Arch Linux

felixculpa

Member

From: Alberta, Canada

Registered: 2012-06-12

Posts: 270

[SOLVED] Second monitor isn't detected

I have a dual monitor setup. The main one is connected via displayport and the second on the right is rotated vertically and is connected via hdmi. Both are plugged into a Nvidia graphics card. Nvidia settings gui show both but polybar and xrandr doesn't detect the rotated monitor. Something probably incorrectly set in my xorg file? I can mouse onto it but I can't move any windows onto it, which is very strange (using BSPWM, if that matters). Dual monitor setup was working before but something got messed up after I rotated it or I am misunderstanding something in the new config file.

xorg.conf file:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 465.31

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 465.31

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" 1920 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"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "BenQ GW2480"
    HorizSync       30.0 - 83.0
    VertRefresh     50.0 - 76.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "BenQ GW2480"
    HorizSync       30.0 - 83.0
    VertRefresh     50.0 - 76.0
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "NVIDIA GeForce GTX 1050"
    BusID          "PCI:1:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "NVIDIA GeForce GTX 1050"
    BusID          "PCI:1:0:0"
    Screen          1
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-2"
    Option         "metamodes" "DP-0: 1920x1080_60 +0+0 {AllowGSYNC=Off}"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"

# Removed Option "metamodes" "HDMI-0: 1920x1080_60 +0+0 {rotation=left, AllowGSYNC=Off}"
# Removed Option "metamodes" "HDMI-0: 1920x1080_60 +0+0 {rotation=right, AllowGSYNC=Off}"
# Removed Option "metamodes" "HDMI-0: 1920x1080_60 +0+0 {rotation=left, AllowGSYNC=Off}"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-1"
    Option         "metamodes" "HDMI-0: 1920x1080_60 +1920+0 {rotation=right, reflection=XY, AllowGSYNC=Off}"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Last edited by felixculpa (2021-07-06 04:07:24)

felixculpa

Member

From: Alberta, Canada

Registered: 2012-06-12

Posts: 270

Re: [SOLVED] Second monitor isn't detected

I deleted my xorg config and set a fresh one once logged in. This fixed the main issues. Turns out I had both monitors set on different "screens" when it should have been one "screen." However now I face a different problem. The mouse cursor is way bigger than normal and the font size at least in dmenu is much larger than normal?

jpacs

Member

Registered: 2022-05-26

Posts: 1

Re: [SOLVED] Second monitor isn't detected

Try creating a ~/.Xresources file with this on it "Xcursor.size: 16".

Hope it helps.