I know there are a ton of threads dedicated to this issue and I have scoured a good many of them. Most of them give the exact same remedies but NONE of them actually do any good. I have 2 MBP's. A 13" from 2010 and a brand new one I purchased in 2015. I have yet to find a way to get this new RMBP to display text on my external monitor anywhere near as good as my 2010 MBP. This is baffling to me. Text just looks terrible and strains the eyes to use. I have tried changing anti-aliasing, text smoothing and even a script that forces RGB mode. ( something about HDMI defaulting its color profile for a TV rather than a monitor). This also did nothing to make text clearer. Is there ANY way to get my external 1920x1080 monitor to look as good through my late 2014 MBP as my 5 year old 13" on the same display? UPDATE: I resolved this issue by using a DVI to HDMI adapter. I don't know why this worked but it worked like a charm.