New answers tagged resolution
Well, it seems the solution was pretty simple. I have a power strip with 6 sockets, and each socket has its own power switch. If I fire up the external monitor before the MacBook, the monitor is detected as expected.
I tried to watch a 4k resolution movie on the same model MB Pro non-Retina you've got. There's no chance to watch it smoothly. I also tried to send it to an 2k display which I've got at home. I'm going to try out the one at my family's place which has 4k capability
From Apple.com's Q&A section: The Mac Mini has two video outputs: a mini DisplayPort and a mini DVI port. The mini DisplayPort is the same one you find on the current generation MacBook, MacBook Pros (as well as the Mac Pro) and the mini DVI is the same as the on the old black/white macbook. and: For 1920 x 1080 connect mini display port to DVI ...
I bit the bullet and bought another DisplayPort monitor (Dell U2414H), and sure enough, it works out of the box! I'm currently running a total of three displays - the iMac built in at 1920x1200, the 24" Dell at 1920x1200, and the 27" Dell at 2560x1440.
OS/X has high-DPI functionality too, but Apple seems to have decided to disable it for non-Apple display hardware. A number of places around the web seem to claim that you can re-enable it with the command below, but this has not worked for me and my 4K TV. sudo defaults write /Library/Preferences/com.apple.windowserver.plist DisplayResolutionEnabled -bool ...
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