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multi-GPU setup intel integrated GPU + external nVidia GPUs

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provider
Posts: 1
Joined: 2021-03-20 17:00
Location: Turkey

multi-GPU setup intel integrated GPU + external nVidia GPUs

#1 Post by provider »

Dear Debian users ... I just joined the forum. I apologize for opening a help topic without the opportunity to introduce myself. I look forward to your help on an issue I have been researching for days. Thank you from now.

I have 3 screens of the same brand and model on my desktop computer that I use at home. Previously, I could use these 3 screens on windows 10 in a healthy way. It can switch between screens with the mouse; I could move applications, programs, folders and files by dragging them between screens. I could even use 3 screens in outdoor environments where I was connected with the remote desktop.

I recently started using Debian 10 and I loved it. I tried researching how I can use 3 screens on Debian 10. I have tried different things from many foreign articles. (Even if I have to format 3156243165 times :D)

As a result, I activated the 3rd screen but I cannot switch with the mouse and it looks like a standalone computer. When I take a screenshot, it only takes screenshot of 2 screens.

My computer has Multi-Monitor iGPU capability and its settings are configured in BIOS.
NVIDIA drivers and xorg.conf file have been configured.

I specify my monitor layout for information.

1. Monitor NVIDIA VGA-0
2. Monitor NVIDIA HDMI-0
3. Monitor INTEL VGA ?

In this link https://gist.github.com/lucasbrynte/9b2 ... 44ae768667 I edited my xorg.con according to the settings I found.

Edited state of xorg.conf;

Code: Select all

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 418.56

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    Screen      1  "Screen1"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
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"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "intel"
    BusID          "PCI:0:2:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
In this way, the 3rd screen is active but looks like a separate desktop. Home, Garbage icons appear and the 3rd simulation with the mouse does not switch. However, in the second employee life, there are no Home, Garbage icons, only 1 must use, and you can switch between 1 and 2 with the mouse.

sudo xrandr output;

Code: Select all

Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 16384 x 16384
VGA-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 509mm x 286mm
   1920x1080     60.00*+
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00  
   1024x768      60.00  
   800x600       60.32  
   640x480       59.94  
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 509mm x 286mm
   1920x1080     60.00*+  59.94    50.00    50.00  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       59.94    59.93  
DVI-D-1 disconnected (normal left inverted right x axis y axis)

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