I'm going to try both of those this week, but.

Apparently others online have success in Mavericks and it fails in Yosemite and also no problems at all under Windows.

Once you fix that, though, there's yet another bug in the frame buffer. I hooked it up with a Display to Mini Display cable and the default resolution is 1920x1080 with a refresh rate of 30hz. I just bought an LG 27UD68P for my Mac mini and I was planning to use it at 2560x1440 for browsing and recording music but also in 4k for movies and series on Netflix. Summary: Yosemite reads the EDID from the TV that clearly indicates it supports 30Hz, and promptly throws it away considering it invalid because it erroneously thinks the pixel clock to be too high (297 MHz). Mac mini (late 2014) and LG 27UD68P refresh rate issue. How can I force the Mac mini to output at 2160p? Or is Apple's marketing wrong and I bought a machine that doesn't actually support 4K over HDMI?Įdit: Apparently, it really is an Apple-acknowledged issue, but they've stubbornly not provided any fix. If I choose 'Scaled' for the resolution, the only options are 1080p, 1080i, 900p, and 720p. I've plugged in my Seiki 39' 4K TV (SE39UY04), but when the 'Best for display' option is chosen, it outputs 1080p, rather than 2160p. Based on Apple's documentation, my Mac mini (Late 2014, mid-range model with Intel Iris) should be able to support 4K video through HDMI.

Mac mini late 2014 4k