I bought a Club 3D mini DP to HDMI adapter and downloaded/bought SwitchResX to unlock and utilize the higher resolutions and refresh rates. I’m working on getting an i5 Mac mini to display to an LG 4K tv for a studio we’re building at the office. Does anyone know how to determine what pixel clock settings correspond to one's TV? My tv is an LG 43UJ6300 4K LED TV. I suspect that this setting (pixel clock) is what's keeping my LG 4K TV from displaying correctly. Close SwitchResX and save when prompted.Īfter following these steps, you should be able to adjust the resolution of your external monitor through the 'Display' window in System Preferences.Adjust the settings to match the appropriate PNG provided in this gist.Add a new custom resolution be clicking the + symbol at the bottom of the window. ![]() After launching SwitchResX, select the external monitor from the list on the left.Once in recovery mode, open a terminal window.Boot into the recovery partition by pressing CMD + R when starting up your Mac.If you are running OSX 10.11 or higher, SIP must be disabled. #Disabling System Integrity Protection (SIP) ![]() For more information, including download links, vist. SwitchResX is a utility that allows users to override the default resolution settings in OSX. #SwitchResX Settings for LG 21:9 UltraWide
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