Audio hum w/external display?
I'm outputting the video from my MacBook Air (2nd gen) to a plasma using a minidisplay port to DVI and HDMI adapter. The picture is stellar but the sound has this annoying high-pitched humming whenever the video is going. As soon as I turn off the external video, the hum disappears. All other audio when not running external video is fine too.
So I'm wondering -- will a shielded audio cable help? Or is this just a problem with the MacBook Air and external video? Or is it the result of the recessed audio port? Or do I have a lemon?
Anyone else experience this?
Thanks for any feedback.
MacBook Air 1.86, Mac OS X (10.5.6), eMac, iPhone