Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is there a way to somehow selectively "blank" or blacken an individual monitor while it's on through some type of "topical" solution?

I have three monitors, and sometimes I want to view solely on one monitor with the other two monitors blank. As the displays are DisplayPort and HDMI, turning them off or even putting them into power-save sleep causes Windows to jumble the windows and desktops as it reconfigures the system display.

I understand that this is a core function of Windows, and that it's apparently not possible to selectively "sleep" individual monitors without the display subsystem reconfiguring.

Is there perhaps a way to do this with some type of screen blanking program? Perhaps being able to somehow run "blank" screensavers on individual monitors. I've also wondered about a "Darkroom" type program that (topically) blanks out the the rest of the displays, besides the forefront program you're working in.

share|improve this question
Just don't look at them? Make the background solid black and minimize windows? – EBGreen May 10 '13 at 13:27
How about a black Powerpoint/Impress presentation? You can select on which monitor the presentation should run. – Stefan Seidel May 10 '13 at 13:28

Looking for a similar solution brought me here.

Then I had an idea which served the purpose.

Though the thread is old, I am posting in case someone else is looking for similar.

There are certain screensavers that allow options for you to customize which monitors they show on. Pretty straightforward, advanced settings of the screensaver.

From there one would select options to customize for desired results.

share|improve this answer
Your answer is a little terse, if you make reference to a resource such as "certain screen savers" providing a link to an example of such a screensaver would be very helpful! – Zain Patel Jun 26 '15 at 23:38

Right click on desktop and then on display options (assuming that the operating system is Windows 7). You will see the options for your display devices. Specifically, which device should be active and what to display on which device.

share|improve this answer
I notice you've used a lot of txtspk and have numerous spelling mistakes in your answer. Using spellcheck (standard on many browsers!) and using slightly more standard english might have people looking more favourably on your answers and could lead to more upvotes. – Journeyman Geek May 11 '13 at 15:02

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.