Win10 2004: WDDM 2.7 Support

Discussion in 'Videocards - AMD Radeon Drivers Section' started by Eastcoasthandle, Feb 26, 2020.

  1. Eastcoasthandle

    Eastcoasthandle Ancient Guru

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    This is very interesting and I wonder what kind of latency improvements we should expect coming from 1903/1909. Apparently AMD supports it on 27.20.1000.8009.

    Edit:
    I'm reading that the hardware scheduler is an AMD patent. Who knew?
     
    Last edited: Feb 27, 2020
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  2. Rambo

    Rambo Master Guru

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    Does anyone got these drivers already? I'm on the fast ring and still nothing.
     
  3. Eastcoasthandle

    Eastcoasthandle Ancient Guru

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  4. Rambo

    Rambo Master Guru

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    I have DDU'ed my drivers and still get nothing :E. Well, I don't even get older driver via WU..
     

  5. Eastcoasthandle

    Eastcoasthandle Ancient Guru

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    Oh, I see, if it was there it's probably gone.
    Look here:
    https://www.catalog.update.microsoft.com/home.aspx
    I'm not sure what name they gave it though. Nothing came up by number.
     
  6. Astyanax

    Astyanax Ancient Guru

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    There are no wddm 2.7 drivers available from AMD or on the insider catalog at this time.
     
  7. ektoradsj

    ektoradsj Member

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    In this thread : https://www.reddit.com/r/Amd/comments/f9x1tp/windows_display_driver_model_27_features/
    This guy says that we can force it this way:
    To force enable go to regedit and go to

    HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ GraphicsDrivers
    Then Right-click to create a DWORD 32-bit name: HwSchMode
    The meaning of the values is:
    1 = disabled
    2 = enabled

    Does he mean force gpu scheduling in older drivers if you have 2004 windows version?
     
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  8. Eastcoasthandle

    Eastcoasthandle Ancient Guru

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    Well that explains it then.


    I'm not sure one should do that without the drivers first?
     
  9. boombastik

    boombastik Master Guru

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    -link:-https://onedrive.live.com/?authkey=%21AMfbk6tPtfaps20&cid=E52DCED29CF2AC44&id=E52DCED29CF2AC44%218908&parId=root&action=locate
    from
    JasonMZW20
     
  10. Eastcoasthandle

    Eastcoasthandle Ancient Guru

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    ^^^^^
    Has anyone tried that yet?
     

  11. ektoradsj

    ektoradsj Member

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    I tried them with the 2004 version and they work fine But:
    No hardware scheduling switch in windows 10 graphics settings.
    Only amd software from 19.12.1 and before works.
    Amd settings lite also works with the right driver but its very limited.
    https://imgur.com/a/HpsqJwH

    https://imgur.com/X23mSWj

    Edit:
    Tried all the reg fixes suggested in reddit but still cant make the gpu scheduling switch to appear on settings.
     
    Last edited: Feb 27, 2020
  12. Alessio1989

    Alessio1989 Ancient Guru

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    TLTR: you will not get any magic performance improvements at all. Most of the last weeks modifications of the wiki page are bullcrap.


    Just because wikipedia states magic performance improvements with ALL APIs (which is actually just the possibility to commit heap/resources without make them automatically resident in D3D12.. and I guess some DXGK callback too) it is not a good reason to install unstable OS builds and drivers. The funniest part is they just mention a WDDM 2.0 basic reference for their claim...
     
    Last edited: Feb 27, 2020
  13. Yxskaft

    Yxskaft Maha Guru

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    Ye, one needs to be careful with wikipedia. People posted that over in the Nvidia thread too, and it still doesn't have sources for the claims.

    It's as if a layman has read Microsoft's DirectX developer blog and made a quick modification on Wikipedia. There's nothing public either about the GPU scheduling that's being part of WDDM 2.7 though AFAIK.
     
    Last edited: Feb 27, 2020
  14. Astyanax

    Astyanax Ancient Guru

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    it cannot magically increase fps, but it can improve min fps cases caused by the way the pc talks to the gpu.
     
  15. HARDRESET

    HARDRESET Master Guru

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  16. Alessio1989

    Alessio1989 Ancient Guru

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    D3D12_HEAP_FLAG_CREATE_NOT_ZEROED and D3D12_HEAP_FLAG_CREATE_NOT_RESIDENT are welcomed...But as you know it doesn't work automatically on already compiled software. Other WDDM and DXGK changes documented anywhere? MS Docs lacks in any in-depth documentation about WDDM and DXGK...

    As for "hwschmode" any real valid reference about it?
     
    Last edited: Feb 28, 2020
  17. OnnA

    OnnA Ancient Guru

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    Make HwSchMode.reg file and copy/paste:
    Open it with Notepad....

    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers]
    "HwSchMode"=dword:00000002
     
    Last edited: Feb 28, 2020
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  18. EugeneJackKhoros

    EugeneJackKhoros Member

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  19. MerolaC

    MerolaC Ancient Guru

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    How do you obtain Radeon Settings when using that driver?

    Thank you for sharing it!
     
  20. Astyanax

    Astyanax Ancient Guru

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    Radeon settings or lite from windows store.
     
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