> Steve Harris hat gesagt: // Steve Harris wrote: > > > Yup, I've had ground loops on my dell when connecting to a projector > > and a mixer. Put a DI box between the laptop and amp or unplug from > > the mains :) I've also found that (here in the US) I can get by with plugging the laptop power supply into one of those adapters that's supposed to be used to connect a 3-prong plug into a 2-prong socket, with a little metal tab you're supposed to connect to the socket's mounting screw to provide ground; but which can also be used to break the ground connection just by ignoring the little tab. For me, that kills the noise. I suspect that a mains isolation transformer might also do the trick, but I don't have one to try. of course, the ground pin is provided for a reason... so please don't sue me if you fry your laptop, or yourself. YMMV and all that. -- Paul Winkler home: http://www.slinkp.com "Muppet Labs, where the future is made - today!"
