HT204149: Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)

Learn about Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
chucktwiddy

Q: 27" imac to external display vga or hdmi not detecting

I have a mid 2010 27" imac, with i3 processor, 16 GB ram, 1 TB hdd. Have both a mini dp to vga and mini dp to hdmi adapters. samsung 23" monitor with both hdmi and vga inputs. hdmi adapter never worked, the vga adapter works in a highly intermittant fashion. Did a fresh install of mountain lion, no difference. Very frustrating. Have also reset pram and smc. Anyone have any thoughts?

iMac (27-inch Mid 2010), OS X Mountain Lion (10.8.1)

Posted on Sep 8, 2012 1:53 PM