Loud Buzzing in External Speakers when PC AC Adapter plugged in
Posted on 2007-11-25
Having trouble with new DV9620US notebook. Just purchased yesterday.
I was trying to watch a Nexflix movie on my TV through the HP notebook. I do this with my Gateway notebook, as well. And I used the Gateway last night to watch the movie because of the problem with the HP.
Here is the set up: Cable Box inputs into DVD Player (AV-1). Computer inputs to front panel on DVD Player (AV-2). DVD Player outputs to TV & Speakers.
I use an s-video cord to connect from HP to DVD Player at AV-2. Then I use Audio Monster cable to connect to the sound ports on DVD Player at AV-2.
When I plug in the power adapter into the HP I get a very loud buzzing noise through my external speakers (not te HP). The noise is louder than the movie sound. When I unplug the power adapter to the HP the noise goes away. I tried moving the HP away from the speakers. This did not help.
Do I need a replacement power adapter?
HP wants me to re-install audio drivers and power management. Does this make sense?