Apollo cannot start stream with dual GPU setup, any idea?

[kohanyirobert]

Hey! 👋 I've recently got into game streaming, found Sunshine, but since it wasn't able to handle my dual GPU laptop (ASUS ROG Zephyrus G14 2022) I've started looking into alternatives and found Apollo. For my use case both could work but since the README states

If you want to use your dGPU, just set the Adapter Name to your dGPU and enable Headless mode in Audio/Video tab, save and restart your computer. No dummy plug is needed any more, the image will be rendered and encoded directly from your dGPU.

I thought I'll give it a shot. To no avail.

My adapters are an AMD Radeon(TM) Graphics (iGPU) and AMD Radeon RX 6800S (dGPU) and whatever I do I cannot get Apollo to work consistently Currently, I restarted my machine and "flipped" the MUX switch in the laptop so that everything is routed to the dGPU by default, but still I get the following

[2024-09-17 19:15:24.237]: Info: Virtual Display created at \\.\DISPLAY12
[2024-09-17 19:15:24.249]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2024-09-17 19:15:24.249]: Info: Trying encoder [nvenc]
[2024-09-17 19:15:24.765]: Error: Failed to locate an output device
[2024-09-17 19:15:25.267]: Error: Failed to locate an output device
[2024-09-17 19:15:25.984]: Error: Failed to locate an output device
[2024-09-17 19:15:26.493]: Error: Failed to locate an output device
[2024-09-17 19:15:26.707]: Info: Encoder [nvenc] failed
[2024-09-17 19:15:26.707]: Info: Trying encoder [quicksync]
[2024-09-17 19:15:27.211]: Error: Failed to locate an output device
[2024-09-17 19:15:27.725]: Error: Failed to locate an output device
[2024-09-17 19:15:28.442]: Error: Failed to locate an output device
[2024-09-17 19:15:28.948]: Error: Failed to locate an output device
[2024-09-17 19:15:29.152]: Info: Encoder [quicksync] failed
[2024-09-17 19:15:29.152]: Info: Trying encoder [amdvce]
[2024-09-17 19:15:29.654]: Error: Failed to locate an output device
[2024-09-17 19:15:30.162]: Error: Failed to locate an output device
[2024-09-17 19:15:30.877]: Error: Failed to locate an output device
[2024-09-17 19:15:31.387]: Error: Failed to locate an output device
[2024-09-17 19:15:31.594]: Info: Encoder [amdvce] failed
[2024-09-17 19:15:31.595]: Info: Trying encoder [software]
[2024-09-17 19:15:32.102]: Error: Failed to locate an output device
[2024-09-17 19:15:32.611]: Error: Failed to locate an output device
[2024-09-17 19:15:33.322]: Error: Failed to locate an output device
[2024-09-17 19:15:33.826]: Error: Failed to locate an output device
[2024-09-17 19:15:34.031]: Info: Encoder [software] failed
[2024-09-17 19:15:34.031]: Fatal: Unable to find display or encoder during startup.
[2024-09-17 19:15:34.031]: Fatal: Please ensure your manually chosen GPU and monitor are connected and powered on.
[2024-09-17 19:15:34.161]: Info: Virtual Display removed successfully
[2024-09-17 19:16:04.013]: Info: Virtual Display created at \\.\DISPLAY12

however if I disable my iGPU driver in the Device Manager it works. Still not optimal.

Wanted to start this discussion to see how others deal with this, whether there's another solution, etc.

Thanks chipping in.

[ClassicOldSong]

Can you post a screen shot of your Audio/Video tab and display adapters section in your device manager? Does it work without headless mode and left the adapter name config blank?

[kohanyirobert]

Hmm, using regedit as suggested did the trick at first look.

I'll do a few restarts and test it some more tho'!

[kohanyirobert]

dxgi-info after I successfully connect using headless mode, doing the regedit trick and having my two GPUs enabled (no fiddling with them).

