I installed the latest upstream kernel for another issue, and found that this issue is resolved by the 4.9 kernel. So I'll add kernel-fixed- upstream tag.
** Tags added: kernel-fixed-upstream -- 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/1649751 Title: [20BXCTO1WW, Intel Broadwell HDMI, Digital Out, HDMI] fails after suspend/resume Status in alsa-driver package in Ubuntu: New Bug description: HDMI sound works initially (actually I'm using DisplayPort), but after suspend/resume it no longer works. Based on what I read out there, I tried `pulseaudio --kill; sudo alsa force-reload; pulseaudio --start`, but to no avail. Happy to debug if there are things I should try. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0c: james 19076 F...m pulseaudio /dev/snd/controlC1: james 19076 F.... pulseaudio /dev/snd/controlC0: james 19076 F.... pulseaudio CurrentDesktop: Unity Date: Tue Dec 13 21:10:09 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2016-07-10 (156 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HDA Intel HDMI Symptom_Jack: Digital Out, HDMI Symptom_Type: Sound works for a while, then breaks Title: [20BXCTO1WW, Intel Broadwell HDMI, Digital Out, HDMI] fails after a while UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/27/2016 dmi.bios.vendor: LENOVO dmi.bios.version: JBET56WW (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET56WW(1.21):bd01/27/2016:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BXCTO1WW dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1649751/+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
