On Tue, Jan 22, 2013 at 7:36 AM, Ian Pilcher <arequipeno at gmail.com> wrote: > On 01/21/2013 06:05 PM, Csillag wrote: >> But now, thanks to GIGABYTE's PR about Thunderbolt and 4K ( >> http://www.gigabyte.com/MicroSite/323/4k.html ), I realized that it >> might be possible to use a "DisplayPort to Dual-DisplayPort Adapter" to >> split a DisplayPort 1.1 output into two channels, and drive two monitors >> from there. (Of course the resolution is limited, but 1920 x 1200 is >> just what I need.) > > Be careful. When I looked into those "splitters", I found out that > they are closer to "federators". In other words, they take 2 displays > and make them looks like 1 giant display to the operating system. > > So 2 1920x1200 displays would appear to be a single 3840x1200 display. > > This will give you the number of pixels that you expect, but your > desktop environment is unlikely to play all that well with such a > configuration. > > (If anyone knows of a device that doesn't operate this way, please let > me know. I'll almost certainly buy a couple.) Multistream display port should make this possible, though currently no Intel hw supports it (nor any other open-source driver fwiws) :( For your 3 monitor required a decen ivb based board should be good enough, as long as you keep the restriction in mind that 2 of them need to have the same dotclock (which in practice boils down to either 2x DP monitors or 2x identical monitors with the same type of connector). -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
