CoasterJim wrote:I want you to know I resolved this problem on my DV7T 7200. I downloaded the latest WiDi drivers from Intel:
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=22016&ProdId=3227&lang=eng
These seem to be newer than the ones HP provides. I installed ALL other drivers first (display, chipset, etc) and then I installed the WiDi software (link above). The USB-IF xHCI USB Host Controller was recognized just fine. No more unkown devices.
Hope this helps.
Jim
, your solution worked perfect for my HP Envy Dv6 :) Thank you so much!