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csurfr

macrumors 68020
Dec 7, 2016
2,310
1,748
Seattle, WA
What do you have the MacBook Pro plugged into? Are you using the Apple AV Adapter with HDMI? If so, I had the EXACT same issues with my LG 29" UltraWide display and said adapter. Ultimately I couldn't find a fix for it.
 

StoneCold X

macrumors regular
Original poster
Apr 22, 2015
211
66
What do you have the MacBook Pro plugged into? Are you using the Apple AV Adapter with HDMI? If so, I had the EXACT same issues with my LG 29" UltraWide display and said adapter. Ultimately I couldn't find a fix for it.

At the time, it wasn't plugged into anything.
 
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