While the hardware (the ribbon cable, the controller board, and the screen itself) is often plug-and-play physically, getting your operating system to recognize a random USB-driven LCD panel is another story. That’s where the comes into play.
If your HYC display isn't working on Ubuntu or Arch: hyc usb display driver
The HYC USB Display Driver is powerful but temperamental. The manufacturer provides the driver, but their support documentation is often translated poorly, and the driver dates are usually 2-3 years old (even on brand new boards). While the hardware (the ribbon cable, the controller
Before buying a random "USB 3.0 HDMI controller" from China, ask the seller for the VID/PID (Vendor ID/Product ID). If it starts with VID_17E9 (DisplayLink), you're safe. If it starts with VID_048D (HYC), be prepared to spend an afternoon troubleshooting driver conflicts. Have you struggled with a HY-780 or HY-UD series board? Let me know your VID/PID in the comments, and I’ll help you find the right driver package. The manufacturer provides the driver, but their support