Arch Linux

machavesp

Member

Registered: 2022-09-12

Posts: 1

x11- Slowdown problem on multiple screens

Hi community arch linux

I have a problem that I would like to hear any kind of solution to the respect.

It is a videoWall of 8x2 monitors managed by a single server with the following characteristic.

    Nvidia Quadro NVS 810 (in total there are 2 graphics cards with 8 outputs each, they are cards with 2 integrated GPUs each)
    Driver version: 515.65.01
    OS: RedHat8
    Desktop: Xfce

The problem we have is that when we start to fill the video monitors, it starts to slow down a lot. We have verified that it is not a CPU load error or a bandwidth error since it happens to us with both network video and local video. I have tested with composer and without composer of the Xfce desktop. I do not know if the fault is at the hardware level due to performance or limitations or some type of configuration at the software level. This is our Xorg.conf configuration for all 16 monitors.

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "nvidiaXineramaInfo" "FALSE"
    Option         "Stereo" "0"
    Option         "BaseMosaic" "on"
    Option         "nvidiaXineramaInfoOrder" "DFP-1"
    Option         "metamodes" "GPU-e7b9101d-28fc-0d43-75e0-56aaab60746a.DP-2: 1920x1080 +13440+0,GPU-e7b9101d-28fc-0d43-75e0-56aaab60746a.DP-3: 1920x1080 +11520+0,GPU-e7b9101d-28fc-0d43-75e0-56aaab60746a.DP-0: 1920x1080 +9600+0,GPU-e7b9101d-28fc-0d43-75e0-56aaab60746a.DP-1: 1920x1080 +7680+0,GPU-9184e582-a337-7eb6-8218-dff93b13b314.DP-2: 1920x1080 +5760+0,GPU-9184e582-a337-7eb6-8218-dff93b13b314.DP-3: 1920x1080 +3840+0,GPU-9184e582-a337-7eb6-8218-dff93b13b314.DP-0: 1920x1080 +1920+0,GPU-9184e582-a337-7eb6-8218-dff93b13b314.DP-1: 1920x1080 +0+0,GPU-716470f9-5bef-da9b-6646-8aad178aecca.DP-2: 1920x1080 +13440+1080,GPU-716470f9-5bef-da9b-6646-8aad178aecca.DP-3: 1920x1080 +11520+1080,GPU-716470f9-5bef-da9b-6646-8aad178aecca.DP-0: 1920x1080 +9600+1080,GPU-716470f9-5bef-da9b-6646-8aad178aecca.DP-1: 1920x1080 +7680+1080,GPU-ff09f042-d3a6-726f-a9a8-41abf4b432f7.DP-2: 1920x1080 +5760+1080,GPU-ff09f042-d3a6-726f-a9a8-41abf4b432f7.DP-3: 1920x1080 +3840+1080,GPU-ff09f042-d3a6-726f-a9a8-41abf4b432f7.DP-0: 1920x1080 +1920+1080,GPU-ff09f042-d3a6-726f-a9a8-41abf4b432f7.DP-1: 1920x1080 +0+1080"
    Option         "MultiGPU" "on"
    Option         "SLI" "on"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
    Section "Extensions"
    Option "COMPOSITE" "Disable"
    Option "DPMS" "Disable"
EndSection

I would like to hear any type of opinion to try to solve this type of problem.
Thank you very much.

Last edited by machavesp (2022-09-12 12:27:37)