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While watching videos on my desktop(not in browser) I want to make the background dark.
For eg:

In the above pic I want everything to be black except the video. I don't want to make it full screen due to the reduction in the quality of the video.

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up vote 16 down vote accepted

You can do this with the VLC media player:

  1. Install vlcInstall vlc
  2. Load your video.
  3. Uncheck Video ➜ Scale. This will keep the video the same size when viewed in fullscreen.
  4. Hit F11 to make VLC fullscreen.
  5. Hit Ctrl+H to hide the interface.

enter image description here

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+1 for the lulz – htorque Jun 18 '11 at 19:47
Viewer - you just got rick roll'd! And trolololol'd... – nickguletskii Jun 18 '11 at 20:11
+1 - Golden stuff. – boehj Jun 24 '11 at 18:12

This is actually not a solution but may I suggest you to use a more advanced player like VLC?

With VLC you can disable scaling with Video->Scale .

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... I was too late – AlexTheBird Jun 18 '11 at 19:51
I upvoted you :) – neo Jun 18 '11 at 19:53

Probably a nicer solution is the compiz-plugin dim inactive which once enabled will fade out all windows except the active one.

Ensure you have installed the package compiz-plugins-extra

To try it out, run ccsm (compiz-config-settings-manager) and

  • enable Dim Inactive found in the Accessibility section
  • Press <super>p
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For F11 to work, you will have to go to video tab and deselect always fit window. Then you can select the video size.

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Now you can go full screen without the video being stretched.

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