Sorry for the double-post, but it sounds like the most stable firmware version folks found
for the ultralite in that thread was a beta version: MOTU AVB 1.3.4+558 which isn't
distributed any more on the MOTU site as far as I can tell...
On Fri, Mar 6, 2020, at 11:27 PM, Erik Schoster wrote:
There was a very useful looking thread about this
around March 30th of 2019 on this mailing list which I've kept bookmarked -- one
reference in there is this thread on the linux musicians forum:
https://linuxmusicians.com/viewtopic.php?f=6&t=18046
Somewhere in there I think I remember someone finding a version of the MOTU firmware that
they found to work reliably with linux, I haven't dug it up yet but maybe I will this
weekend -- would be nice to reclaim this device!
I was surprised after a couple years of basically no issues with it then transferring it
to be used on a mac in a shared environment for a while (where the firmware was upgraded
continuously) to find when I reclaimed it that it no longer worked under linux... I have
the clock sync issue that sounds like a bitcrushed LFO going from a clean sounding signal
and then sputtering out into silence and back again over the course of a minute or two...
All to say I'm hopeful that rolling the firmware back is all that's needed but
maybe someone with more recent direct experience can chime in!