Comment 0 for bug 1745908

When loading the desktop, the volume icon on the right up of the desktop was uncontrollably switched. And the link-sinks command tells the speaker unavailable.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98
Uname: Linux 4.4.0-112-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: chen 1857 F.... pulseaudio
                      chen 3278 F.... alsamixer
CurrentDesktop: Unity
Date: Mon Jan 29 10:10:33 2018
InstallationDate: Installed on 2018-01-01 (27 days ago)
InstallationMedia: Ubuntu-Kylin 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MID failed
Symptom_Card: 内置音频 - HDA Intel MID
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: chen 1857 F.... pulseaudio
                      chen 3278 F.... alsamixer
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [32493DC, Conexant CX20585, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to xenial on 2018-01-28 (0 days ago)
dmi.bios.date: 09/15/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET53WW (1.23 )
dmi.board.name: 32493DC
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET53WW(1.23):bd09/15/2010:svnLENOVO:pn32493DC:pvrThinkPadX201:rvnLENOVO:rn32493DC:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 32493DC
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO