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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: eoan
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https://bugs.launchpad.net/bugs/1868061
Title:
linux-image-5.3.0-42-generic regression: no audio output on HP
EliteBook 840 G6
Status in linux package in Ubuntu:
Incomplete
Bug description:
Symptoms:
no hardware audio output device found by PulseAudio on eoan after I
have updated the system yesterday.
Works: linux-image-5.3.0-40-generic
Does not work: linux-image-5.3.0-42-generic
* I suspect this is somewhat related to the recent changes for SkyLake+
platforms between tags Ubuntu-5.3.0-40.32 and Ubuntu-5.3.0-42.34 (I am
referring to the repo at
<https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan>).
* I am using the binary package from the Ubuntu repos, not a self-
built kernel.
* I can help with bisecting and testing if you like. If you like me
to, I need a piece of advice: is
<https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel> the proper up-to-
date documentation for building my Ubuntu kernel from the sources in
the git repo?
What I have tried so far:
I wanted to reload the sound module(s), so I ran the following
command:
$ pulseaudio -k ; sudo rmmod snd_hda_intel snd_soc_skl_hda_dsp
snd_soc_skl_ssp_clk snd_soc_skl snd_soc_skl_ipc
Then I ran:
# modprobe snd-hda-intel
I found the following in my syslog (not totally sure about when exactly this
happened – before or after the rmmod/modprobe):
(see attached file)
Output of ‘sudo lspci -vvnn’ (warning: on 5.3.0-40-generic! Because I am
working in parallel and need a functioning audio setup right now; I can try
this on another kernel in the evening if absolutely necessary, but this should
suffice):
(see attached file)
If more information is necessary for proper debugging, please give me some
instructions what to do. Thanks! ☺
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