This bug was fixed in the package alsa-ucm-conf - 1.2.2-1ubuntu0.10
---------------
alsa-ucm-conf (1.2.2-1ubuntu0.10) focal; urgency=medium
* d/p/0031-sof-soundwire-rt1316-DAC-L-and-R-is-replaced-by-DAC.patch
The mixer name is changed in the codec driver rt1316-sdw.c, so need
to handle the new mixer name.
https://github.com/alsa-project/alsa-ucm-conf/pull/109
(LP: #1937980)
* d/p/0032-sof-hda-dsp-Set-Capture-Switch-on-in-the-BootSequenc.patch
The input volume of the external microphone is 0 by default for all
machines with sof audio driver, that is because the capture switch
is set to off by default, need to set it to on in the ucm.
https://github.com/alsa-project/alsa-ucm-conf/pull/107
(LP: #1940788)
-- Hui Wang <hui.w...@canonical.com> Mon, 23 Aug 2021 11:00:48 +0800
** Changed in: alsa-ucm-conf (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1937980
Title:
[SRU] the speaker doesn't work on Dell sdw sdca machine with
kernel-5.13
Status in HWE Next:
New
Status in alsa-ucm-conf package in Ubuntu:
Fix Released
Status in alsa-ucm-conf source package in Focal:
Fix Released
Status in alsa-ucm-conf source package in Hirsute:
Fix Released
Status in alsa-ucm-conf source package in Impish:
Fix Released
Bug description:
[Impact]
After upgrade the linux kernel to 5.13, the mixer names of rt1316 is changed,
the current alsa-ucm-conf will fail to initialize that codec, then users can't
output sound from internal speaker since the internal speaker is routed to the
codec rt1316.
[Fix]
Backport 1 commit (https://github.com/alsa-project/alsa-ucm-conf/pull/109),
after applying the commit, the ucm conf file doesn't initialize the codec with
hardcoded mixer names anymore, it will check the existence of the mixer name
first, then conditionally initialize the codec.
[Test]
sudo rm /var/lib/alsa/*; alsactl init; reboot, play the sound from internal
speaker, the speaker works well.
[Where problems will occur]
The change only affects the rt1316 codec, so far, that codec only connects to
the internal speaker on Dell soundwire sdca audio machine, so it could
introduce regression on the internal speaker like users can't output sound via
internal speaker anymore on the Dell soundwire sdca audio machine. But this
possibility is very low since we already tested the commit on the Dell
soundwire sdca audio machine. We tested it with old kernel and new kernel, all
worked well.
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