[XPS 13 7390, Intel Kabylake HDMI, Digital Out, HDMI] Playback problem

[Reshad Dernjani]

Hi everyone!

I have Samsung Q90R (7.1 Atmos) soundbar connected to my secondary display.
The display is connected to my notebook though the soundbar and all sound options are displayed in the audio settings.
Sound through hdmi/displayport was working few days ago. All other sound options (internal, headset) are still working.

(Ubuntu does a great job converting everything to Dolby Atmos 7.1!)

Kind regards!

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 5.5.13-050513-generic x86_64
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: reshadde 2381 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Mar 28 11:53:23 2020
InstallationDate: Installed on 2020-03-21 (6 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200315)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Digital Out, HDMI
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_Type: Only some of outputs are working
Title: [XPS 13 7390, Intel Kabylake HDMI, Digital Out, HDMI] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.0
dmi.board.name: 0G2D0W
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.4.0:bd11/25/2019:svnDellInc.:pnXPS137390:pvr:rvnDellInc.:rn0G2D0W:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 7390
dmi.product.sku: 0962
dmi.sys.vendor: Dell Inc.

[Reshad Dernjani (reshadd94)]

Found following error messages in the logs:

1. Unable to load libkmod resources: error -12
2. snd_hda_codec_hdmi hdaudioC0D2: HDMI: audio coding xtype 11 not expected

I am running 20.04 on a separate partition. Grub menu still allows me to switch between 20.04 and 19.10.
The /boot partition is mounted.

[Reshad Dernjani (reshadd94)]

Switching kernel to Linux 5.4.28-050428-generic does not resolve the issue.

[Reshad Dernjani (reshadd94)]

Also see:

$ dmesg | grep -i "error\|fail\|warn"

[ 0.525533] Initramfs unpacking failed: Decoding failed
[ 0.602518] i8042: Warning: Keylock active
[ 0.638992] RAS: Correctable Errors collector initialized.
[ 2.213839] EXT4-fs (nvme0n1p5): re-mounted. Opts: errors=remount-ro
[ 2.612061] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-52.ucode failed with error -2
[ 2.612082] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-51.ucode failed with error -2
[ 2.612097] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-50.ucode failed with error -2
[ 2.612112] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-49.ucode failed with error -2
[ 2.868491] thermal thermal_zone8: failed to read out thermal zone (-61)
[ 13.807541] psmouse serio1: Failed to deactivate mouse on isa0060/serio1: -5
[ 14.291742] psmouse serio1: Failed to enable mouse on isa0060/serio1
[ 18.795556] psmouse serio1: Failed to enable mouse on isa0060/serio1