laptop shut down after projector connects

has a pc that upon connecting to the graphics cable from the projector, it shuts down completely. what could be the causes?
grnowAsked:
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grnowAuthor Commented:
not sure what's the exact cause. this was encountered in different location. back to local, no issue with the laptop.. will close the qn and reward points for suggestion
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mattosaur4Commented:
Faulty VGA port / cable going into the laptop.  Otherwise a faulty graphics card / mainboard on the laptop.
Try an external monitor with a different cable and see if it occurs again.
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mattosaur4Commented:
My guess would be broken pins on the cable it was connecting to at the different location.
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grnowAuthor Commented:
not sure of the exact cause...
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