Windows 11

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Kjell
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Windows 11

Post by Kjell » Mon Jul 19, 2021 3:31 pm

Hi guys,

Bit of a troubling development that started in Windows 10 and is taking another step in Windows 11:

Windows 11 requirements
  • Graphics card: Compatible with DirectX 12 or later, with a WDDM 2.0 driver.
The result of this is that any Intel GPU up to 7th generation chipsets ( Ivy Bridge ) will only support OpenGL 1.1 :( Not exactly sure what the cut-off will be for NVIDIA & AMD GPUs as they haven't released their Windows 11 drivers yet. There's probably not much that can be done about this, but i do think this is worth being aware of.

K

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VilleK
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Re: Windows 11

Post by VilleK » Tue Jul 20, 2021 7:26 am

Hi Kjell,

That sounds strange. How can a requirement for a certain level of DirectX compatibility end up with some GPUs only supporting OpenGL 1.1?

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Kjell
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Re: Windows 11

Post by Kjell » Tue Jul 20, 2021 9:07 am

Hej Ville,
VilleK wrote:
Tue Jul 20, 2021 7:26 am
That sounds strange. How can a requirement for a certain level of DirectX compatibility end up with some GPUs only supporting OpenGL 1.1?
It's not the DirectX part, it's the WDDM 2.0 requirement. GPUs that have reached EOL will ( probably ) not get drivers for Windows 11 and thus get stuck with a software-emulated OpenGL 1.1 when there's no WDDM 2.0 compatible driver available.

Same thing happened with for example 2nd generation Intel GPUs ( Sandy Bridge ) when upgrading to Windows 10. On Windows 8 these chipsets supported up to OpenGL 3.1, but on Windows 10 only OpenGL 1.1 was available :?

K

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VilleK
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Re: Windows 11

Post by VilleK » Tue Jul 20, 2021 9:22 am

I see. I wish there would be a generic OpenGL driver that translates calls to DirectX or Metal. The ANGLE project is interesting but only supports GLES. I would like full desktop OpenGL 1.0 to 3.0 functionality available everywhere.

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