[Bug 49028] X-Plane 11 automatically falls back to OpenGL (needs support for VK_KHR_external_memory_win32)

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=49028

--- Comment #8 from Stian Low  ---
It's not very clear but it might be the case that X-Plane Demo only offers
OpenGL.

The splash screen reads:
This is X-Plane 11.55 (64-bit, OpenGL) Web Demo Download

If Vulkan is not supported by the demo then it explains why my logs are missing
Vulkan device detection that appear for original reporter.

I don't understand a why X-Plane team would make such a decision to disallow
Vulkan testing for a demo.  Regardless, the full version will be tested just in
case someone made such an odd decision.

X-Plane 12 also offers a demo and only mentions Vulkan so I'll test it also in
attempt to reproduce VK_KHR_external_memory_win32 logs.  It's 25 GB which also
seems like an odd decision just to simply demo.