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 I've tried setting that mode into xrandr - - - - maybe I did something wrong? (xrandr --newmode then xrandr --addmode then xrandr --output > > Ben was able to figure out what was wrong and fix it: > > commit a1ef8bad506e4ffa0c57ac5f8cb99ab5cbc3b1fc > Author: Ben Skeggs <bskeggs@xxxxxxxxxx> > Date: Fri May 29 15:18:47 2020 +1000 > > drm/nouveau/disp/gm200-: fix NV_PDISP_SOR_HDMI2_CTRL(n) selection > > I believe this change is in kernel v5.8. If you don't want to upgrade, > just ensure you pick a 30hz mode-line for that display, which should > enable 4k to work. > Cheers, > > -ilia I would love to 'pick a 30Hz mode-line' but there just aren't any! In fact I have both kernel 5.5 and 5.10 on the machine. I reverted to using the older kernel as with 5.10 it was maybe at worst a couple hours and at best maybe a day when I would come to my machine and I just couldn't get it to snap out of 'sleep' (AIUI) mode. Kernel 5.5 was a little better but the best up time was still measured as less than a couple days - - very occasionally somewhat longer - - then I had to log in from a different machine on the network and get the m/c to reboot. Dunno what's causing the problem there and as I use the machine all the time for business - - - - well - - - - I wasn't prepared to spend an hour a day setting the system back up the way I wanted it using xrandr and starting the various other programs running. Should I perhaps be filing a bug report? > > Also it looks like you have both GPUs plugged in, and slaving one off > the other. If possible, I'd recommend to keep everything on one GPU. > The DP port can (most likely) be used for HDMI or DVI with a passive > converter (not sure if it can be used with HDMI 2.0 though). Having > remote displays is not a great experience (it does work though, and > better than nothing in cases that require it). > Sorta got to have both GPUs in use - - - - there already 2 monitors running on each of the GPUs - - - - I'm trying to add a 4K to the newer graphics card. I've read reports of others where it was a do nothing on M$ yet here in Linux land - - - - - well it just isn't working! I've done some more looking and have found this: $ xrandr --output HDMI-1-2 --mode 3840x2160_60.00 --verbose xrandr: cannot find crtc for output HDMI-1-2 digging into this it seems something might be changed: /sys/class/drm/card0/card0-HDMI-A-1/subsystem/ttm/power/async reads as disabled - - - - so if I change that to 'enabled' is that going to kick the card in the pants so it will output something? (the monitor reads - 'weak or no signal' ) TIA _______________________________________________ Nouveau mailing list Nouveau@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/nouveau
