i have a brand new beautiful 4k display (ASUS PB287Q 28" Widescreen WLED Backlit LCD 4K UHD),
which i was using with my linux box, and everything was looking great.
i recently plugged it into my brand new mac pro, which was running OSX 10.9, though i've now upgrade to 10.10.
images still look beautiful, but the fonts look pretty dismal in many programs, including Skim (pdf viewer), and the apple menus, chrome, etc.).
it feels as if they are being rendered inappropriately, i can change the zoom on my screen, which kinda fixes it, but then they all get too large.
here is a link to a screen shot of this text, i think it is probably really hard to judge from a screen shot,
but it is sufficiently bad that i'm thinking of giving the monitor away and getting 2 2k displays.
if anybody else has experienced this, or has any ideas, i'd love to hear them.
thanks, j