I haven't yet found a production-ready open source virtual display driver for Windows, but there are a lot of "code samples" out there that work, you just need to go through the painful process of compiling and installing them. There's a big thread about this on the deskreen repo [0], maybe they've found something new since I last checked it.

There is, however, a very good remote virtual monitor solution called Spacedesk [1], which has a windows server (with virtual display driver included) and a JavaScript client that runs in any browser (it refuses to run in Firefox, but if you just comment out that line of code it works perfectly fine).

[0] https://github.com/pavlobu/deskreen/discussions/86 [1] https://www.spacedesk.net/

You can write an IndirectDisplay class driver to expose virtual monitors

Probably. That’s worth a shot. Any idea where the base64 stuff came from in the guide?

That is the EDID data for the dummy monitor, it a small binary that contains resolutions and timings pulled from a real monitor.

i mean windows is notorious for having a physical monitor attached. those dummy plugs help but not everyone has one...

> but a way to expose display on a headless system

... RDP?

how about this.... i am using RDP to connect to a windows machine. i have only 1 local monitor so technically i should only see 1 remote display but if i had a way to make dummy local monitors, that would signal rdp to "use all local monitors" and give me multiple remote displays....

same for remote viewers