0

I have in my Ubuntu 18.04 system:

  • Intel HD Graphics 4600
  • nVidia GEFORCE GTX1650

Both of them have a monitor attached.

By default, the nVidia driver drives both monitors. Why?

I tried to explicitly set the screens and devices in /etc/xorg.conf as such:

#
#   DEVICES
#

Section "Device"
    Identifier  "HD4600"
    BusID       "PCI:0:2:0"
        #Option          "HDMI-1-2" "Left Monitor"
EndSection


Section "Device"
        Identifier      "GTX1650"
        BusID           "PCI:1:0:0"
        #Option          "DVI-D-O" "Right Monitor"
        #Option          "Monitor-VGA-0" "Left Monitor"
        #Option          "Monitor-DVI-0" "Right Monitor"
EndSection


#
#   MONITORS
#


Section "Monitor"
        Identifier      "Left Monitor"
EndSection


Section "Monitor"
        Identifier      "Right Monitor"
        Option          "Right Of" "Left Monitor"
EndSection

#
#   SCREENS
#

Section "Screen"
        Identifier      "INTEL Screen"
        Device          "HD4600"
    Monitor     "Left Monitor"
        DefaultDepth    24
        SubSection "Display"
            Depth           24
            #Virtual         3840 1200
        EndSubSection
EndSection


Section "Screen"
        Identifier      "NVIDIA Screen"
        Device          "GTX1650"
    Monitor     "Right Monitor"
        DefaultDepth    24
        SubSection "Display"
            Depth           24
            #Virtual         3840 1200
        EndSubSection
EndSection

#
#   SERVER
#

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "INTEL Screen"
        Screen          "NVIDIA Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
EndSection

So the good news is that:

  • If I comment out the INTEL Screen, my NVIDIA Screen will work.
  • If I comment out the NVIDIA Screen, my INTEL Screen will work.
  • If I leave both screens in the ServerLayout, only the INTEL Screen will come up.
[312286.944] 
X.Org X Server 1.19.6
Release Date: 2017-12-20
[312286.975] X Protocol Version 11, Revision 0
[312286.985] Build Operating System: Linux 4.4.0-148-generic x86_64 Ubuntu
[312286.996] Current Operating System: Linux ubuntupc 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64
[312286.996] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-76-generic root=UUID=8836c5a0-10de-4bb5-8c8c-b1976277b71c ro enable-mtrr-cleanup mtrr-spare-reg-nr=1 mtrr-gran-size=64M mtrr-chunk-size=128M modprobe.blacklist=nouveau
[312287.022] Build Date: 03 June 2019  08:10:35AM
[312287.036] xorg-server 2:1.19.6-1ubuntu4.3 (For technical support please see http://www.ubuntu.com/support) 
[312287.050] Current version of pixman: 0.34.0
[312287.080]    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[312287.080] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[312287.142] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Feb  8 09:28:30 2020
[312287.158] (==) Using config file: "/etc/xorg.conf"
[312287.175] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[312287.175] (==) ServerLayout "Default Layout"
[312287.175] (**) |-->Screen "NVIDIA Screen" (0)
[312287.175] (**) |   |-->Monitor "Right Monitor"
[312287.175] (**) |   |-->Device "GTX1650"
[312287.175] (**) |   |-->GPUDevice "GTX1650"
[312287.175] (**) |-->Input Device "Generic Keyboard"
[312287.175] (**) |-->Input Device "Configured Mouse"
[312287.175] (==) Automatically adding devices
[312287.175] (==) Automatically enabling devices
[312287.175] (==) Automatically adding GPU devices
[312287.175] (==) Automatically binding GPU devices
[312287.175] (==) Max clients allowed: 256, resource mask: 0x1fffff
[312287.175] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[312287.175]    Entry deleted from font path.
[312287.175] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[312287.175]    Entry deleted from font path.
[312287.175] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[312287.175]    Entry deleted from font path.
[312287.175] (==) FontPath set to:
    /usr/share/fonts/X11/misc,
    /usr/share/fonts/X11/100dpi/:unscaled,
    /usr/share/fonts/X11/Type1,
    /usr/share/fonts/X11/100dpi,
    built-ins
[312287.175] (==) ModulePath set to "/usr/lib/xorg/modules"
[312287.175] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[312287.175] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[312287.175] (WW) Disabling Generic Keyboard
[312287.175] (WW) Disabling Configured Mouse
[312287.175] (II) Loader magic: 0x5600ecdaf020
[312287.175] (II) Module ABI versions:
[312287.175]    X.Org ANSI C Emulation: 0.4
[312287.175]    X.Org Video Driver: 23.0
[312287.175]    X.Org XInput driver : 24.1
[312287.175]    X.Org Server Extension : 10.0
[312287.176] (++) using VT number 2

