Current state and solutions for OpenGL over Windows Remote [closed]

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According to this article it seems that now RDP handles newer versions of Direct3D and OpenGL on Windows 10 and Windows Server 2016, but by default it is disabled by Group Policy.

I suppose that for performance reasons, using a hardware graphics card is disabled, and RDP uses a software-emulated graphics card driver that provides only some baseline features.

I stumbled upon this problem when trying to run Ultimaker CURA over standard Remote Desktop from a Windows 10 client to a Windows 10 host. Cura shouted “cannot initialize OpenGL 2.0 context”. I also noticed that Repetier Host’s “preview” window runs terribly slow, and Repetier detects only an OpenGL 1.1 card. Pretty much fits the “only baseline features” description.

By running gpedit.msc then navigating to

Local Computer Policy\Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Remote Session Environment

and changing the value of

Use hardware graphics adapters for all Remote Desktop Services sessions

I was able to successfully run Ultimaker CURA via with no issues, and Repetier-Host now displays OpenGL 4.6, and everything finally runs fast as it should.

Note from genpfault:
As usual, this Policy is kept in the HKLM registry group in 

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services

Set REG_DWORD:bEnumerateHWBeforeSW to 1 to turn ON using GPUs in RDP.

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