So… I really don’t know what to make of this but.
Before you look at this and go, “meh, he hacked something”… think again!
It seems people have been possibly miss diagnosing a black/dead output from a 7000 series gpu when it’s passed through.
The common consensus to get an output from this generation in a VM is to hide the kvm leaf and set a random vendor_id, however if you don’t do this, the above happens. The GPU also disables all it’s physical outputs, making it appear to be dead/crashed/hung.
What does this mean?
Well Looking Glass can be used without a dummy plug or monitor attached for one.
What might this mean?
… profit? …
More research is required, but it’s interesting none the less.
It seems that prior generations (ie, 6000 series) do not do this.
Edit: by default this device allows 60Hz up to 3840x2160