I have a 2nd monitor attached to my Retina MBP. I was on OS X Mavericks and had this problem, where sometimes the displays would go to sleep and when I wake them, many tabs within Chrome look blurry on my main Retina screen.
When I move the tabs over to the non-retina monitor, it actually fixed it. i.e. the solution is to temporarily move the tab to the non-retina monitor (drop it there) and then bring it back and all of a sudden it looks crispy clear again.
Obviously this is a non-scalable/sustainable strategy.
I assumed that by upgrading to Yosemite that would take care of that, but it didn't. I am still seeing it.
Not all tabs are blurry, and the only ones that seem to be blurry are my Chrome tabs. I haven't tried Safari or anything else yet.
Any ideas for what may be causing this?
Here is a screenshot of a Chrome tab looking blurry.