Add virtual display driver

[gzxiexl]

Hope to support virtual display if no other displays are present.

[emiksel]

on point. anyone found any solution?

[Scarfmonster]

I'm currently using IddSampleDriver on Windows. so far I haven't had any issues with it.

[F-TD5X]

and also usbmmidd , actually did same thing but store settings in registry

[the-V01D]

no, not just if no displays are present. add an option that adds a virtual display when a device connects in settings. I'm using Sunshine as a second monitor because of its low latency.

[DZXTRICKS]

How to use the IddSampleDriver with Sunshine? i tried changing the Output Name to Display2 (based on windows display setting showed me), but then it output ddprobe.exe [1] [\.\DISPLAY2] returned: 0x00000000 There must be something i configured wrong

Edit: so apparently i had to use dxgi tool to see what display it actually is. The tool tell me instead of Display2 like Windows Display Setting shows, it was Display4. No wonder it failed to show anything

[gzxiexl]

pavlobu/deskreen#86 (comment)

share two project
https://github.com/nomi-san/parsec-vdd
Standalone ParsecVDD, create a virtual super display without Parsec, upto 4K 2160p@240hz.
https://github.com/KtzeAbyss/Easy-Virtual-Display
Create virtual displays in Windows with ease, supporting a range of resolutions and refresh rates (such as 4K 240Hz). Ideal for remote control or graphics card spoofing.

[jimmt41]

Gzxiexl, these are great projects! I was looking for something that would automatically switch primary to the VD for remote streaming.

[dingyifei]

Gzxiexl, these are great projects! I was looking for something that would automatically switch primary to the VD for remote streaming.
@gzxiexl

I'm also trying to get a virtual display so my trimonitor setup wouldn't waste power when I'm not home.

I switch my monitors off by using displayswitch.exe command with the option "internal" so my additional displays are in power saving mode.

Displayswitch.exe probably works for your problem (Switch monitors to clone mode).

https://ss64.com/nt/displayswitch.html

[Dampfwalze]

Just want to throw this in here:

https://github.com/MolotovCherry/virtual-display-rs is a highly configurable virtual display driver written in Rust. It supports multiple virtual monitors and is configurable on the fly using IPC, Windows Pipes in this case. The Plug and Play version comes with a nice GUI Tool to configure it, while it is running. I think this driver can be integrated directly into Sunshine really nicely. This is a very fresh Project, with its first commit just 6 month ago, but seems to be very complete already!

[devxan]

How can this be integrated directly into Sunshine really well?

[Dampfwalze]

Sunshine can just talk to it over a named pipe and send commands to change it's behavior. In fact there is an ongoing discussion about building a library around it's IPC protocol that can be linked into any application. For Sunshine, it is just a metter of distributing the driver and designing the logic on how and when to create a virtual monitor around it.

[gongfuture]

My solution is using usbmmidd_v2

Then add three global commands

1. cmd /c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WUDF\Services\usbmmIdd\Parameters\Monitors" /v 0 /t REG_SZ /d %SUNSHINE_CLIENT_WIDTH%,%SUNSHINE_CLIENT_HEIGHT% /f
2. cmd /c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WUDF\Services\usbmmIdd\Parameters\Monitors" /ve /t REG_SZ /d %SUNSHINE_CLIENT_WIDTH%,%SUNSHINE_CLIENT_HEIGHT% /f
3. Do "C:\path\usbmmidd_v2\deviceinstaller64.exe" enableidd 1 Undo "C:\path\usbmmidd_v2\deviceinstaller64.exe" enableidd 0

All the three commands run as admin, and set the virtual display as the main display

[naddel91]

there you go. but then I open the usbmmidd_v2 app in moonlight, my main monitor flickers a few times and then I get an error in moonlight. I do not have an integrated GPU on my ryzen 5 5600. that should not be the problem here.

[DZXTRICKS]

Sadly as far as I know "Microsoft basic render device" can't be set into encoder in sunshine. So it has to be your XT somehow. Maybe your virtual display needs to be configured so it runs using the XT's driver? I don't know at this point (and yes you have a point with that iGPU missing in Ryzen 5 5600, good choice of hardware if I should say myself 👍🏻, good values)

[naddel91]

I can however start a random game, drag it onto the virtual display manually and then turn off BOTH main monitors in order to make it work. but that is not a solution when I am not at home. goal is to achieve remote play using only moonlight and not having to manually drag game windows onto a virtual display.

[naddel91]

I can start games now with monitors OFF, but moonlight shows the main monitor instead of the virtual one where the game should be running.

so I am "only" missing one thing.
either:

1. a way to switch monitors in moonlight on the fly?
   or 2. a solution to press "Win"+"Shift"+"arrow key" to switch the running application to another monitor.

is that possible here in sunlight/moonlight?

[Darkhost1999]

Enable the touch keyboard on your taskbar inside Windows and you can "Win"+"Shift"+"arrow key"
I always boot desktop with moonlight never directly into a game.

[ClassicOldSong]

Just wrote a little helper to start new virtual display automatically when moonlight client connects, matching client's resolution and framerate settings - just like what Sidecar does

https://github.com/ClassicOldSong/Widecar

[madmalkav]

This is so cool, I'm setting this right now, thanks for your work.

PS: anyone knows if something like this exists for Linux/Wayland?