Virtio-GPU with emulated 3d acceleration?

[membranex]

Hi,

I want to test a compositing window manager in proxmox VM and I'm struggling to get it to work. I don't have any gpu for passthrough. I configured vm to use Virtio-GPU (virtio,memory=256) but tiling window manager does not start (blank screen via spice).

Is it possible to make proxmox just emulate gpu somehow or maybe it's some error on vm side?

 

[aufwiz]

You need a hardware to support Virtio-GPU,Otherwise , try VirGL.

 

[membranex]

When I try VirGL I get error about missing hardware, hence I thought it's the other way around