DisplayLink dock — no video output on FydeOS 21.1 (evdi driver not included). Any working method?

:pushpin:Question Description

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Please describe the problem you’ve encountered in detail:

  • Description: I’m using a Dell Universal Hybrid Video Dock, which is a DisplayLink-based dock. On FydeOS, USB peripherals, Ethernet, and dock audio all work (it’s detected as a USB device), but there is no video output through the dock — external monitors connected to it are never detected. As far as I can tell, the DisplayLink stack (the evdi kernel module plus DisplayLink’s userspace driver) is not included in FydeOS, and since the rootfs is read-only there’s no way for me to add it myself. Is there any supported or community method to get DisplayLink output working on FydeOS — or is DisplayLink support on the roadmap? For clarity: DP alt-mode output via the laptop’s Thunderbolt 4 port works fine natively, so this is specifically about the DisplayLink video path.

:computer:System & Device Information

  • Hardware & System Configuration:
    • Processor: Intel 12th Gen (Alder Lake) — [fill exact model, e.g. Core i5-1240P] — Lenovo ThinkPad T14 Gen 3 (21AH)
    • Graphics Card: Intel Iris Xe (integrated only, no discrete GPU)
    • RAM: [fill in — e.g. 16GB/32GB dual-channel]
    • FydeOS Version: 21.1
  • Relevant System Logs:
    • Log Details: None attached — the dock enumerates normally as a DisplayLink USB device (vendor ID 17e9) and everything except video works, so there’s no error to capture. Happy to provide /var/log/messages or lsusb output on request.