Garbled or Distorted Screen in 10.9.2 in Some Macs Caused By Anti-Aliasing / Smoothing OpenGL Bug
Hi. After a day's research, no sleep and testing, using running Unigine Heaven benchmark on DirectX (Boot Camp) and OpenGL on 10.9.2, the culprit is a bug in 10.9.2's OpenGL anti-aliasing. I've switched off LCD font smoothing for the meantime and anti-aliasing/smoothing in apps' (in their preferences) that use them (like Preview and games). Hopefully, God willing it'll reduce the chances of the screen going distorted/garbled, until there's a fix in the upcoming update.
Advanced happy Easter.
God bless, Matt.16:18
iMac, OS X Mountain Lion (10.8.5), iMac Late 2009