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This could be way more practically useful than GPU passthrough. GPU passthrough demands at least two GPUs (an integrated one counts), requires at least two moni

This could be way more practically useful than GPU passthrough. GPU passthrough demands at least two GPUs (an integrated one counts), requires at least two monitors (or two video inputs on one monitor), and in my experience has a tendency to do wonky things when the guest shuts off, since the firmware doesn't seem to like soft resets without the power being cycled. It also requires some CPU and PCIe controller settings not always present to run safely. This could allow a single GPU with a single video output to be used to run games in a Windows VM, without all the hoops that GPU passthrough entails. I'd definitely be excited for it!

Kubuxu 6y ago
> an integrated one counts From experience not always. If the dedicated GPU gets selected as BIOS GPU then it might be impossible to reset it properly for the redirect. I had this problem with 1070. I have to say vGPU is amazing feature, and this possibly brings it to "average" user (as average user doing GPU passthrough can be).
zamadatix 6y ago
It only requires 2 GPUs if you plan on using Linux GUI applications as you game on Windows. Besides, any shared single GPU solution is going to introduce performance overhead and display latency, both of which are undesired for gaming. Great for non-gaming things though - but generally you don't need Windows for those anyways.
Youden 6y ago
> GPU passthrough demands at least two GPUs It doesn't. As I said, you can detach the GPU from the host and pass it to the guest and back again. I elaborated a bit more in another comment [0]. > This could be way more practically useful than GPU passthrough. I think that depends on the mechanics of how it works. How exactly do you get the "monitor" of the vGPU? [0]: https://news.ycombinator.com/item?id=26755390 https://news.ycombinator.com/item?id=26755390
- sudosysgen 6y ago
  You can use "Looking Glass" to access the screenbuffer of the vGPU. Basically, directly read the memory of the guest OS.

Kubuxu 6y ago

> an integrated one counts From experience not always. If the dedicated GPU gets selected as BIOS GPU then it might be impossible to reset it properly for the redirect. I had this problem with 1070. I have to say vGPU is amazing feature, and this possibly brings it to "average" user (as average user doing GPU passthrough can be).

zamadatix 6y ago

It only requires 2 GPUs if you plan on using Linux GUI applications as you game on Windows. Besides, any shared single GPU solution is going to introduce performance overhead and display latency, both of which are undesired for gaming. Great for non-gaming things though - but generally you don't need Windows for those anyways.

Youden 6y ago

> GPU passthrough demands at least two GPUs It doesn't. As I said, you can detach the GPU from the host and pass it to the guest and back again. I elaborated a bit more in another comment [0]. > This could be way more practically useful than GPU passthrough. I think that depends on the mechanics of how it works. How exactly do you get the "monitor" of the vGPU? [0]: https://news.ycombinator.com/item?id=26755390 https://news.ycombinator.com/item?id=26755390

sudosysgen 6y ago
You can use "Looking Glass" to access the screenbuffer of the vGPU. Basically, directly read the memory of the guest OS.