After booting the system the internal laptop speakers and the internal microphone are sometimes not detected, pavucontrol only shows a "Dummy Output".
They were working fine under ubuntu 18.04, stopped working after upgrading to 19.10 and are still not working under 20.04.
HDMI sound output also does not work when the internal sound output does not work, USB sound output works.
The internal speakers and microphone are nearly always detected after running
pulseaudio -k && sudo alsa force-reload
lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
5.4.0-31-generic #35-Ubuntu
@Hui Wang asked me to report this as a new bug in https://bugs.launchpad.net/ubuntu/+source/linux-oem-osp1/+bug/1864061/comments/64
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: timidity 1144 F.... timidity
/dev/snd/pcmC0D0p: timidity 1144 F...m timidity
/dev/snd/seq: timidity 1144 F.... timidity
/dev/snd/timer: timidity 1144 f.... timidity
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
HibernationDevice: RESUME=UUID=aeba982d-83c5-4cbf-83ca-f98664866381
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp.
Bus 001 Device 002: ID 058f:3822 Alcor Micro Corp. HD Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: TUXEDO Computers TUXEDO InfinityBook 14v1
Package: pulseaudio 1:13.99.1-1ubuntu3.2
PackageArchitecture: amd64
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-31-generic root=UUID=efdd2912-a6af-4acf-a006-5d3e7fb3462b ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.4.0-31-generic N/A
linux-backports-modules-5.4.0-31-generic N/A
linux-firmware 1.187
Tags: focal
Uname: Linux 5.4.0-31-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-05-09 (16 days ago)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 09/30/2016
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 18.13
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: X35
dmi.board.vendor: TUXEDO Computers
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: X35
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDECorp.:bvr18.13:bd09/30/2016:svnTUXEDOComputers:pnTUXEDOInfinityBook14v1:pvrTBDbyOEM:rvnTUXEDOComputers:rnX35:rvrType2-BoardVersion:cvnX35:ct10:cvrChassisVersion:
dmi.product.family: Type1Family
dmi.product.name: TUXEDO InfinityBook 14v1
dmi.product.sku: Type1Sku0
dmi.product.version: TBD by OEM
dmi.sys.vendor: TUXEDO Computers
apport information