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Showing posts from December 6, 2015

Running 2560x1080 on LG 29UM57-P on an old MacBook Pro OSX El Capitan

Yes. A mid-2011 MacBook Pro running OSX El Capitan can drive a 2560x1080 monitor via HDMI.
I was not able to get 60 Hz working. I am settling with 53 Hz. I tried many settings before finding something that works. The refresh rate seems fine to me. Maybe the text could be clearer but for a $200 monitor running this resolution, I'll take it. Apple MacBook 2015 retina resolution is 2560 x 1800. Consider buying a better monitor that may literally give you fewer headaches. Install SwitchResXFollow the instructions for disabling SIPAfter rebooting, run SwitchResX via System PreferencesSelect your LG monitorClick Custom ResolutionsClick the + icon Enter these settings (source)Exit SwitchResX and saveRebootRun SwitchResX via System PreferencesSelect your LG monitorClick Current ResolutionsSelect the 2560x1080, 53 Hz settingEnable SIPIf you discover better settings, please leave a comment.