This is affecting me I believe, but with new distros. In 14.04 LTS I had audio (and I can't remember if I had to play around with stuff to get it working), but when I upgraded to 16.04 LTS it no longer showed up.
I have a Nvidia GTX 970 and the hdmi port connected to my TV has sound, but the display port connected to my Dell U3416W monitor does not work. -- 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/1175716 Title: Nvidia Displayport audio card not detected Status in alsa-driver package in Ubuntu: Confirmed Bug description: Up to Ubuntu 12.10 my Displayport audio output was listed in the available audio devices section of the audio settings - with the update to 13.04 it's simply gone. I have tried the tested Nvidia graphics driver, it's not there. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: zordid 2451 F.... pulseaudio /dev/snd/pcmC0D0c: zordid 2451 F...m pulseaudio Date: Thu May 2 20:14:14 2013 InstallationDate: Installed on 2011-10-15 (564 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Title: PCI/internal sound card not detected UpgradeStatus: Upgraded to raring on 2013-04-28 (3 days ago) dmi.bios.date: 09/07/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A19 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 03RG89 dmi.board.vendor: Dell Inc. dmi.board.version: FAB1 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA19:bd09/07/2012:svnDellInc.:pnDellSystemXPSL702X:pvr:rvnDellInc.:rn03RG89:rvrFAB1:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L702X dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1175716/+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