Mini DisplayPort to VGA blurred

Question

Mini DisplayPort to VGA blurred

I'm using an early 2012 MacBook Pro 13 inch with a ViewSonic VG2230wm monitor using a Mini DisplayPort to VGA adapter plugged into the Thunderbolt port.

The resolution of the external monitor is set to 1680 x 1050 which is the recommended but the quality of the image is poor. All text on webpages and documents has a slight shadow on it and is visibly poorer than the built in display on the MacBook.

My question is will I get a better result if I use a Mini DisplayPort to DVI adapter instead of VGA? The monitor supports both.

Is there a better way of getting a crisp clean image on my external monitor?

Thanks,

Paul.

MacBook Pro, OS X Mountain Lion

Posted on Aug 7, 2012 7:01 AM

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Answer 1

Aug 7, 2012 8:00 AM in response to Paul Lonsdale

Edit: I've just tried the same monitor and adapter on my Mac Mini with the same results. The picture still looks slightly blurred and with a shadow.

The Mac Mini also has a Mini DVI port and when I use a Mini DVI to DVI adapter on the same monitor the picture is nice and crisp.

Will switching to a Mini DisplayPort to DVI fix my blurred vision?!?

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Answer 2

Aug 7, 2012 8:08 AM in response to Paul Lonsdale

Your computer is outputting a digital display. Your external monitor is a digital display. When using a vga adapter you are converting the display from digital to analog. Using a DVI adapter elemiates the conversion and the display stays digital.

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Answer 3

Aug 7, 2012 8:18 AM in response to BobTheFisherman

I'm just off down to PC World to buy a Mini DisplayPort to DVI - hopefully this will make this monitor usable!

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Answer 4

Aug 7, 2012 9:05 AM in response to Paul Lonsdale

Cool - it looks great now I have the proper adapter! I always thought this would be the case but I didn't want to spend the £25 if it wasn't going to make a difference... Thank you...

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