Am I right in thinking that the VK_KHR_display is for full screen support?
Is this a feature you plan to support in the future?
Also, are you planning to add support for explicit SLI control, like there is in DX12?
Is this exposed by having multiple Queue Families?
How do I tell which Graphics cards have a display attached?
I have tested this with the 364.51 drivers. I am not in a great hurry for these features, just planning out what is needed to add Vulkan support to my Graphics engine.