I plan to make a presentation with a live demo using my wide screen Ubuntu 12.10 Laptop and a projector. My plan is to connect the projector as a second (small) display and put my slides and live-demo there. It would be convenient, if I could see the projector display on my laptop LCD screen within a window (no zoom or stretch needed). So my question is:
How can I see selected part of a screen within a window?
Thank you for your suggestions!
PS Other possibilities are
- typing on laptop and looking on the projector screen and not at the audience
- Cloning laptop display to the projector display: zooming/stretching wide screen to a small projector screen and also being unable to put some private (like timer) information on the laptop screen.
Original on Unix & Linux: https://unix.stackexchange.com/q/97005/49672