I'm adding a few corrections/details. Actually sound does not work readily at boot (playing a tune in rhythmbox would not produce any sound).
To 'activate' sound I have to go to settings and click on Test Speakers. After that the speakers would work normally for any period of time as long as there is no playing interruption. If on the other hand I leave the speakers unused for a few minutes, then they won't produce any sound any more unless I reboot and click on test speakers again. When they are in that silent state, pavucontrol shows the signal that is supposed to be sent to the speakers. Other things that I have checked : The speakers work normally under Windows on the same device (dual boot). They can be used over bluetooth by another device whatever the situation (playing not playing) with ubuntu. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1730063 Title: [USB-Audio - Audioengine HD3, playback] fails after a while Status in alsa-driver package in Ubuntu: New Bug description: The speakers are connected to USB. "Digital Output (S/PDIF) - Audioengine HD3" appears in Sound settings. At first try, testing speakers (in sound settings) produced sound, but there was no sound in other applications (like Chromium or Rhythmbox). I had to add "install snd_hda_intel /bin/false" to /etc/modprobe.d /alsa-base.conf to get sound to work in other applications (presumably s/pdif was not directed to default sound card). But then, after a few minutes there is no sound any more (even speaker testing in settings does not produce any sound any more). Turning off the speakers and then back on doesn't help. Nor does disconnecting and reconnecting usb cord. So far, only rebooting restores sound for a while. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: arach 2475 F...m pulseaudio /dev/snd/controlC1: arach 2475 F.... pulseaudio CurrentDesktop: Budgie:GNOME Date: Sat Nov 4 11:17:43 2017 InstallationDate: Installed on 2017-09-24 (40 days ago) InstallationMedia: Ubuntu-Budgie 17.04 "Zesty Zapus" - Release amd64 (20170412) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: Audioengine HD3 - Audioengine HD3 Symptom_Type: Sound works for a while, then breaks Title: [USB-Audio - Audioengine HD3, playback] fails after a while UpgradeStatus: Upgraded to artful on 2017-10-19 (15 days ago) dmi.bios.date: 10/17/2016 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: J61 v03.91 dmi.board.asset.tag: CZC3195C9B dmi.board.name: 158A dmi.board.vendor: Hewlett-Packard dmi.board.version: 0.00 dmi.chassis.asset.tag: CZC3195C9B dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrJ61v03.91:bd10/17/2016:svnHewlett-Packard:pnHPZ620Workstation:pvr:rvnHewlett-Packard:rn158A:rvr0.00:cvnHewlett-Packard:ct6:cvr: dmi.product.family: 103C_53335X G=D dmi.product.name: HP Z620 Workstation dmi.sys.vendor: Hewlett-Packard mtime.conffile..etc.modprobe.d.alsa-base.conf: 2017-11-04T10:57:25.798374 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1730063/+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
