No sound in Flatpak app no PulseAudio

slackerz · 10-17-2021, 04:26 PM

I'm running a vanilla ALSA based system. I can run apps like Firefox using

Code:

 $ apulse firefox

to get sound using the passthrough emulator. If I do the same with Flatpak.. there is no sound.

Code:

$ apulse flatpak run org.mozilla.firefox

With or without apulse there is no sound.

Anyone know how I can get sound working in Flatpak Firefox?

lovemeslk · 10-19-2021, 02:09 AM

just compile install jack2 and qjackctl and set your input and output device qjackctl .
This way you do not have to fight the flat pack issue.
when using qjackctl
use the script as your ~/.asoundrc

Code:

# override default
pcm.!default {
    type plug
    slave {
        pcm "rjack"
    }
}

# ALSA-to-JACK bridge
pcm.jack {
    type plug
    slave {
        pcm "rjack"
    }
    hint {
        description "JACK bridge"
    }
}
pcm.rjack {
    type jack
    playback_ports {
        0 "system:playback_1"
        1 "system:playback_2"
    }
    capture_ports {
        0 "system:capture_1"
        1 "system:capture_2"
    }
}

Learn to use alsamixer.
If there is a certain program in a flatpack that was compiled against
pulse headers like bluetooth stuff you may have issues.
This is Why I use my Dad's pulseaudio jack2 sync.
but if you want to force input and output on a certain device
this is the way to go.
Make sure those devices are setup in alsamixer.
all HTML5 stuff uses default device. that is why apules works on firefox.
recompile alsa-plugins after you install jack2