JACK notes

ALSA handles hardware

Pulse Interconnects it.

Disable pulse starting before using JACK from startup menu

aplay -l to check alsa output channels

arecord -l alsa input channels

pactl list to check pulse

alsa info in /proc/asound

Can't see soundcards as user but can with root. Try adding user to audio group. Works

For each card run

alsa_in -d hw:0 Card0

alsa_out -d hw:0 Card0

These now appear in connect panel of qjackctl

"system" is the computer (I think)

way to test Alsa outputs: speaker-test -Dfront:AudioPCI_2 -c2 -twav

What keeps starting pulse?

disabled in startup applications

autospawn = no in both

~/.pulse/client.conf and /etc/pulse/client.conf

If it is killed it restarts.

This doesn't happen on the console Mate session only the X2go one

Must be started by X2go somehow


The place where the service is running needs firewall modification to allow port 3000 upd through

Only one system can connect to this

Multiple services can be run but results in multiple jackds

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Topic revision: r9 - 29 Jul 2020 - BarryGreen

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