You have been subscribed to a public bug:
Sound over Laptop HDMI works, but won't work over Dock with Kernels
newer than 2.16 in all ubuntu releases since trusty. Persists with
latest bios (state 16.08.16) Freshinstall makes no difference.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Mon Apr 21 14:23:10 2014
PackageArchitecture: all
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/26/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GQET34WW (1.14 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20C0S0AX00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 Pro
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrGQET34WW(1.14):bd02/26/2014:svnLENOVO:pn20C0S0AX00:pvrThinkPadS1Yoga:rvnLENOVO:rn20C0S0AX00:rvrSDK0E50510Pro:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20C0S0AX00
dmi.product.version: ThinkPad S1 Yoga
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Low
Status: Incomplete
** Tags: amd64 apport-bug bios-outdated-1.30 trusty xenial yakkety
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Lenovo Onelink Pro Dock - No audio via Dock-HDMI
https://bugs.launchpad.net/bugs/1310594
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