[ALC662 rev3] Internal speakers not working after crash reboot

[Hadmut Danisch]

Hi,
I have a AIO computer with builtin analog speakers and headphone plug, both working for years, also under 18.04, after countless reboots.

Now I had a hard reboot after the machine had crashed.

Now the speakers remain silent. Plugged in headphones still work.

- I've checked that the speakears are not muted and the volume is between 50 and 100

- I've checked alsamixer and pavucontrol. The show healthy volumes, not muted, speakers selected, and pavucontrol is even showing a moving indicator for the sound level. I did not find any error message.

As I said, headphones work well, but the builtin speakers are dead.

Some parameter must be changed, but I don't find what.

See logs attached.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: pulseaudio 1:11.1-1ubuntu7.1
ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18
Uname: Linux 4.15.0-43-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: hadmut 17547 F...m pulseaudio
 /dev/snd/pcmC0D0p: hadmut 17547 F...m pulseaudio
 /dev/snd/controlC0: hadmut 17547 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sun Jan 20 16:19:55 2019
InstallationDate: Installed on 2018-06-09 (224 days ago)
InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/12/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: H61TIW08.111
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H61H2-TI2
dmi.board.vendor: Medion
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Medion
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrH61TIW08.111:bd10/12/2012:svnMedion:pnG24:pvr1.0:rvnMedion:rnH61H2-TI2:rvr1.0:cvnMedion:ct3:cvr1.0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: G24
dmi.product.version: 1.0
dmi.sys.vendor: Medion