OK, after playing with it a little more I've discovered that it is not
starting google chrome that does this, but playing an embedded video (on
youtube, several but not tried any other site).
Here are the outputs of both commands before and after.
Before starting the browser.
james@middenface:~$ sudo fuser -v /dev/snd/*
[sudo] password for james:
USER PID ACCESS COMMAND
/dev/snd/controlC0: james 2169 F.... pulseaudio
james@middenface:~$ pactl stat
Currently in use: 1 blocks containing 64.0 KiB bytes total.
Allocated during whole lifetime: 99 blocks containing 5.6 MiB bytes total.
Sample cache size: 0 B
User name: james
Host Name: middenface
Server Name: pulseaudio
Server Version: 0.9.21-63-gd3efa-dirty
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_00_1b.0.iec958-stereo
Default Source: alsa_input.pci-0000_00_1b.0.analog-stereo
Cookie: 729f0954
After starting the browser but before playing a video.
james@middenface:~$ sudo fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/controlC0: james 2169 F.... pulseaudio
james@middenface:~$ pactl stat
Currently in use: 1 blocks containing 64.0 KiB bytes total.
Allocated during whole lifetime: 8819 blocks containing 20.7 MiB bytes total.
Sample cache size: 0 B
User name: james
Host Name: middenface
Server Name: pulseaudio
Server Version: 0.9.21-63-gd3efa-dirty
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_01_00.1.hdmi-stereo
Default Source: alsa_input.pci-0000_00_1b.0.analog-stereo
Cookie: 729f0954
And after the video is run.
james@middenface:~$ sudo fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/controlC0: james 2169 F.... pulseaudio
james@middenface:~$ pactl stat
Currently in use: 1 blocks containing 64.0 KiB bytes total.
Allocated during whole lifetime: 53191 blocks containing 111.2 MiB bytes total.
Sample cache size: 0 B
User name: james
Host Name: middenface
Server Name: pulseaudio
Server Version: 0.9.21-63-gd3efa-dirty
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_01_00.1.hdmi-stereo
Default Source: alsa_input.pci-0000_00_1b.0.analog-stereo
Cookie: 729f0954
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https://bugs.launchpad.net/bugs/802289
Title:
Sound Stops when Chrome launches, but works in chrome
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