My monitor only would light up by turning on the laptop

MY MacBook Air display will not illuminate u when I turn it on. It worked fine the day before, but now I have a black screen. The gong goes off when starting without changing the screen. I tried f2 nothing helps. Shift, control, option without result.  Quite baffled

Try resetting PRAM.

Some of the display settings are stored in the PRAM.

Reset PRAM: http://support.apple.com/kb/PH14222

Tags: Notebooks

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