Client is on a x86 laptop and server/driver on a 4GB SBC ~30% more powerful than a rasbperrypi4 (rock64pro from pine64).  I tried with 8bit and lowest resolution but didn't get better results unfortunately. But the outcome seems more or less random, I will try to reduce the potential source of errors in my next attempt, IE, much better network, changing usb cable, etc...

Read More...