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Q: Dual display not working after firmware update (July 2015)

27" iMac 10.9.5

 

I've been using an external display (mini-display to VGA) ever since I got the iMac a year or two ago. It was working this morning but after I applied the latest firmware/software updates it's no longer recognised. No cables have been disturbed and nothing else happened as far as I can see.

 

Any ideas?

 

Thanks

iMac, OS X Mavericks (10.9.5), null

Posted on Jul 13, 2015 3:58 AM

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Q: Dual display not working after firmware update (July 2015)

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