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I frequently watch movies on my computer, but I have two screens. So having something displayed on the other monitor is annoying.

I currently use this to turn off my monitors:

xset dpms force off

I was wondering if there's any way to turn off monitors independently, without having to physically press a button on the monitor, of course.

A program that tells the other monitor to display nothing but black would suffice, but I'd really prefer not to waste the power.

I also have Nvidia TwinView, so applications like grandr aren't aware of both monitors as being independent.

  • Does anyone have any ideas about this? – Neil Nov 16 '10 at 1:53
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I use grandr for monitor management.

apt-get install grandr

It has a handy GUI, which you can start from terminal and offers the functionality you need.

  • I'm use Nvidia TwinView and the proprietary nvidia driver, so grandr only sees one screen that's two screens big. It won't work. – Neil Feb 15 '10 at 5:53

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