I have a Samsung U32H75 with iMac 21" 2011. I wish to make the fonts large for the UI. I try enabling retina with

sudo defaults write /Library/Preferences/com.apple.windowserver.plist DisplayResolutionEnabled -bool true

But nothing show after reboot.

Is this possible.

  • Did you update OSX to the current version? – user2707001 Dec 4 '17 at 22:42
  • I have Sierra 10.12.6 – mamcx Dec 4 '17 at 23:00
  • I'm wondering why Retina is disabled in the first place then. Even on my 2009 iMac it goes in Retina mode automatically with a 4k monitor connected. – user2707001 Dec 5 '17 at 0:00
  • Does it work when you "brew cask install switchresx" and change it to HiDPI there? – user2707001 Dec 5 '17 at 0:08
  • Did you push the option key when clicking "custom resolution"? – user2707001 Dec 5 '17 at 0:09

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