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I'm using linux machine with 3 monitors as separate X screens. One for desktop/control and 2 for full-screen video playback. Playback monitors can't be seen so I need the playback screens "previews" on the control screen (the video controls are already there). I'm using 2 VNC servers and 2 VNC viewers for that purpose but its very heavy and cpu-hungry solution even with downscaling. I wonder is there a lighter way to do that, maybe using some X server magic.

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  • Why are you running 3 X servers instead of 1 with 3 monitors ? Oct 9, 2014 at 13:19
  • 1. It's easier for me to set video destination and control screens with $DISPLAY rather than X coordinates. 2. I like that windows are screen bound. 3. Don't remember the details now but it was easier to config with 2 vid cards 4. Why not? 1 server for 3 screens won't solve my problem.
    – Maboroshy
    Oct 9, 2014 at 14:09
  • Well, the problem is now you need all these servers talking to each other to get previews. I'm thinking it might be a lot easier (and more efficient) to communicate within an X session than across one. Oct 9, 2014 at 15:38
  • I'm ready to adopt 1 server config if there's a solution.
    – Maboroshy
    Oct 10, 2014 at 5:40
  • Here's an idea: Having all monitors on the same server opens up all kinds of cool tricks you can do with compiz. There's the scale plugin which can show live previews of a group of windows for instance. The tricky part will be to find the right settings for your case since you can't see the other monitors... Oct 10, 2014 at 14:35

2 Answers 2

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Single display + Compiz

Here's an idea: Having all monitors on the same display opens up all kinds of tricks you can do with compiz. There's the scale plugin which can show live previews of a group of windows for instance. The tricky part will be to find the right settings for your case since you can't see the other monitors...

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Tweak VNC

Otherwise with your current setup, i guess you've explored all the options to make vnc take up less resources ?

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