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Is there a way to flip/invert/mirror a video out on a computer with a on board Intel video card? I'm making a large rear projection screen and i need to invert the image to project properly. One of my projectors has a function that automatically inverts the image, but the other one may or may not (likely not) and i need two projectors to drive the system so I'm hoping to do the inversion on the computer side before projecting.

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3 Answers

up vote 1 down vote accepted

Look under your video card settings. Under Windows, Intel video card drivers usually have a system tray icon with a name of something like "graphical preferences". Under this, you can select the screen orientation and such.

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On Linux:

xrandr -x

To undo:

xrandr -o normal
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For Windows, use a screen rotation utility, such as iRotate.

Your video driver must have the required capacity for this (but most now do).

image

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Dose this program support inverting/mirroring? I don't need to rotate the screen, i need to mirror it so that when it projects from the rear it shows up properly at the front. This is very different from simply rotating it. –  Faken May 15 '10 at 19:32
    
@Faken: Video drivers as a rule don't support mirroring, and I didn't manage to find such a software product. –  harrymc May 16 '10 at 8:44
    
@harrymc: Ahh, thats unfortunate, maybe i will need to physically mirror it with an actual mirror. Thanks anyways. –  Faken May 17 '10 at 1:29
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