Have a macbook (snow leopard) and have it connected to a Dell projector but it won't display the desktop image. Says it is searching for signal on the screen.
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You may need to check the settings of your mac book that permits you to output the signal to an external display. Also you may need to purchase a display port adapter (VGA, HDMI or DVI) that is compatible with the input connector on the projector
Dell projectors work best with windows operating system. Replacing the projector would still not resolve the problem since it is not compatible with Macintosh computers. I recommend that you contact Macintosh and ask if there is an available patch to resolve the issue.
try using the generic drivers. in Print & Fax, click on options and supplies, click on the Drivers box and type in GEN.. and choose the Generic drivers. Hope this works.
If you were using the Apple S-video adapter to connect to your Dell projector, please realize that MacBook models with NVIDIA graphics cards do not support this adapter. Otherwise, please be more specific about what model Mac you have and what adapter cable you are using.
Hello,
Your Macbook should automaticaly find the best resolution, if everything was OK. Is there any HDMI input on the dell projector? What projector is it? Is there is an HDMI input, you can use a HDMI to mini DVI cable: better picture and sound than VGA, and will probably solve your problem
Using the Display
When you start the computer with an external device (such as an external
monitor or projector) attached and turned on, the image may appear on either the
display or the external device.
Press <Fn><F8> to switch the video image to the integrated
display only, the integrated display and an external CRT monitor simultaneously,
an external CRT monitor only, the integrated display and an external DVI monitor
simultaneously, external DVI monitor only, and external CRT monitor and external
DVI monitor simultaneously.
Ok what's happening is that you have it set up as an extension of your desktop, you need to mirror the displays. when your projector is plugged in and it is showing only the desktop background, open "System Preferences," click "Displays," click "Positioning" and check the box that says "Mirror Displays." This should do the trick.
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