Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've hooked up my new Mac Mini to my 47" LG tv with an HDMI cable. Everything works fine, however there's one problem: I get this weird white glow around text (especially "os x native text") like this:

enter image description here

I set the output to 720p (the problem is even worse at 1080p).

Does anyone know how to fix this?


share|improve this question
Did you try another cable yet? – patrix Dec 10 '11 at 11:49
I have the same problem when my 24" 1080p HDTV/monitor is connected to the HDMI of my computer. I tried it both ways: VGA and HDMI. Tiny text is much clearer using the VGA than it is with HDMI using my AMD 7700 video display settings. Actually, with the AMD Catalyst control software disabled, the text was equally sharp with both VGA and HDMI. How can I explain THAT! Reducing the "sharpness" control on my monitor did reduce the glow behind the text, but it did not help with making the text clearer. – user64283 Dec 7 '13 at 3:30

Check if your TV has a “sharpness” setting, and if so turn it all the way down. “Sharpness” is a filter which can help with weak analog signals or rescaled video, but it is not appropriate for computer displays.

share|improve this answer
More often when using a computer connected to a TV, you should turn on a "Game Mode", or any other mode that disables all special rendering functions of the TV. – Jason Salaz Jan 9 '12 at 17:10
Thanks for the tip turning down the sharpness got rid of the text halo on my Sony 40" 1080p LCDTV connected to a Mac Mini via HDMI. – malhal Jan 27 '14 at 18:36

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.