March 2019 may mean the problem started with the released of:
https://launchpad.net/ubuntu/+source/pulseaudio/1:11.1-1ubuntu7.2
But maybe not. Some other package (like the kernel) might also have
changed around then. To test this theory, please try installing the
previous version *.deb files from:
https://launchpad.net/ubuntu/+source/pulseaudio/1:11.1-1ubuntu7.1/+build/14932424
You only need the .deb files and not the .ddeb files. And even then you
only need to replace the ones already installed. To get a list of
packages you need, just run:
dpkg -l | grep 11.1-1ubuntu7.2 | awk '{print $2;}'
** Changed in: pulseaudio (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1827181
Title:
18.04 - Need to purge and reload alsa and pulseaudio to get sound
Status in pulseaudio package in Ubuntu:
Incomplete
Bug description:
When I start my computer (running Ubuntu 18.04.2 LTS), there is no
sound from the speakers plugged into the line-out jack.
In order to get sound, I need to run the following sequence of commands:
sudo apt-get update && sudo apt-get upgrade
sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio pavucontrol
sudo alsa force-reload
reboot
sudo apt-get install pavucontrol
pulseaudio --start
My system is dual-boot with Windows 10, but it doesn't seem to need me
to boot Windows 10 in order to lose the settings in Ubuntu.
This problem started on 19 March 2019 when I was trying to record some
audio with audacity and I've just found the above fix to get things
running, but sadly the problem reverts when I shutdown.
Related packages:
pulseaudio:
Installed: 1:11.1-1ubuntu7.2
Candidate: 1:11.1-1ubuntu7.2
Version table:
*** 1:11.1-1ubuntu7.2 500
500 http://nz.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:11.1-1ubuntu7 500
500 http://nz.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
alsa-base:
Installed: 1.0.25+dfsg-0ubuntu5
Candidate: 1.0.25+dfsg-0ubuntu5
Version table:
*** 1.0.25+dfsg-0ubuntu5 500
500 http://nz.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
500 http://nz.archive.ubuntu.com/ubuntu bionic/main i386 Packages
100 /var/lib/dpkg/status
pavucontrol:
Installed: 3.0-4
Candidate: 3.0-4
Version table:
*** 3.0-4 500
500 http://nz.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1827181/+subscriptions
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