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I have 2 monitors, a retina, 15-inch, mid 2014 mac book pro. I plugged the hdmit output to one monitor, and a mini-display to dvi to the second monitor.

On mac book preference system perferences->displays-> arrangement tab I can see all three screens, however the one connected via mini display port - dvi isn't getting any signal.

Can I used two monitors with a mac book pro, without having to buy some fancy extra device?

  • depends on model/year - please edit your question to provide full model details. – Tetsujin Mar 13 '15 at 20:45
  • If you unplug the HDMI cable, does the mini-DP->DVI-connected monitor get signal, using either Thunderbolt port? This will help isolate where in the chain the problem is occurring. – Dan J Mar 13 '15 at 21:03
  • Must've been a bad cable, found another one that was dvi to hdmi as oppose to dvi to dvi Works now – Iancovici Mar 13 '15 at 23:00
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Your model should support 2 external monitors at max resolution of 2560x1600.

Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, both at millions of colors.

Check your resolution settings, if the cables are working.

https://support.apple.com/kb/SP704?locale=en_US

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