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I have Ubuntu running on a Thinkpad Helix. I bought a used Epson EMP-821 overhead projector and found a cable to connect the computer to it.
The cable is USB on the computer side and some sort of square video output on the other (apparently I bought this years ago and I don't remember what you call it).
The projector powers on and which I press "Source Search" it finds the computer (it says Source: Computer2 (Auto)
.
However, I can't determine how to send video to the projector. If this were Windows I believe Fn-7
would do the trick, but it doesn't seem to work on Ubuntu. I also tried Displays -> Detect Displays.
Thanks. I actually think I have one of those. I'll give it a try tonight and report back. – Hack-R – 2016-12-19T19:56:15.250
@Hack-R: Did you get it to work? – bwDraco – 2016-12-23T19:24:52.047