2nd screen not recognised after reconnecting to Macbook Pro

I've got a Macbook Pro at work. It's connected to a 2nd monitor via HDMI cable, but I have to unplug the laptop and take it to meetings sometimes.
Since upgraded to Maversicks, the laptop doesn't recognise the 2nd screen when the laptop is reconnected. I've tried unpluging the cable, putting the laptop to sleep, but no luck yet. The only way seems to work is to restart the laptop with the cable connected to get the 2nd screen. This is quote annoying after a few of times in aday.
Does anyone come across this and find a solution?

Thanks

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Reply back;)
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Hello, chocotac0.
Thank you for visiting Apple Support Communities.
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<Edited By Host>

Can someone delete this thread ?
I just fount out that I confused it with my the other macbook.
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Sorry for the confusion here & Thanks.

2nd screen not recognised after reconnecting to Macbook Pro

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