[ubuntu-studio-users] soft high pitched whine from Jack

[Ian McGrath]

hi
I'm running Ubuntu studio controls on Kubuntu 20.04 lowlatency. I'm using the default configuration of letting jack manage audio, and running pulseaudio into jack via qjackctl. This mostly works fine.

Just 2 things:
I have to manually set up the connections mapping pulse into system. I have a script that does this, but qjackctl can't seem to run it successfully, using its script triggering.

When I start up the computer, if I turn up the audio I can hear a high pitched whine. Normally this does not bother me, but if I have to turn up the audio higher for any reason, there it is. And of course, this just should not be.

My computer is an alienware aurora-r9 I bought from Dell with core i7, 9th gen chip. It's set up as a dual boot with windows and ubuntu running on separate SSDs. When I run windows this whine is not present, so I don't attribute the issue to my audio setup (I'm running the computers' 16th-inch audio out jack into a RCA input to a Technics component audio receiver/amplifier.)

I opened a ticket on askubuntu last month where I included lshw information https://askubuntu.com/questions/1279534/soft-high-pitched-whine-in-the-background-at-all-time-ubuntustudio-20-04-on-ali
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