[312287.178] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_3107
[312287.178] (II) xfree86: Adding drm device (/dev/dri/card1)
[312287.179] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 11 paused 0
[312287.179] (II) xfree86: Adding drm device (/dev/dri/card0)
[312287.179] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 12 paused 0
[312287.180] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules"
[312287.180] (**) OutputClass "Nvidia Prime" ModulePath extended to "/x86_64-linux-gnu/nvidia/xorg,/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules"
[312287.180] (**) OutputClass "Nvidia Prime" setting /dev/dri/card1 as PrimaryGPU
[312287.181] (--) PCI: (0:0:2:0) 8086:0412:1043:8534 rev 6, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[312287.181] (--) PCI:*(0:1:0:0) 10de:1f82:19da:1546 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[312287.181] (II) LoadModule: "glx"
[312287.181] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[312287.182] (II) Module glx: vendor="X.Org Foundation"
[312287.182]    compiled for 1.19.6, module version = 1.0.0
[312287.182]    ABI class: X.Org Server Extension, version 10.0
[312287.182] (II) Applying OutputClass "nvidia" to /dev/dri/card1
[312287.182]    loading driver: nvidia
[312287.182] (II) Applying OutputClass "Nvidia Prime" to /dev/dri/card1
[312287.182]    loading driver: nvidia
[312287.182] (==) Matched nvidia as autoconfigured driver 0
[312287.182] (==) Matched nvidia as autoconfigured driver 1
[312287.182] (==) Matched nouveau as autoconfigured driver 2
[312287.182] (==) Matched nouveau as autoconfigured driver 3
[312287.182] (==) Matched modesetting as autoconfigured driver 4
[312287.182] (==) Matched fbdev as autoconfigured driver 5
[312287.182] (==) Matched vesa as autoconfigured driver 6
[312287.182] (==) Assigned the driver to the xf86ConfigLayout
[312287.182] (II) LoadModule: "nvidia"
[312287.182] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/nvidia_drv.so
[312287.182] (II) Module nvidia: vendor="NVIDIA Corporation"
[312287.182]    compiled for 1.6.99.901, module version = 1.0.0
[312287.182]    Module class: X.Org Video Driver
[312287.182] (II) NVIDIA dlloader X Driver  440.48.02  Tue Jan 14 06:20:35 UTC 2020
[312287.182] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[312287.182] (II) systemd-logind: releasing fd for 226:1
[312287.182] (II) Loading sub module "fb"
[312287.182] (II) LoadModule: "fb"
[312287.182] (II) Loading /usr/lib/xorg/modules/libfb.so
[312287.182] (II) Module fb: vendor="X.Org Foundation"
[312287.182]    compiled for 1.19.6, module version = 1.0.0
[312287.182]    ABI class: X.Org ANSI C Emulation, version 0.4
[312287.182] (II) Loading sub module "wfb"
[312287.182] (II) LoadModule: "wfb"
[312287.183] (II) Loading /usr/lib/xorg/modules/libwfb.so
[312287.183] (II) Module wfb: vendor="X.Org Foundation"
[312287.183]    compiled for 1.19.6, module version = 1.0.0
[312287.183]    ABI class: X.Org ANSI C Emulation, version 0.4
[312287.183] (II) Loading sub module "ramdac"
[312287.183] (II) LoadModule: "ramdac"
[312287.183] (II) Module "ramdac" already built-in
[312287.183] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[312287.183] (==) NVIDIA(0): RGB weight 888
[312287.183] (==) NVIDIA(0): Default visual is TrueColor
[312287.183] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[312287.183] (II) Applying OutputClass "nvidia" options to /dev/dri/card1
[312287.183] (II) Applying OutputClass "Nvidia Prime" options to /dev/dri/card1
[312287.183] (**) NVIDIA(0): Option "AllowEmptyInitialConfiguration"
[312287.183] (**) NVIDIA(0): Option "IgnoreDisplayDevices" "CRT"
[312287.183] (**) NVIDIA(0): Enabling 2D acceleration
[312287.183] (II) Loading sub module "glxserver_nvidia"
[312287.183] (II) LoadModule: "glxserver_nvidia"
[312287.183] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/libglxserver_nvidia.so
[312287.188] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[312287.188]    compiled for 1.6.99.901, module version = 1.0.0
[312287.188]    Module class: X.Org Server Extension
[312287.188] (II) NVIDIA GLX Module  440.48.02  Tue Jan 14 06:17:29 UTC 2020
[312287.188] (II) NVIDIA: The X server does not support PRIME Render Offload.
[312287.690] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
[312287.690] (--) NVIDIA(0):     DFP-0 (boot)
[312287.690] (--) NVIDIA(0):     DFP-1
