http://bugs.winehq.org/show_bug.cgi?id=57797
--- Comment #17 from Richard Yao richard@ryao.dev --- I have gotten the old DXVA2 code working locally via some hacks, but it implements acceleration via a D3D9 interface and if we tell GeForceNow to use D3D9 by editing `.wine/drive_c/users/${USER}/AppData/Local/NVIDIA Corporation/GeForceNOW/CEF/GeForceNOW.json`, we get a black screen, even if we install DXVK. Coincidentally, wine-staging 10.17 regressed and installing DXVK in it will cause CEF to start crashing.
Getting this working will either require fixing the D3D9 black screen issue or implementing the D3D11 interface for DXVA2. The D3D11 interface appears to be partially implemented via vulkan video if you do `winetricks renderer=vulkan` to set the renderer to vulkan. Also, no matter how this is made to work, AV1 support will need to be implemented to enable higher streaming resolutions and refresh rates.