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Possible Duplicate:
Can I use my laptop as a second monitor for my desk computer?

The laptop works fine but is slow. The desktop works fine doesn't have a monitor.

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marked as duplicate by Dennis Williamson, KronoS, Ivo Flipse Jan 19 '11 at 18:20

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

If you're not looking for high performance graphics, just access to the PC then you could try using VNC.

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Really you need to fix up one of the systems to be the good one ;) Anyway, yes, like other have said you'll need a video input on the laptop, another way would be to network the machines and use VNC, run your hard-core resource hungry apps on the desktop whilst viewing them on the laptop, but this requires a high speed network between the two or you'll suffer a lot of lag.

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You're laptop likely has no video input port, so you cant pipe the desktop output to it. You might be able to run 2d apps over vnc from the desktop, but i wouldn't expect much from it.

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