PCI/internal sound card not detected

[Jack Lund]

My sound card stopped being recognized suddenly today. lspci shows the card, but alsa and pulseaudio don't see it. I verified that the kernel modules are installed.

I noticed this today when I logged on and the only audio device was the dummy device. I tried the various fixes I found online for this, but nothing worked. I haven't made any changes to any audio packages manually, but I have had automatic updates over the last few days which may have caused this.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.3.0-59.53~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-59-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: ubuntu:GNOME
Date: Sat Jun 20 15:29:04 2020
InstallationDate: Installed on 2020-03-14 (98 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
PackageArchitecture: all
ProcEnviron:
 TERM=screen-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
SourcePackage: alsa-driver
Symptom: audio
Title: PCI/internal sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/26/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.1
dmi.board.name: 0377MH
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.5.1:bd03/26/2020:svnDellInc.:pnXPS137390:pvr:rvnDellInc.:rn0377MH:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 7390
dmi.product.sku: 0962
dmi.sys.vendor: Dell Inc.

[Jack Lund (jacklund)]

Here's what I've tried (that I can remember):

- Reinstalling all the ALSA packages
- Rebooting, turning off the sound devices in the BIOS, letting it boot, then reboot, turn the sound devices back on, and let it boot
- rm -rf ~/.config/pulseaudio && pulseaudio -k
- sudo alsa force-reload
- Remove and reinstall pulseaudio packages
- sudo apt purge alsa-base pulseaudio && sudo apt install ubuntu-gnome-desktop && sudo alsa force-reload

[Jack Lund (jacklund)]

Upgrading to Ubuntu 20.04 fixed the issue.

[Sebastien Bacher (seb128)]

Thanks, closing if it works in the current serie