[Win8 Server Beta] Display Driver Issue about EDID and Add Taget Modes RRS feed

  • Question

  • Dear all,

    I am trying to port display driver on Windows8 based on the KMDOD driver in developer preview WDK and I found some issues in Windows 8 Server Beta:

    1. I tried to report EDID in DxgkDdiQueryDeviceDescriptor will cause system go to blank. (it works in Windows 8 developer preview version)

    2. Failed to add taget mode if assign HSyncFreq, VSyncFreq or PixelRate in VideoSignalInfo (it works in Windows 8 developer preview version)

    - example for original:

           pVidPnTargetModeInfo->VideoSignalInfo.VSyncFreq.Numerator = D3DKMDT_FREQUENCY_NOTSPECIFIED;
           pVidPnTargetModeInfo->VideoSignalInfo.VSyncFreq.Denominator = D3DKMDT_FREQUENCY_NOTSPECIFIED;       

    - example for changed:

           pVidPnTargetModeInfo->VideoSignalInfo.VSyncFreq.Numerator = 60000;
           pVidPnTargetModeInfo->VideoSignalInfo.VSyncFreq.Denominator = 1000;    

    Does anyone know it is an known issue in Windows8 beta or not? Please help to give comment if possible.


    Y.C. Chen

    Monday, March 19, 2012 2:42 AM

All replies

  • are you saying it worked on the developer preview but not on the Beta?

    d -- This posting is provided "AS IS" with no warranties, and confers no rights.

    Monday, March 19, 2012 3:22 AM
  • Hi Doron,

    Yes!! both issues works on developer preview.


    Y.C. Chen

    Tuesday, March 20, 2012 2:25 AM