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DisplayCoreCustomCompositor on special-purpose not working on intel UHD 630 gen iGPUs

mogineering 96 Reputation points
2021-07-21T14:10:44.483+00:00

Hello everyone,

I was just trying the DisplayCoreCustomCompositor and am having an issue where it the application is not outputting any image to the any display marked as special-purpose connected on the iGPU.

Going through debug, I can see the display ownership being taken and the display backlight does turn on, but when the function to send colour to the screen is called nothing happens.
We already tested the display using an dedicated GPU with the same code and it is correctly showing the image, so its not an issue of the display supporting DX11.

We also tested the same code on Intel® HD Graphics 4600 and it is also correctly displaying the application.

Is there any know issue with the UHD 630 family specially? We currently do not have a system capable of being connect to multiple displays to test more recent iGPU versions.

We could really use some help right now, so please give us some guidance.

Best Regards

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  1. mogineering 96 Reputation points
    2021-07-22T08:32:05.377+00:00

    Thanks

    I'm still learning the windows ways, so thanks @Teemo Tang for pointing I was using the incorrect tags.

    Kind Regards

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  1. Teemo Tang 11,411 Reputation points
    2021-07-22T06:21:33.42+00:00

    I see you come here from Microsoft Community, Welcome to Microsoft Q&A Platform.
    But if you want to ask a development related question, you need to add corresponding tag, such as development language or development Platform. If you want to debug something, you need to find out the specific product.
    Windows-10-application-compatibility tag is used for discussing Windows 10 built-in application and Store apps related, it is not related to hardware development and software test.
    You may post your question in github for a code help or Intel Communities for hardware development support.
    Thanks for understanding and cooperating.

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