On Thu, May 30, 2013 at 11:24:19AM +1000, Russell Coker wrote:
Display Port can do "17.28 Gbit/s of effective video bandwidth, enough for four simultaneous 1080p60 displays (CEA-861 timings) or 2,560 × 1,600 × 30 bit @120 Hz (CVT-R timings)".
There is apparently work in progress on TVs that have 4* the resolution of FullHD, so we will probably see monitors with 3840*2160 resolution soon enough which will use the full bandwidth of Display Port. Such a monitor with "retina" DPI would be 20".
We need new cabling technology to have a "retina" DPI on a monitor larger than 20".
Linus has a neat hack https://plus.google.com/u/0/102150693225130002912/posts/HQsCY7ErAL4 after all, why do you need 120Hz for xemacs? :-) I'm not sure what the definition of retina is, but starting from your 20" retina @ 120Hz then: @ 30Hz would get you 4x the pixels, so a 40" retina monitor @ 60Hz would be something like 28" cheers, robin