0 Replies Latest reply on Mar 2, 2016 12:26 AM by cruisehung

    iDisplayLogicalIndex is -1 in old ATI HD4xxx graphics card


      I'd like to get "iDisplayLogicalIndex" for accessing "ADL_Display_DDCBlockAccess_Get" in old ATI graphics card (HD4890).

      I use "ADL_Display_DisplayInfo_Get" to get ADLDisplayInfo and iDisplayLogicalIndex.

      But it got -1 for the active connector. In new AMD graphics card, it always starts from 0.

      Does it mean I can't access DDC block in old ATI graphics card? Any way to do it?