Currently Being ModeratedNov 8, 2011 4:54 AM (in response to Flydesign)
Yes, MiniDisplayPort-to-DVI would be the needed adapter.
Yes, plug the adapter into the ThunderBolt port.
If you use the 23" Display as "Extended" you can run it and the internal display at their full native resolutions.
Only when you use "Mirror" then the display with the lower resolution sets the reolution for both displays.
I can't comment on issues and/or flickering since I don't have this configuration to test it.
To my knowledge the flickering is not consistent throughout the 27" iMacs or specified second displays.
Currently Being ModeratedNov 8, 2011 9:07 AM (in response to Fortuny)
Can you please tell me the difference between “extended” and “mirrored” displays?
The flickering problem is on many posts on youtube and other forums. Search imac flickering, be sure to look at the dates of the posts. Here is a link from keynote apple on stage with monitor flickering.
But please let me know what mirror vs extended means.
Currently Being ModeratedNov 8, 2011 9:54 PM (in response to Flydesign)
"Mirror" means that both display are showing the exact same content. The second being a 1:1.clone of the first one.
"Extended" means that both display are showing different content. The second increasing the Screen Real Estate.
As for the flickering:
Be aware that people who have problems are posting far more often than the ones who don't have any problems.
This Forum (and other Forums; YouTube; etc.) are like the Emergency Room of a hospital.
Currently Being ModeratedNov 8, 2011 10:52 PM (in response to Fortuny)
I kind of figured that out about the posts and problems on youtube. Squeaky wheel syndrom.
So with a mini DVI adapter, I will have full resolution on Both monitors as I understand what you are saying: imac 2560 x 1440 and my cinema at 1920 x 1200
with extended mode of course.
Has there been any problems with the imac's combined with the pegusus R4 with disc dismounts in your database?
Currently Being ModeratedNov 9, 2011 4:04 AM (in response to Flydesign)
Exactly that is possible with the two displays.
As for the Pegasus there are two threads currently https://discussions.apple.com/thread/3181015 and https://discussions.apple.com/thread/3370764?tstart=120 discussing various aspects of it.
Have a read and/or participation there.
Sadly I am stucked with my 2009 27" iMac and thus out of any ThunderBolt possibilities.
Currently Being ModeratedDec 8, 2011 12:10 AM (in response to Fortuny)
If I connect my 23" cinema to my 27" imac through thunderbolt with a mini Display port to DVI adapter, will the usb ports work on the back of the 23" cinema display? I may want to add some external devices to them.
OR, do I need to buy the Mini DisplayPort to Dual-Link DVI Adapter.
My Cinema display cable has three wires
Which one do I need.
my cinema display SN is
P.S. If you could answer this post quickly, I am ready to make some major purchases now.
Currently Being ModeratedDec 8, 2011 4:53 AM (in response to Flydesign)
According to this http://support.apple.com/kb/SP79 a SingleLink DVI is sufficient.
The USB-ports don't work with just the MDP-DVI connection.
You would have to connect the USB-cable from the 23" to your Mac (and the FireWire400 cable as well if you want).
Sincde the iMac has a FW800 port you would need an appropriate adapter for the FW400 cable.