][B]used:[/B][/COLOR] 1.82 GiB (25.3%) [COLOR=#5454FF][B]Init:[/B][/COLOR] systemd [COLOR=#5454FF][B]v:[/B][/COLOR] 245 [COLOR=#5454FF][B]runlevel:[/B][/COLOR] 5  
          [COLOR=#5454FF][B]Compilers:[/B][/COLOR] [COLOR=#5454FF][B]gcc:[/B][/COLOR] 9.3.0 [COLOR=#5454FF][B]alt:[/B][/COLOR] 9 [COLOR=#5454FF][B]Shell:[/B][/COLOR] bash [COLOR=#5454FF][B]v:[/B][/COLOR] 5.0.17 [COLOR=#5454FF][B]running in:[/B][/COLOR] konsole [COLOR=#5454FF][B]inxi:[/B][/COLOR] 3.0.38 

[/FONT]

[claydoh]

Try deleting the ~/.config/pulse directory as well, and rebooting.

some chips using the snd_hda_intel driver may need tweaks on 5.3 and 5.4 kernels.

Some links

I had to use tweaks from the first link on my laptop, but oddly doing as fresh neon install on it yesterday, I did not have to. I wonder if it was from previous kernels and configs, as I don't have any of those now.

[mr_raider]

Erased the pulse directory. Didn't work.

tried booting from 20.10 Live ISO, same problem.

Started thinking it was a hardware failure, but then tried a Manjaro KDE Live USB, and sure enough audio was detected fine.

my guess is some update was pushed in the Ubuntu Wide ecosystem that borked pulseaudio.

note that I need to run kernel 5.7 or newer on thsi laptop due to teh graphics. Until last night it was fine.

[mr_raider]

Once again btrfs saves my ass.

I restored to a point in late October when Neon was at 20.1 and everything works fine.

This is clearly a regression introduced recently. I'm going install updates one step at a time to see what happens.

[Fred47]

There was some system audio files updated this morning 11/4/20
I'm running 20.04 LTS and I had no issues with them

[mr_raider]

There was some system audio files updated this morning 11/4/20

You are probably right.
I ran teh upgrades step by step. All KDE Neon updates went fine.

I then did the ubuntu core system updates. Stuff related to samba, grub and systemd went fine. I held off all the pulseaudio/alsa stuff and so far so good.

Anyone with a newer AMD laptop would be well served to hold off on upgrades.

[mr_raider]

Found the culprit. It's one of these:

[mr_raider]

BTW God Bless BTRFS. BTRFS and timeshift have made fixing this trivial.

You guys should pick BTRFS as your next president and rollback to January.

[Snowhog]

You guys should pick BTRFS as your next president and rollback to January.