HDMI with nouveau is limited to 165mhz unfortunately. This is incorrect (the hardware can do more), but nevertheless, that's the present limit. If you can connect the screen over dual-link DVI or DP, you should be able to get the full resolution.
On Thu, Oct 8, 2015 at 5:18 PM, James Lehman <ja...@akrobiz.com> wrote: > Thank you for your quick reply. > > I have a Gigabyte GT-730 2GB card hooked directly via a high quality HDMI > cable to a 65 inch Samsung curved screen LCD 4K monitor. > > I'm not sure what I am looking for in dmesg and xorg log. > > Please advise. > > I have built the 3.19.8 kernel and enabled frame buffer support. > > I can see 7 out of the 8 penguins when I boot. > > My ultimate goal is to be able to boot to a 3840x2160 32 bit (frame buffer) > console. > > Then go into Xfce, or not, as needed. > > I like to write frame buffer apps that run in the console. > > Thank you. > > > > On 10/08/2015 04:44 PM, Ilia Mirkin wrote: >> >> If you only get 1920x1080 in X, chances are that nouveau doesn't >> believe it can do 3840x2160 for one reason or another. There are a >> number of reasons why this might be the case, please provide dmesg, >> xorg log, and information on how the monitor is connected (including >> any A->B type adapters). >> >> -ilia >> >> On Thu, Oct 8, 2015 at 4:21 PM, James Lehman <ja...@akrobiz.com> wrote: >>> >>> Hello. I hope this is in the right place. >>> >>> I just built a new machine and installed Xubuntu and I'm still figuring >>> things out. >>> >>> I'm interested in working with The Linux Frame Buffer. >>> >>> Many years ago, I started a project called ezfb and I would like to >>> continue >>> developing it on a machine capable of 4K. >>> >>> Is it possible to have a frame buffer that does 3840x2160 ? >>> >>> With nouveau installed as my video driver, I can get to a frame buffer >>> console of 1920x1080, but I am limited to that resolution in Xfce as >>> well. >>> >>> With a proprietary nVidia driver installed I can get to 4K in Xfce, but >>> my >>> frame buffer is 640x480, 4 bit color. When I try fbset to change >>> anything, >>> it doesn't work. >>> >>> I have not even bothered to try my code so see of any of it can actually >>> work in the frame buffers I get. >>> >>> Still scratching my head.... >>> >>> Thank you for your time. >>> >>> James. >>> >>> >>> _______________________________________________ >>> Nouveau mailing list >>> Nouveau@lists.freedesktop.org >>> http://lists.freedesktop.org/mailman/listinfo/nouveau > > > _______________________________________________ > Nouveau mailing list > Nouveau@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/nouveau _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau
