Two FTDI USB Dongle

The issues found when using the Input/Output Manager panel
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RoteRachel
Posts: 1
Joined: Fri Jan 10, 2020 2:51 pm
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Hi,

I have QLC+ 4.12.2 (from AUR) installed on a laptop with Manjaro Linux and two USB-DMX adapters with the FTDI FT232 chip (which don't seem to have a serial number, if I showed you a picture of them you couldn't distinguish them either...).
The problem is that I can make only one put out DMX signals the other one appears to never get patched to a univers.
Here is what I have tryed and observed:
  • enabling or disabling the hotplug feature
  • Connecting the dongels one after the other or both at once
  • blacklisting the FTDI dirver
  • after supposedly patching the second (in chronological sense) to a univers, it still say I should patch it to one to find out how well the timing is
  • if the FTDI diriver isn't blacklisted, only one TTYUSB device from /dev/ vanishes
  • The Problem does not seem to occur on Windows Vista
The user on the laptop has the proper rights and I have reduced the number for channels to 256 per device to prevent flickering.

I hope you can help me with this issue. If you need additional information (lsusb output etc.), tell me. I hope I can provide it. Thanks in advance.
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