On Fri, Jan 22, 2021 at 12:12 PM o1bigtenor <o1bigtenor@xxxxxxxxx> wrote: > > On Fri, Jan 22, 2021 at 8:30 AM Ilia Mirkin <imirkin@xxxxxxxxxxxx> wrote: > > > > On Thu, Jan 21, 2021 at 9:59 PM o1bigtenor <o1bigtenor@xxxxxxxxx> wrote: > > > > > > Greetings > > > > > > Running a debian testing system > > > $ uname -r > > > 5.4.0-4-amd64 > > > with 2 graphics cards. > > > The one I'm working on is a: GP 107 Nvidia GTX 1050 Ti > > > > > > Asus ROG GeForce GX 1050 Ti Strix-GTX1050 Ti with 2 - DVI plus 1 DP1.4 > > > and I HDMI2.0 ports (four in total). > > > > > > I have been running 2 1920x1080 monitors on this card (and its > > > previous nvidia 570) for quite some time. Been running nouveau for the > > > last about 4 years as my last nvidia 570 (started with 3) is EOL by > > > nvidia. > > > Cheers, > > > > -ilia > > > Have gotten quite comfortable using xrandr setting up the second card > > > (the nvidia 570) and its 2 monitors. Nouveau software is: > > > xserver-xorg-video-nouveau -> 1:1.0.16-1 ; > > > xserver-xorg -> 1:7.7+21 ; and libdrm-nouveau2:amd64 -> 2.4.102-1 . > > > > > > I want to add a 4k TV onto the HDMI port on card #1. > > > Can't seem to get the card and the TV talking. > > > > Unfortunately my initial attempt at supporting >340mhz modelines over > > HDMI was incomplete -- worked in my own testing, but not for everyone. > > (You need 597mhz to get 4k@60.) > > $ cvt 3840 2160 > # 3840x2160 59.98 Hz (CVT 8.29M9) hsync: 134.18 kHz; pclk: 712.75 MHz > Modeline "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 > 2168 2237 -hsync +vsync That just plain won't work. HDMI 2.0 maxes out at 600mhz, whereas you're giving it a 712mhz modeline. You're trying to be too clever. This stuff should just work out of the box. What happens if you use a 5.8 or later kernel and don't do any of this? You should just be able to do like xrandr --output HDMI-1-2 --auto. But having a 4k display on a secondary GPU is not a great idea -- I'd flip it around, make the GTX 1050 the primary. Can you provide the output of "xrandr --verbose" before you've messed around with anything like modelines/etc? Thanks, -ilia _______________________________________________ Nouveau mailing list Nouveau@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/nouveau
