As a quick update, I managed to kill all of the spurious pulseaudio processes that had been lying around as a result of `pulseaudio -k && pulseaudio --start` and got the systemd pulseaudio process back on its feet. Then I confirmed that the audio worked, suspended my system, and woke it up again and the audio still works!
Therefore I suspect that pulseaudio processes started by the user in terminal sessions (daemonized) do not survive the suspend/resume cycle for some reason(?). How the systemd pulseaudio process failed to begin with remains the larger issue, however. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1928996 Title: [X58A-UD3R, Nvidia GPU 84 HDMI/DP, Digital Out, HDMI] No sound at all after resuming from suspend Status in alsa-driver package in Ubuntu: New Bug description: Sound works fine after an initial boot up, but fails after resuming from a suspend. Going to the "Sound" section in the Settings app, I no longer see the HDMI device presented as an output option when this occurs. I suspect this is due to issues with pulseaudio. At least, running `pulseaudio -k && pulseaudio --start`, then restarting apps seems to fix the issue. In particular I've found that the pulseaudio systemd service has failed after resuming from suspend. After scanning through journalctl, there are a few suspect sections. I've attached the logs in their entirety, and an abbreviated log with only sections that I found interesting. I cannot be sure which are at fault, but hopefully it helps narrow the search. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.4.0-73.82-generic 5.4.106 Uname: Linux 5.4.0-73-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.17 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: skainswo 2282708 F.... pulseaudio /dev/snd/controlC0: skainswo 2282708 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 19 16:08:41 2021 InstallationDate: Installed on 2020-05-15 (369 days ago) InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/home/username/.nix-profile/bin/zsh SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed Symptom_Card: GP106 High Definition Audio Controller - HDA NVidia Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: skainswo 2282708 F.... pulseaudio /dev/snd/controlC0: skainswo 2282708 F.... pulseaudio Symptom_Jack: Digital Out, HDMI Symptom_Type: No sound at all Title: [X58A-UD3R, Nvidia GPU 84 HDMI/DP, Digital Out, HDMI] No sound at all UpgradeStatus: Upgraded to focal on 2020-08-08 (284 days ago) dmi.bios.date: 04/20/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: FA dmi.board.name: X58A-UD3R dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFA:bd04/20/2010:svnGigabyteTechnologyCo.,Ltd.:pnX58A-UD3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnX58A-UD3R:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: X58A-UD3R dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1928996/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
