iMac Intel 27" EMC 2309 (Late 2009, Core 2 Duo 3.06 or 3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHz or Core i7 2.8 GHz) ID iMac11,1

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Problems connecting DELL 2713HM external to iMac

Connecting a 27" iMac & Dell 2713HM monitor together.

Hi guys,

Don't seem to be able to get any answer for this on the Apple forum

Whats the best solution for this problem?

Do I use a male to male DP cable or go down the edid programming path?

I just bought a Dell 2713HM external monitor to connect to my 27" iMac to make it easier for my music and video work.

Is there a solution for this or am I barking up the wrong tree...

regards,

Andy

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Can you give us the model of your iMac. If you don't know it, give us the last four digits of your serial number which you can find in the About This Mac > More Info as well as what your Mac OS-X you are using.

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iMac "Core i5" 2.66 27-Inch (Late 2009)

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Your Dell monitor has a native DisplayPort 1.2 port so you should be able to go DP to DP cable to your 27" iMac.

Have you tried looking at your display settings and move the monitor desktop position from your current iMac display (left or right of it or up and down) so your extended desktop is were you want it. Or, have you set it up as a mirrored display.

As to programing it you shouldn't need to. That was an issue with DVI connected displays. Here's a good writeup on it not that it should matter here Troubleshooting DVI and EDID Issues.

Can you explain what you see (or don't see) and what have you tried. Are you able to even get an image via the VGA connection? Have you spoken with Dell at all?

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hi dan

well thanks for the quick reply.

the dell monitor is to the left of the iMac and is in the resolution of 1080p @ 60 hertz (ntsc)

heres the other info dan

27-inch, Late 2009

Processor 2.66 GHz Intel Core i5

Memory 16 GB 1067 MHz DDR3

Graphics ATI Radeon HD 4850 512 MB

Serial Number 730170AC5PJ

Software OS X 10.9.4 (13E28)

will this help at all dan

regards

andy

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Physically left I assume from what you state here. But, what is the displays setting in the System Prefs > Display setting? You should see two display icons the iMacs and the external Dell Display.

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yeah its says its a dell u2713hm at the top of the box

display is set at

scaled

1080p

standard

60 hertz (ntsc)

with the overscan ticked

its seen as a tv on the "about my mac"

andy

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OK so the display is being 'seen' by the iMac. Now what does the display show you anything at all? Blue screen? Grey screen? Black screen?

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its showing me a picture that has a background on it.. its not mirrored

its the resolution that won't chance

its won't go to 2560 x 1440

all i get is a 1080p @ 60 hertz picture

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