This bug was fixed in the package alsa-ucm-conf - 1.2.4-2ubuntu5
---------------
alsa-ucm-conf (1.2.4-2ubuntu5) impish; urgency=medium
* d/p/0008-HDA-Intel-add-Boost-volume-control-for-Headset-Mic.patch
Add Mic Boost in the HDA Intel ucm, after this change, when users
adjust input volume, the Mic Boost could be adjusted as well as
Capture Volume. (LP: #1930188)
-- Hui Wang <hui.w...@canonical.com> Tue, 14 Sep 2021 10:54:28 +0800
** Changed in: alsa-ucm-conf (Ubuntu Impish)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1930188
Title:
Acer Aspire 5 sound driver issues
Status in alsa-ucm-conf package in Ubuntu:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Status in pulseaudio package in Ubuntu:
Fix Released
Status in alsa-ucm-conf source package in Focal:
Fix Released
Status in linux source package in Focal:
Fix Released
Status in pulseaudio source package in Focal:
Fix Released
Status in alsa-ucm-conf source package in Hirsute:
Fix Released
Status in linux source package in Hirsute:
Fix Released
Status in pulseaudio source package in Hirsute:
Fix Released
Status in alsa-ucm-conf source package in Impish:
Fix Released
Status in linux source package in Impish:
Fix Released
Status in pulseaudio source package in Impish:
Fix Released
Bug description:
SRU Justification for alsa-ucm-conf:
[Impact]
On the machines with the sof audio driver, users could adjust the input
volume from UI, but this only adjusts the "Capture Volume", the "Mic
Boost" can't be changed, if "Mic Boost" is 0, even we adjust the "Capture
Volume" to max, the recorded volume is still very low.
[Fix]
Backport a upstream patch, the patch adds the "Mic Boost" into the
ucm
[Test]
plug a headset, make sure the headset-mic is the active input device,
adjust the input volume to %20, open a terminal and run alsamixer,
check the "Capture Volume" and "Mic Boost" value, then adjust the
input volume to 80%, check those values and we could see both values
are changed.
[Where problems could occur]
This patch could make the parse of input volume control fail, then
the input volume can't be changed anymore when users adjust the
volume from UI. But this possibility is very low, I tested this patch
on many lenovo and dell machines with sof audio driver, all worked
well.
====================================================================
SRU Justification for pulseaudio:
[Impact]
On the machines with the sof audio driver, after booting up, the
active output device is speaker by default, we adjust the output
volume to 100%, then we plug a headphone, and adjust the output
volume from 100% to 20%, now in theory, the speaker's volume is
100%, the headphone's volume is 20%. We plugout the headphone,
the active output device becomes speaker and we expect the volume
changes to 100%, but the output volume for speaker is 20%.
[Fix]
Backport a upstream patch, this patch is already in the pulseaudio-15.0,
so impish already has this fix. Only hirsute and focal need to backport
this patch.
[Test]
adjust speaker's volume to 80%, then plug headphone and adjust headphone's
volume to 20%, unplug the headphone, the speaker's volume becomes to 80%,
plug the headphone, the headphone's volume becomes to 20%.
[Where problems could occur]
The patch writes the output volume to hardware immediately when switching
output device on the machines with sof audio driver, this could introduce
pop noise when changing the output device, but this possibility is very
low, I tested the patch on many lenovo and dell machines with sof audio
driver,
all worked as expected and have no pop noise when switching output device.
====================================================================
The patch was merged to ubuntu 5.13.0 and 5.11.0 generic kernels
with stable update already, but it is not merged to ubuntu 5.4.0
kernel yet, so I sent this SRU for the focal kernel.
[Impact]
Users plug headphone and Mic to the audio jacks, but the system
can't detect them, and couldn't output sound through headphone and
record sound through Mic.
[Fix]
Backport a upstream patch, this will set the Mic to auto-detection
mode and set the headphone to left location.
[Test]
Plug a headset to the headset audio jack, both headphone and mic
could be detected. And output the sound to headphone, could hear
the sound, record the sound through Mic, the sound could be recorded.
[Where problems could occur]
The patch is specific to Acer Aspire 5 machine, if it could introduce
regression, it will make the audio like internal mic and internal spk
stop working. But this possibility is very low.
Hello,
There seems to be lots of issues in sound driver for Acer Aspire
A515-56-57XR with ALC255. I will list all of them below and what I
have tried so far.
1. Headphones appears always plugged in even if they are physically not
2. When actually plugging in headset/earphones it does not auto switch from
speakers/internal mic to headphones/headset microphone automatically and vice
versa, have to manually switch everytime.
3. External headset/earphones microphone won't work at all
After, logs of trial and error I have found a temporary fix. This
seems to use legacy intel drivers which solves all 3 issues mentioned
above but the internal/dmic mic is completely gone (which seems
intentional when using this). Both depreciated dmic_detect and
dsp_driver works, I have been using dsp_driver for now as I need
external microphone at any cost.
End of /etc/modprobe.d/alsa-base.conf
# Headset mic fix
options snd-hda-intel dmic_detect=0 / options snd-intel-dspcfg dsp_driver=1
options snd-hda-intel model=alc255-acer
In another thread similar to this I got some support and at least
fixed the external microphone without using the alsa-base.conf change
in custom modified kernel. I will attach it here. Now, hoping to fix
other issues as well slowly like making headphones unplugged when
physically removing as well as auto switching like the legacy driver
one.
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