Our third Gateway Portal is located in our garage where we have our workout equipment. Previously I had a laptop connected to an external LCD monitor. We attempted to connect the new Portal to the external LCD monitor but it does not work.
LCD monitor - Acer P236H with a VGA and a DVI input only; no HDMI input. I used a $10 HDMI to DVI adapter.
The monitor specs are 1680x1050 H66 kHz V 60Hz on VGA. I don't know if the specs change when it switches to DVI input.

When the Portal is connected and the monitor switches to DVI input, I get the message "Input not supported". Pressing the function button on the monitor to access settings does not work - I press the button, and nothing happens. The screen continues to show "Input not supported." I cannot change any settings manually on this monitor anyways.

I spent 1/2 hour on the phone (after waiting on hold for an hour) with tech support and they could not resolve the issue. When I unplug and plug in the Portal, I get video for a couple of seconds then it goes blank. The tech support suspects there is a mismatch with the resolution.

Unless someone else is aware of a solution, I am looking at purchasing a cheap HDTV with HDMI inputs for the garage. Hopefully my experience will save someone else a few hours of frustration.

Cheers,
Mike :(

What is the output setting on your portal?
You can try the 720p or 480p.

Mike,

Weird, everything I can find online for that model shows 1080p resolution over HDMI. Wonder if they produced two under the same model number.

It is possible that your monitor doesn't support any of the Portal's resolutions,since the resolution you noted is 16 x 10 rather than the 16 x 9 the portal outputs.

You'll likely want to experiment a bit first. :)

Have you tried connecting the portal to one of your other TVs and forcing it to only one resolution setting under TV Settings? I'd imagine it would take a while to try them all...

Edit: lol, combination of posting from my phone and getting interrupted by a phone call, and a much more succinct answer came in ahead of mine :)

I caved in and went to Future Shop. The Philips LCD TV works without any hassles.
Thanks for your replies.