Bug 205071 - No sound on Dell WD15 dock
Summary: No sound on Dell WD15 dock
Status: RESOLVED OBSOLETE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: All Linux
: P1 high
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-10-02 12:09 UTC by Jean-Louis Dupond
Modified: 2020-01-15 08:17 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.3.2
Subsystem:
Regression: No
Bisected commit-id:

Attachments
alsa-info.sh output (51.60 KB, text/plain)
2019-10-02 12:14 UTC, Jean-Louis Dupond 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Jean-Louis Dupond 2019-10-02 12:09:14 UTC 
I have a Dell WD15 dock which has 2 audio jacks.

Both are shown correctly in ALSA/PulseAudio, but when playing audio, both outputs remain silent.
When the dock is tested on a Windows machine, there is audio output. So the dock seems to work fine.

alsamixer doesn't show any controls for both outputs are they are removed via a quirk.
I tried building 5.3.2 with the following patch reverted:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/usb?h=v5.4-rc1&id=adcdd0d5a1cb779f6d455ae70882c19c527627a8

Then I can set the volume level via alsamixer, but still no sound playing!.

Did also a test via aplay, but neither this does give me any sound.
Comment 1 Jean-Louis Dupond 2019-10-02 12:14:04 UTC 
Created attachment 285303 [details]
alsa-info.sh output
Comment 2 Jean-Louis Dupond 2019-10-02 12:33:06 UTC 
Also tested the following patch:
https://mailman.alsa-project.org/pipermail/alsa-devel/2019-June/151048.html

But no change
Comment 3 Jean-Louis Dupond 2020-01-15 08:17:01 UTC 
This seems to have starting to work in latest kernel / pulseaudio. Closing!
Note You need to log in before you can comment on or make changes to this bug.