Public bug reported:
Ubuntu 21.04, Firefox 88.0.1.
The video card (Radeon RX 570) has HDMI and DisplayPort outputs. DisplayPort is
used to connect to a monitor that also has loudspeakers. The PC also has
headphones output.
In Settings/Audio, the box Output has a dropdown menu that lists, among
others, Headphones - Family 17h and HDMI/DisplayPort 5 - Ellesmere HDMI
Audio [Radeon RX 470/480/490 / 570/580/590].
When that dropdown is toggled, all applications (e.g. Video) change the
audio output, so the application audio can be heard on the selected
output. With the exception of Firefox, that always sends its audio
output to the headphones, irrespective of the dropdown.
** Affects: firefox (Ubuntu)
Importance: Undecided
Status: New
** Tags: audio pulseaudio sound
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https://bugs.launchpad.net/bugs/1928624
Title:
Firefox does not honour PulseAudio settings to decide what audio
output to use
Status in firefox package in Ubuntu:
New
Bug description:
Ubuntu 21.04, Firefox 88.0.1.
The video card (Radeon RX 570) has HDMI and DisplayPort outputs. DisplayPort
is used to connect to a monitor that also has loudspeakers. The PC also has
headphones output.
In Settings/Audio, the box Output has a dropdown menu that lists,
among others, Headphones - Family 17h and HDMI/DisplayPort 5 -
Ellesmere HDMI Audio [Radeon RX 470/480/490 / 570/580/590].
When that dropdown is toggled, all applications (e.g. Video) change
the audio output, so the application audio can be heard on the
selected output. With the exception of Firefox, that always sends its
audio output to the headphones, irrespective of the dropdown.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1928624/+subscriptions
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