I posted this already on the 'jack-devel' mailing list and want to also put a copy here, if that's OK.
I'd like to use Jack on a minimal Arch Linux install without X / Wayland but I faced the problem that my USB MIDI controller doesn't show up in the 'jack_lsp' output. I tried to install Jack and Qjackctl on a Fedora 25 install and while under Qjackctl everything works fine, the USB MIDI controller is listed in the ALSA tab and I can connect it to any other Jack client, it still doesn't show up under 'jack_lsp'. I try to avoid 'a2jmidid' for keeping things simple, and because I read that it's not necessary under Jack1 anymore, wich is the version I want to work with anyway.
Is there any way to get all to Qjackctl functionality to the command line?
ALSA ports not shown under 'jack_lsp'
Moderators: MattKingUSA, khz
Re: ALSA ports not shown under 'jack_lsp'
OK, but if 'jack_lsp' only shows the Jack ports, how does e.g. Qjackctl 'see' the other ports?