I did some more investigation and found that without the workaround the analog output only appears while headphones are plugged in. The SPDIF output disappears while headphones are plugged in.
The bug has been submitted with this new information at https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/852 ** Bug watch added: gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues #852 https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/852 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1872791 Title: PulseAudio doesn't see analog output on Dell Inspiron 6400 with STAC9200 Status in pulseaudio package in Ubuntu: New Bug description: PulseAudio currently doesn't see the analog audio output in my Dell Inspiron 6400 laptop with Intel HDA STAC9200 audio. It only sees the SPDIF output. This is the situation in both "pactl list sinks" and pavucontrol. I hear no sound from applications, probably because it's going to SPDIF. I don't have a way to listen to SPDIF to see if that is indeed the case. ALSA sees the analog output and "speaker-test -D plughw:0" plays sound through the laptop's speakers. This problem never happened in Ubuntu 19.10 and earlier. It might have worked earlier in 20.04 also, but I'm not sure of that. Rebooting didn't help. Purging and reinstalling pulseaudio and its automatically installed dependencies didn't help. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pulseaudio 1:13.99.1-1ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.4.0-21-generic. ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC9200 Analog [STAC9200 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bgjenero 1414 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 27' Mixer name : 'SigmaTel STAC9200' Components : 'HDA:83847690,102801bd,00102201 HDA:14f12bfa,14f100c3,00090000' Controls : 22 Simple ctrls : 9 CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Tue Apr 14 13:37:43 2020 InstallationDate: Installed on 2012-01-19 (3008 days ago) InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) SourcePackage: pulseaudio UpgradeStatus: Upgraded to focal on 2020-04-05 (9 days ago) dmi.bios.date: 06/13/2007 dmi.bios.vendor: Dell Inc. dmi.bios.version: A17 dmi.board.name: 0XD720 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/13/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: MM061 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1872791/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
