LinuxQuestions.org - [SOLVED] Xinerama = all black screens on login

- Bodhi (https://www.linuxquestions.org/questions/bodhi-92/)

- - Xinerama = all black screens on login (https://www.linuxquestions.org/questions/bodhi-92/xinerama-%3D-all-black-screens-on-login-4175649466/)

Xinerama = all black screens on login

So I am running on Bodhi 4.5, I have run into a odd issue. I have 6 identical monitors set up on a GTX 750 ti and a GTX 1050 while I can have both screens up on 2 xscreens. Works great other than when I enable Xinerama and restart lightdm everything comes up on black screens.

Does anyone have any ideas?

My xorg.conf

Code:

# nvidia-settings: X configuration file generated by nvidia-settings

# nvidia-settings:  version 418.43





Section "ServerLayout"

    Identifier    "Layout0"

    Screen      0  "Screen0" 0 1080

    Screen      1  "Screen1" 0 0

    InputDevice    "Keyboard0" "CoreKeyboard"

    InputDevice    "Mouse0" "CorePointer"

    Option        "Xinerama" "0"

EndSection



Section "Files"

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      "ViewSonic VA2431 Series"

    HorizSync      24.0 - 82.0

    VertRefresh    50.0 - 75.0

    Option        "DPMS"

EndSection



Section "Monitor"

    Identifier    "Monitor1"

    VendorName    "Unknown"

    ModelName      "ViewSonic VA2431 Series"

    HorizSync      24.0 - 82.0

    VertRefresh    50.0 - 75.0

EndSection



Section "Device"

    Identifier    "Device0"

    Driver        "nvidia"

    VendorName    "NVIDIA Corporation"

    BoardName      "GeForce GTX 750 Ti"

    BusID          "PCI:1:0:0"

EndSection



Section "Device"

    Identifier    "Device1"

    Driver        "nvidia"

    VendorName    "NVIDIA Corporation"

    BoardName      "GeForce GTX 1050"

    BusID          "PCI:2:0:0"

EndSection



Section "Screen"

    Identifier    "Screen0"

    Device        "Device0"

    Monitor        "Monitor0"

    DefaultDepth    24

    Option        "Stereo" "0"

    Option        "nvidiaXineramaInfoOrder" "CRT-0"

    Option        "metamodes" "DVI-D-0: nvidia-auto-select +0+0, DVI-D-1: nvidia-auto-select +3840+0, VGA-0: nvidia-auto-select +1920+0"

    Option        "SLI" "Off"

    Option        "MultiGPU" "Off"

    Option        "BaseMosaic" "off"

    SubSection    "Display"

        Depth      24

    EndSubSection

EndSection



Section "Screen"



# Removed Option "metamodes" "DVI-D-0: nvidia-auto-select +0+0 {AllowGSYNC=Off}, HDMI-0: nvidia-auto-select +1920+0, DP-1: nvidia-auto-select +3840+0"

    Identifier    "Screen1"

    Device        "Device1"

    Monitor        "Monitor1"

    DefaultDepth    24

    Option        "Stereo" "0"

    Option        "nvidiaXineramaInfoOrder" "DFP-0"

    Option        "metamodes" "DVI-D-0: nvidia-auto-select +0+0 {rotation=invert, AllowGSYNC=Off}, HDMI-0: nvidia-auto-select +1920+0 {rotation=invert}, DP-1: nvidia-auto-select +3840+0 {rotation=invert}"

    Option        "SLI" "Off"

    Option        "MultiGPU" "Off"

    Option        "BaseMosaic" "off"

    SubSection    "Display"

        Depth      24

    EndSubSection

EndSection



Section "Extensions"

    Option        "Composite" "Disable"

EndSection

var/log/Xorg.0.log

After lots of digging and googling after I found the Nvidia logs. They need to be the same GPU and it cant be two different ones. I have ordered another one and will report back with my findings.

https://devtalk.nvidia.com/default/t...t-match-quot-/

Code:

[  843.282] (**) NVIDIA(0): Option "MetaModes" "DVI-D-0: nvidia-auto-select +0+0, DVI-D-1: nvidia-auto-select +3840+0, VGA-0: nvidia-auto-select +1920+0"

[  843.282] (**) NVIDIA(0): Enabling 2D acceleration

[  844.734] (WW) NVIDIA(GPU-0): Both the "MultiGPU" and "SLI" X configuration options were

[  844.734] (WW) NVIDIA(GPU-0):    specified.  The "SLI" option will take precedence.  Please

[  844.734] (WW) NVIDIA(GPU-0):    see Chapter 28: Configuring SLI and Multi-GPU

[  844.734] (WW) NVIDIA(GPU-0):    FrameRendering for more information.

[  844.734] (EE) NVIDIA(GPU-0): Failed to find a valid Base Mosaic configuration.

[  844.734] (EE) NVIDIA(GPU-0): Invalid Base Mosaic configuration 1 of 1:

[  844.734] (EE) NVIDIA(GPU-0): GPUs:

[  844.734] (EE) NVIDIA(GPU-0):    1) NVIDIA GPU at PCI:1:0:0

[  844.734] (EE) NVIDIA(GPU-0):    2) NVIDIA GPU at PCI:2:0:0

[  844.734] (EE) NVIDIA(GPU-0): Errors:

[  844.734] (EE) NVIDIA(GPU-0):    - The video link was not detected

[  844.734] (EE) NVIDIA(GPU-0):    - Unsupported GPU

[  844.734] (EE) NVIDIA(GPU-0):    - Chipset not approved for SLI

[  844.734] (EE) NVIDIA(GPU-0):    - GPU PCI IDs do not match

[  844.734] (WW) NVIDIA(GPU-0): Failed to find a valid Base Mosaic configuration for the

[  844.734] (WW) NVIDIA(GPU-0):    NVIDIA graphics device PCI:1:0:0. Please see Chapter 28:

[  844.734] (WW) NVIDIA(GPU-0):    Configuring SLI and Multi-GPU FrameRendering in the README

[  844.734] (WW) NVIDIA(GPU-0):    for troubleshooting suggestions.

All six screens working now that I have 2 of the same video card