Question about what would show up if I plug a monitor on two instances of Intel HD530 iGPU as a mediated device

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alpha754293

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Jan 8, 2023
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I have a system with an Intel Core i7-6700K which has the Intel HD530 iGPU.

I have two VMs, set up in Proxmox 8.4.1 where it is now using said HD530 iGPU as a mediated device, so that I can share the single iGPU between two Windows 11 VMs.

My question is, when I plug a monitor to the HDMI port on the motherboard, how will I know which VM will that port be displaying the output from (which VM)?
 
alpha754293 said:
My question is, when I plug a monitor to the HDMI port on the motherboard, how will I know which VM will that port be displaying the output from (which VM)?
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As I understand it, mediated iGPU doesn't provide any video output.

But I could be wrong about that as I've never got the mediated GPU to function correctly.
 
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DerekG said:
As I understand it, mediated iGPU doesn't provide any video output.
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I know that for a "normal" GPU passthrough, you will get the video out.

I haven't tried plugging a monitor to the HDMI port on the motherboard of the mediated iGPU yet.


DerekG said:
But I could be wrong about that as I've never got the mediated GPU to function correctly.
Click to expand...
I can share the HD530 iGPU between two Win11 VMs and remote into them, respectively.

But now, the reason why I am asking is because I want to see if I would be able to now use the mediate HD530 iGPU, in a win11 VM, to drive a 4K TV, with DTS:X audio passthrough.
 
alpha754293 said:
But now, the reason why I am asking is because I want to see if I would be able to now use the mediate HD530 iGPU, in a win11 VM, to drive a 4K TV, with DTS:X audio passthrough.
Click to expand...
The mediated iGPU is virtualized. It can be used for rendering and graphics acceleration, but as far as I am aware it won't be able to communicate with the hardware of the HDMI or display ports.

What are you seeing when a monitor is connected?

I'd be interested to see how you got it working on the HD530, the last time I tried (about 2 years ago) it was really flaky in operation, so I gave up on the idea.
 
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