If plugging your Macbook Pro Retina into your Samsung monitor using HDMI is producing a blurry picture with illegible fonts, this is how to fix it.
- Switch to the input source that your laptop is connected to.
- Press the "Sources" on your remote/monitor.
- Navigate to the small square in the top right hand corner of the sources list called "Tools".
- Choose the "Edit Name" option for the input source.
- Change it to "PC" or "PC DVI"
- Enjoy!
Why the hell this doesn't just happen automatically is a mystery!
[http://www.neogaf.com/forum/showthread.php?t=448574](NeoGaf Discussion)