![]() The VIZIO has an HDMI 2.0 port so can do 4K 60Hz but I noticed that Mac OS X (10.10.2) can still only do over it's in-built HDMI port while the same machine, when booted into Windows 8.1 (Bootcamp) can do very easily. So I also bought a VIZIO 50" 4K display ("P502ui-B1E") and a new Macbook Pro 15" Retina Mid 2014 (GeForce 750M) maybe should have ordered the 39" display. This is the part that solves the problem. For EACH monitor listed on the left hand side of the window, uncheck 'Use custom display name system wide' and SAVE using File -> Save (it will save 'modified' at the bottom right corner of the window if you don't). I have to move my head quite a bit - like when talking to 2-3 people at a party and you have to move your head to make eye contact. Go to System Preferences and open SwitchResX. 4a cable requires the use of Display Stream Compression. On a side note, at the native 4K resolution, everything looks the right size on the screen at 3' away but the panel is a bit too big. 3840x2160 60Hz AND 2560x1440 scaled 60Hz (as Macbook pro 4k 60hz disable sip switchresx 1080p. Sometimes it goes for 5 or more minutes! It's a weird bug and I know that opening the macbook pro lid helps it get quickly out of this weird mode. Sometimes when coming out of sleep, the HDMI panel keeps cycling through a black screen, displays "snow" or digital white noise. It worked at 110Hz as well, but there were a lot of lines. ago Nope, the problem is that the os only shows up to 30 Hz when I have the issue. I used SwitchResX to OC the screen in my Mid 2012 15' MacBook Pro, and I was able to get it up to 90Hz or so without issue. Select an option from the Refresh Rate pop-up list. Option -click the Scaled radio button to show the Refresh Rate pop-up list. ![]() Ok, so I got the display and it works just fine - power it up and connect the HDMI cable and it's set to 4K 30Hz (the panel's limit). Navigate to System Preferences Displays Display. ![]()
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