Edited 2020.05.19. I bought the Lixada USB-DMX512 on amazon because it seemed a cheap way to manipulate DMX on a computer, which had to be better than a Chauvet Obey series console. Its instructions said to download Freestyler DMX (Windows only ) so I did and it worked. Freestyler seemed a little cumbersome, additionally Windows and I aren't on friendly terms... Found QLC+ and started trying to get it going but the controller wouldn't play. Long story short, here's how to make it work. It's definitely not as good as the DMXKing unit (got two for church) but it works well enough to learn how to use QLC+ at home with just a few fixtures.
1) Open a terminal window.
Ctrl+Alt+T
2) Install vlc:
sudo apt-get install vlc
3) Install libusb:
sudo apt-get install libusb-1.0-0-dev
4) Install qt5:
sudo apt-get install qt5-default
5) Install QLC+
https://www.qlcplus.org/downloads/4.12. ... _amd64.deb
6) Go to the Inputs/Outputs Tab and select uDMX (Output)
7) Enjoy.