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The reason why the dual setup isn't working is that you are using MiniDP & HDMI when dual monitors via MiniDP and HDMI are not supported, as noted in the product guide. You will have to use a Thunderbolt-ready monitor with a Thunderbolt cable to allow both monitors to be driven from the dock. The reason for this is that your dock is being driven by one ...


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Most likely, yes. The only caveat being that OS X 4k @ 60hz support has been buggy for all of Yosemite. You'll need a high quality Mini-displayport to Displayport cable. Look for DisplayPort 2.0.


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Yes, it's true, and it's not related or limited to Macs, but more of a hardware limitation. It is my understanding that similar to how normal 29,99 DVI adapters only support 1920x1200 max, and you have to go to 99,99 dual-link DVI if you want higher resolution, the HDMI through these cheaper adapters is likewise limited to a single link, and thus you can't ...


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So oddly enough, 10.10.3 didn't seem to make any difference, but the supplemental update that came up yesterday (14D130a) on Software Update (http://9to5mac.com/2015/04/16/apple-releases-os-x-10-10-3-supplemental-update-to-fix-startup-issue/) fixed it right up. Now when I connect the display via Thunderbolt, it comes up at the native 4K resolution at 60hz ...


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stumbled across this question 5 months later, but here are my findings after my own googling as of april 2015: You cant run a 4k TV with only HDMI inputs at 60hz from any Mac. I recently purchased the exact TV you linked, the 40" samsung UHD. It only has HDMI inputs, and my rocketfish DP to HDMI adapter cable going from my mid-2014 rMBP with OSX 10.10.3 ...


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From Everymac *This model supports a simultaneous maximum resolution up to 3840x2160 on two external displays via Thunderbolt 2. Alternately, it can support a single display up to 3840x2160 via Thunderbolt 2 and a single 1080p display at up to 60 Hz, 3840x2160 at 30 Hz, or 4096x2160 at 24 Hz via HDMI. afaik, Macs don't do MST


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I have/had a similar problem with my MacBook Pro and now my newer MBPr with an Asus 27" monitor. I ended up finding a discussion about it and a script in a forum for Dell Monitors. The script took the monitors EDID information directly and created a display profile for it that overrode what OS X was trying to automatically configure. Here is the script on ...


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There's a product by 'StarTech.com' that can do this as described, their "Mini DisplayPort 1.2 to Triple Head DisplayPort Multi Monitor MST Hub". You will need 3x miniDP to DP cables for your Dell monitors. You will then need to pick-up a USB 3.0 network adapter which will support Full Duplex 2Gbps to complete your set-up as described. Unfortunately if you ...


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System Prefs > Displays > Arrangement. Drag one monitor over the other to the opposite side, then move the Menu bar to whichever monitor you prefer. The actual screen is given a large red outline as well as the representation in the control panel as you drag, so you're certain which one is which. BTW, that tenacious holding onto which display is which is ...


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I haven't tried it (not supported for Win8--good for them!), but Maxivista seems to be a solution for using a MacBook/iMac as a monitor for your PC. From the demo, it seems you still need Screen Recycler on your Mac (~$29), (other reqs: VNC and both computers need to be on the same network).


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Are you dual-booting or using a VM? Unless you have a specific reason for it like critical h/w performance or driver incompatibility, I always prefer using a VM for ease of use. And in this case the Windows video driver would be auto installed.



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