USB 4k adapter with MacBook Pro retina 2013 + Mojave only 30Hz

rboerner · 09-28-2018, 12:14 PM

Putting any other factors aside for the moment, the model monitor you mention having has an option setting within the on-screen display called, "HDMI ULTRA
HD Deep Color" This setting must be 'On' in order for 4K@60Hz to work via HDMI input. LG calls this out in page 23 of the manual for the display here -> https://www.lg.com/us/support-product/lg-27UD88-W

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09-28-2018, 12:14 PM	#2
rboerner Super Moderator Join Date: Jan 2015 Posts: 618	Putting any other factors aside for the moment, the model monitor you mention having has an option setting within the on-screen display called, "HDMI ULTRA HD Deep Color" This setting must be 'On' in order for 4K@60Hz to work via HDMI input. LG calls this out in page 23 of the manual for the display here -> https://www.lg.com/us/support-product/lg-27UD88-W