none
[Display] Windows 7 WDDM driver cannot display properly on Windows 8 RRS feed

  • Question

  • Hi,

    We have server graphic chips that only support 2D and hardware cursor acceleration. The previous driver can display properly on Windows7. When we install this driver on Windows 8 and find the desktop is black but the cursor still can be displayed properly. Are all themes through DWM on Windows8? If it is true, does it mean there are no solution for WDDM 2D only driver on Windows 8?

    Regards,

    Y.C. Chen

    Monday, March 26, 2012 9:32 AM

Answers

All replies

  • Dear all,

    Does anyone can help to confirm my suspect or give comment if possible?

    Regards,

    Y.C. Chen

    Thursday, March 29, 2012 1:05 AM
  • from the display team:

    In general a WDDM 1.1 driver should work on Windows 8 as long as it complies with all WDDM 1.1 requirements and has a WDDM 1.1 logo. WDDM requires at a minimum of a DX9 class hardware, with a 3D engine, and Pixel shader 2.0 support. Based on the description below, it does not sound like this hardware meets these requirements.

    The Windows 7 client logo required DX hardware, which this clearly isn’t.

    If they logo’d this for Windows Server 2008 R2, then they only had to pass the XDDM level of tests. Therefore, it might be possible that this vendor is shipping a XDDM driver. Can you please check that. However, XDDM is no longer supported on Windows 8.

    For Windows 8, I’d recommend they do a DisplayOnly driver. Here are some useful links for a Display Only Driver.

    Display Only Driver Documentation

    http://msdn.microsoft.com/en-us/library/hh439731(v=VS.85).aspx

    Display Only Driver Sample

    http://code.msdn.microsoft.com/windowshardware/Kernel-mode-display-only-49adea58?SRC=VSIDE

    BUILD sessions:

    Graphics on Server http://channel9.msdn.com/events/BUILD/BUILD2011/SAC-217T
    Transitioning from XDDM to WDDM http://channel9.msdn.com/events/BUILD/BUILD2011/HW-220C



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

    • Marked as answer by Doron Holan [MSFT] Thursday, March 29, 2012 4:20 AM
    • Marked as answer by Y.C. Chen Thursday, March 29, 2012 9:07 AM
    Thursday, March 29, 2012 4:20 AM
  • Hi Doron,

    Thanks for your kindly response. Your information are very useful. Yes, our chips cannot meet the WHQL requirement of WDDM driver, so we provide XDDM driver as our WHQL driver on Windows server 2008 R2. On the other hand, we also provide WDDM driver with our self-signed for some specific customer's need. We are porting "display only driver" now, but we found "display only driver" lack of 2D acceleraion interface, that's why we still try to port our WDDM 1.1  driver to Windows 8. If non-3D WDDM 1.1 driver cannot work on Windows8, the plan porting WDDM 1.1 on Windows8 will be suspend and we will provide "display only driver" on Windows8.

    Regards,

    Y.C. Chen

    Thursday, March 29, 2012 8:59 AM