Help needed configuring Ubuntu 16.04 and Nvidia NVS 450 for 3 display

Graphics / Linux Linux
1

Hi,

I am having trouble configuring my Ubuntu 16.04 machine with a NVIDIA NVS 450 graphics card.

As soon as I enable BaseMosaic mode in my xorg.conf file the system starts freezing upon reboot and is extremely unresponsive.

The only way to resolve this is to drop to the terminal (CTRL+ALT+F1) and either edit or remove the conf file and reboot.

Everything works fine for two displays, its only when I try to get all three going the problems start.

All is fine in Windows 10 - except that its windows.

I am using the NVIDIA binary driver version 340.102.

Any help/advice greatly received or am I flogging a dead horse. I know the card is old but I’m not looking to play games and I’m hesitant to purchase say an NVS 510 in case of similar issues.

Many thanks, Lee

2

Please run nvidia-bug-report.sh and attach output to your post.
Did you follow the guide at:
[url]How to configure MOSAIC on Linux | NVIDIA

3

Hi,

Thanks for your reply.

I did follow the guide that you mentioned.

I have attached the bug report and a copy of my xorg.conf.

http://www.loonatic.com/nvidia-bug-report.log.gz

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 381.22  (buildd@lgw01-19)  Tue May  9 21:38:53 UTC 2017

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "DELL 2407WFP"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro NVS 450"
    BusID          "PCI:4:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "GPU-9c009c35-ce20-7c17-f85d-a92780a70cfd.GPU-0.DP-0: nvidia-auto-select +1280+0, GPU-9c009c35-ce20-7c17-f85d-a92780a70cfd.GPU-0.DP-1: nvidia-auto-select +3200+0, GPU-ca4cc24a-ea51-7930-03ee-da6f5a8fdcfd.GPU-1.DP-0: nvidia-auto-select +0+0"
    Option         "MultiGPU" "Off"
    Option         "SLI" "off"
    Option         "BaseMosaic" "on"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Many thanks, Lee

4

All logs are looking good, the xserver is set up right using all 3 monitors, no driver woes in dmesg. So it’s more likely that the wm i.e. unity is not getting it right.
Better replace

Option         "nvidiaXineramaInfoOrder" "DFP-0"

with

Option         "nvidiaXineramaInfo" "FALSE"

Seeing anything specific in journal (journalctl -e)?