====== ADAPTER =====
Device Name      : AMD Radeon RX 6800S
Device Vendor ID : 0x00001002
Device Device ID : 0x000073EF
Device Video Mem : 8146 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
    Output Name       : \\.\DISPLAY32
    AttachedToDesktop : yes
    Resolution        : 2312x1080

====== ADAPTER =====
Device Name      : AMD Radeon(TM) Graphics
Device Vendor ID : 0x00001002
Device Device ID : 0x00001681
Device Video Mem : 483 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
====== ADAPTER =====
Device Name      : AMD Radeon RX 6800S
Device Vendor ID : 0x00001002
Device Device ID : 0x000073EF
Device Video Mem : 8146 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
====== ADAPTER =====
Device Name      : Microsoft Basic Render Driver
Device Vendor ID : 0x00001414
Device Device ID : 0x0000008C
Device Video Mem : 0 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======

[kohanyirobert]

It seems it works, even after I restart I'm consistently able to connect to my laptop.

Btw. I didn't update Apollo, only did the regedit trick.

Thanks for help mate!

[ClassicOldSong]

It's still recommended to upgrade, the new version contains more bug fixes and the new permission system is really nice.

[kohanyirobert]

Will do eventually. The permission system is a non-issue for me.
The killer feature of Apollo over Sunshine is virtual display management. Apollo enables/disables this automatically, if this works, I'm set.

[kohanyirobert]

Well, still no good. Now I experience the following:

1. Both iGPU + dGPU are enabled
2. Launching Apollo in headless mode, adding my adapter's name in regedit
3. Starting Virtual Desktop connects but the stream is black.

This is the dxgi-info.exe output while connected to the stream. And I'm attaching the log also.

It seems the correct adapter is used, but in the logs there's no mention of Radeon RX 6800S, only the iGPU's adapter name is there. Tried setting the adapter name after this in Apollo, but then I get the 503 error on the client, the stream doesn't even start. Not sure what made it work yesterday ...

sunshine.log

====== ADAPTER =====
Device Name      : AMD Radeon RX 6800S
Device Vendor ID : 0x00001002
Device Device ID : 0x000073EF
Device Video Mem : 8146 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
    Output Name       : \\.\DISPLAY12
    AttachedToDesktop : yes
    Resolution        : 2312x1080

====== ADAPTER =====
Device Name      : AMD Radeon(TM) Graphics
Device Vendor ID : 0x00001002
Device Device ID : 0x00001681
Device Video Mem : 483 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
====== ADAPTER =====
Device Name      : AMD Radeon RX 6800S
Device Vendor ID : 0x00001002
Device Device ID : 0x000073EF
Device Video Mem : 8146 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======
====== ADAPTER =====
Device Name      : Microsoft Basic Render Driver
Device Vendor ID : 0x00001414
Device Device ID : 0x0000008C
Device Video Mem : 0 MiB
Device Sys Mem   : 0 MiB
Share Sys Mem    : 15990 MiB

    ====== OUTPUT ======

[ClassicOldSong]

It seems that this can only be solved if I can physically get my hands on one of these devices...

Too weird for having one card showing two entries...

[ClassicOldSong]

One last thing you can try: manually set sunshine.exe and ddprobe.exe to "High Performance" in Windows settings

[ClassicOldSong]

Looked at your log and found something weird. Would you try this build and see if it works?

https://github.com/ClassicOldSong/Apollo/releases/tag/v0.2.2-alpha.2

[kohanyirobert]

One last thing you can try: manually set sunshine.exe and ddprobe.exe to "High Performance" in Windows settings
Looked at your log and found something weird. Would you try this build and see if it works?

Will try both when it breaks again, currently the previous config I reported working (then not working) works again 😄 ... my hunch is that somehow somewhere Windows or some subsystem keeps track of what GPU was last used for what screens (external or not) or similar and only in some constellation of states/settings it works.

I'll keep an eye on this.