|
Well, I spoke too soon. There appears to be an element of
unpredictability here -- and I have found a number of forum posts
which seem to repeat the same, with no resolutions. Occasionally,
after boot and controller fireup, if I do the rmmod/modprobe, it all
works...but not usually. This does not change if I run everything
as root. So I am now wondering about the hardware side. I found
one item where jackd 0.119 had a -M parameter to permit different
timing settings for MIDI than for audio, but I don't find that
echoed in more recent versions. My two controller devices (Yamaha
MO8 via direct USB, and UX16 USB/MIDI adapter) don't show up in Jack
MIDI at all, so I don't think that would help. I do wonder about an 'initialization' of the USB side, or 'explicit hardware powerup', or something, but I really do not know where to look. Absolutely nothing in journalctl -f when I try the connections using qjackctl, and no errors in qjackctl, it says that the ALSA patchbay was successfully changed. No USB errors in journalctl -b either, and I have tried both motherboard and PCI USB ports. J.E.B. |
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