On Tue, 2015-06-16 at 15:47 -0400, Ilia Mirkin wrote: > On Tue, Jun 16, 2015 at 3:33 PM, Stephen Adler < > [email protected]> wrote: > > Guys, > > > > Is there support for display port 1.2 with the nouveau driver and > > GTX > > 970? > > > > I have a dell 4K monitor and to run it in 4K mode at 60Hz I need to > > configure the monitor to run version 1.2 of the display port > > protocol. > > the nouveau driver works well with display port 1.1 but I only get > > a > > 30Hz refresh rate at 4K resolution. > > The DP 1.2 540MHz rate should be supported. However there is > presently > no MST support, so if the monitor has 2 internal panels, that won't > pan out so well (yet). > > Also note that the GTX 970 requires signed firmware from NVIDIA to > use > any acceleration, and we haven't quite yet figured out how to get > that > going. This means that all you get is modesetting, no acceleration. > Esp with a 4K screen, using llvmpipe may feel slow if you use a GL > compositor, as many modern desktops do. > > -ilia >
Thanks for the quick response. I'm having a hell of a time with the nvidia driver since I have three 4K monitors which hook up to the GTX 970 card, but in linux it will only drive two of the 3 monitors. The monitors do have the dual internal panels each running at 1920x2160 or something like that. For some reason nvidia only drives 4 of the panels (two monitors) per GPU... Is the MST support imminent? or off into the future? Cheers. _______________________________________________ Nouveau mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/nouveau
