I have an Sony computer PCG 2D1M and I use the HDMI slot to connect with my Bose sound system.
Under Vista I had sound, after Upgrade Windows 7 Ultimate I have no sound, but all others works well.
My acutal driver
is Sigma Tel High Definition Audio Codec, as producer is named IDT.
I tryied to get help form Sony support, but I got a not very helpful answer.
Can anyone help me?