Configuration Feungsake 1520 lightburn on ubuntu

Hello
I’m on Ubuntu 24.04 and lightburn 1.7.07
I want do parameters of my feungsake 1520 (150 x 200cm) with laser module Lanka K60.
But if i start lightburn, the laser module shake any moove if the motherboard is on.
My USB câble is in direct on Pc and the machine parameters say ‘‘communication with controller failed’’
I test on différent USB on my pc but anything changé only name ttyusb(num).
The motherboard is a grbl contrôler 32bits
If you have a solution, thank to answers

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