Public bug reported:
(made with ChatGPTs help, everything was tried, as you can see)
Video works, but audio is silent until I physically unplug and reconnect
the dock. After that, HDMI audio plays correctly.
Audio sink (e.g. Philips UHDTV) is visible in ALSA and PipeWire, but
aplay reports set_params:1398: Channels count non available, indicating
the HDMI audio path is present but not properly initialized.
This issue is not present on older Dell Precision models using the same
dock and OS, so it appears to be a firmware or HDMI-over-DisplayPort
initialization problem specific to newer hardware.
I have:
Fully updated firmware via fwupdmgr
Tested reloading audio drivers, restarting PipeWire, reinitializing
the dock via sysfs — none help
Verified this occurs only on first connection; replug fixes it every
time
Please advise if logs or further hardware info would help.
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: linux-image-6.11.0-26-generic 6.11.0-26.26
ProcVersionSignature: Ubuntu 6.11.0-26.26-generic 6.11.11
Uname: Linux 6.11.0-26-generic x86_64
ApportVersion: 2.30.0-0ubuntu4.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: darri 7187 F.... wireplumber
/dev/snd/seq: darri 7185 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon May 26 17:20:28 2025
InstallationDate: Installed on 2025-02-20 (95 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Dell Inc. Precision 3590
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-26-generic
root=UUID=492c019b-f0ff-488a-8eb1-ae45f45cd480 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.11.0-26-generic N/A
linux-backports-modules-6.11.0-26-generic N/A
linux-firmware 20240913.gita34e7a5f-0ubuntu2.6
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/27/2025
dmi.bios.release: 1.14
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.14.0
dmi.board.name: 0WXTM9
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.17
dmi.modalias:
dmi:bvnDellInc.:bvr1.14.0:bd02/27/2025:br1.14:efr1.17:svnDellInc.:pnPrecision3590:pvr:rvnDellInc.:rn0WXTM9:rvrA00:cvnDellInc.:ct10:cvr:sku0CBA:
dmi.product.family: Precision
dmi.product.name: Precision 3590
dmi.product.sku: 0CBA
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oracular wayland-session
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https://bugs.launchpad.net/bugs/2111745
Title:
HDMI audio is not working on first dock connection (Dell Precision
3590 + WD19DCS + Ubuntu 24.10).
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