No sound. Sound goes to dummy output
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: pulseaudio 1:10.0-2ubuntu3.1
ProcVersionSignature: Ubuntu 4.13.0-38.43-generic 4.13.16
Uname: Linux 4.13.0-38-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lukasbirstonas 1259 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 17 21:25:57 2018
InstallationDate: Installed on 2017-12-02 (136 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SourcePackage: pulseaudio
Symptom: audio
Symptom_Card: HDA-Intel - HDA Intel PCH
Symptom_Jack: Green Headphone Out, Front
Title: [20CD0034UK, Conexant CX20751/2, Green Headphone Out, Front] Pulseaudio fails to detect card
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/21/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GQET35WW (1.15 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CD0034UK
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50518 Std
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGQET35WW(1.15):bd04/21/2014:svnLENOVO:pn20CD0034UK:pvrThinkPadS1Yoga:rvnLENOVO:rn20CD0034UK:rvrSDK0E50518Std:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad S1 Yoga
dmi.product.name: 20CD0034UK
dmi.product.version: ThinkPad S1 Yoga
dmi.sys.vendor: LENOVO
Thank you for reporting this bug to Ubuntu.
Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.
See this document for currently supported Ubuntu releases:
https:/
We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.