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How to turn on subpixel rendering on external LCD on OS X

(1024) : random.

A quick tip for all the fellow OS X users. It looks like OS X Leopard and Snow Leopard have problems with automatically turning on sub-pixel rendering for fonts when viewing text on external display. This means that your new huge display will show things differently from your built-in one.

After getting bit by this, I’ve discovered a simple fix in Apple support forums:

Open Terminal and enter the following command:

defaults -currentHost write -globalDomain AppleFontSmoothing -int 2

and then log out and back in.

Check the thread for more commands.