Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 690/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.35
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Short description of error
Blender is not capable of opening a file with a dual-screen UI. Blender claims that the graphics card is unsupported and prompts to close the program. The same problem persists with dual-screen startup UI as well. Blender will run dual-screen UI if the file, or Blender startup, opens with only one window. "Window>New Window" while using Blender does not cause issues during use.
Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]