Matrox causing USB issues?

broraboy

Honorable
Jan 3, 2014
1
0
10,510
Hi I am new to this so please bear with me. I am trying to remove Matrox Extio F1400 remote graphics cards from our HMI system and replace them with M9120 PCIe x16 cards. Before I did the swap all was good with USB devices. After I swap I cannot detect 2 USB devices, mouse and video grabber. Swap back and all ok. Why is the system not seeing the hardware when the drivers worked before I swapped the graphics card. Please excuse my ignorance.