USB to DMX only work on USB HUB

Ask a question about the usage of QLC+ with the Linux operating system
Post Reply
bosko1333
Posts: 15
Joined: Sun Dec 05, 2021 10:53 pm
Real Name:

Hello!

This may be old known problem but I cannot find the solution.

Is there any changes to be made, to make usb dongle work directly un usb port and not via usb hub? I am using Linux Mint.

Thank you for all in advance.
User avatar
edogawa
Posts: 630
Joined: Thu May 07, 2015 10:34 am
Real Name: Edgar Aichinger

Is your USB hub actively powered?

Maybe your internal port doesn't provide enough current, otherwise I have no idea, it definitely should work.
bosko1333
Posts: 15
Joined: Sun Dec 05, 2021 10:53 pm
Real Name:

Hub is actively powered. Maybe it is because of that.
If connected directly it only sends signal for half a second and stops wprking after that.
Led light on usb dongle is still lit.
On usb hub LED shines purple when working. On usb port directly, the led shines red always..
User avatar
GGGss
Posts: 3052
Joined: Mon Sep 12, 2016 7:15 pm
Location: Belgium
Real Name: Fredje Gallon

WIth professional audio interfaces, I even have 3 who require 2 USB ports before the thing starts working.
It for sure is a power thing. Today USB power is so widely defined, you almost cannot figure out what device needs what kind of power today. They all communicate between modes and capabilities... The 600mA question today also demands an answer to 'ok but at what tension?'
All electric machines work on smoke... when the smoke escapes... they don't work anymore
Post Reply