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Hi,
I have a Behringer UMC1820 that served me well in many multi-channel concerts I played.
Now I need a few more channels, so I borrowed an ADAT expander (a re-purpused MOTU Traveler mkIII Firewire interface) and connected it with an optical cable.
I tried with two laptops, one Lenovo IdeaPad Flex 5 (11th gen Intel I7) and one Lenovo ThinkPad T14 Gen 3 (12th gen Intel I7).
Other than that, both laptops have the same configuration. Arch Linux (updated today), Pipewire, Wireplumber, all drop-in replacements for pulse, Jack, etc, down to the same pipewire.conf (I copied that over).
They run at the samplerate, the Behringer acts as the main clock, and it seems the devices sync up just fine.
Here's the weirdness:
On the ThinkPad, all ADAT output channels of the Behringer work, I can see the lights blinking and hear the sound.
On the IdeaPad, only ADAT output channels 5-8 work, channels 1-4 are dead.
I've tried different USB ports and so one, but nothing made a difference.
An ideas where I could look? Could there be a setting I missed?
Best,
N
Last edited by oxygen_wobble (2024-04-18 08:22:10)
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Must have been deeply buried in some config file ... for an unrelated reason I re-installed the entire OS, and now it works just fine ...
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