[Bug 1930188] Re: Acer Aspire 5 sound driver issues

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

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** Tags added: verification-needed-focal

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https://bugs.launchpad.net/bugs/1930188

Title:
Acer Aspire 5 sound driver issues

Status in linux package in Ubuntu:
New

Bug description:
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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