[312287.690] (--) NVIDIA(0):     DFP-2
[312287.690] (--) NVIDIA(0):     DFP-3
[312287.691] (II) NVIDIA(0): NVIDIA GPU GeForce GTX 1650 (TU117-A) at PCI:1:0:0 (GPU-0)
[312287.691] (--) NVIDIA(0): Memory: 4194304 kBytes
[312287.691] (--) NVIDIA(0): VideoBIOS: 90.17.1c.00.a4
[312287.691] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[312287.706] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): connected
[312287.706] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): Internal TMDS
[312287.706] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): 330.0 MHz maximum pixel clock
[312287.706] (--) NVIDIA(GPU-0): 
[312287.706] (--) NVIDIA(GPU-0): DFP-1: disconnected
[312287.706] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[312287.706] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[312287.706] (--) NVIDIA(GPU-0): 
[312287.706] (--) NVIDIA(GPU-0): DFP-2: disconnected
[312287.706] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[312287.706] (--) NVIDIA(GPU-0): DFP-2: 2660.0 MHz maximum pixel clock
[312287.706] (--) NVIDIA(GPU-0): 
[312287.706] (--) NVIDIA(GPU-0): DFP-3: disconnected
[312287.706] (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
[312287.706] (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
[312287.706] (--) NVIDIA(GPU-0): 
[312287.732] (==) NVIDIA(0): 
[312287.732] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[312287.732] (==) NVIDIA(0):     will be used as the requested mode.
[312287.732] (==) NVIDIA(0): 
[312287.733] (II) NVIDIA(0): Validated MetaModes:
[312287.733] (II) NVIDIA(0):     "DFP-0:nvidia-auto-select"
[312287.733] (II) NVIDIA(0): Virtual screen size determined to be 2560 x 1600
[312287.765] (--) NVIDIA(0): DPI set to (101, 101); computed from "UseEdidDpi" X config
[312287.765] (--) NVIDIA(0):     option
[312287.765] (--) Depth 24 pixmap format is 32 bpp
[312287.766] (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
[312287.766] (II) NVIDIA:     access.
[312287.785] (II) NVIDIA(0): Setting mode "DFP-0:nvidia-auto-select"
[312287.816] (==) NVIDIA(0): Disabling shared memory pixmaps
[312287.816] (==) NVIDIA(0): Backing store enabled
[312287.816] (==) NVIDIA(0): Silken mouse enabled
[312287.816] (==) NVIDIA(0): DPMS enabled
[312287.816] (WW) NVIDIA(0): Option "PrimaryGPU" is not used
[312287.816] (WW) NVIDIA(0): Option "Right Of" is not used
[312287.816] (II) Loading sub module "dri2"
[312287.816] (II) LoadModule: "dri2"
[312287.816] (II) Module "dri2" already built-in
[312287.816] (II) NVIDIA(0): [DRI2] Setup complete
[312287.816] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
[312287.816] (--) RandR disabled
[312287.818] (II) SELinux: Disabled on system
[312287.818] (II) Initializing extension GLX
[312287.818] (II) Indirect GLX disabled.
[312287.850] (II) config/udev: Adding input device Power Button (/dev/input/event1)
[312287.850] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[312287.850] (II) LoadModule: "libinput"
[312287.851] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so
[312287.852] (II) Module libinput: vendor="X.Org Foundation"
[312287.852]    compiled for 1.19.6, module version = 0.27.1
[312287.852]    Module class: X.Org XInput Driver
[312287.852]    ABI class: X.Org XInput driver, version 24.1
[312287.852] (II) Using input driver 'libinput' for 'Power Button'
[312287.852] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 40 paused 0
[312287.852] (**) Power Button: always reports core events
[312287.852] (**) Option "Device" "/dev/input/event1"
[312287.852] (**) Option "_source" "server/udev"
[312287.853] (II) event1  - Power Button: is tagged by udev as: Keyboard
[312287.853] (II) event1  - Power Button: device is a keyboard
[312287.853] (II) event1  - Power Button: device removed
[312287.853] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1"
[312287.853] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[312287.853] (**) Option "xkb_model" "pc105"
[312287.853] (**) Option "xkb_layout" "us"
[312287.853] (II) event1  - Power Button: is tagged by udev as: Keyboard
[312287.853] (II) event1  - Power Button: device is a keyboard
[312287.853] (II) config/udev: Adding input device Video Bus (/dev/input/event5)
[312287.853] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[312287.853] (II) Using input driver 'libinput' for 'Video Bus'
[312287.854] (II) systemd-logind: got fd for /dev/input/event5 13:69 fd 43 paused 0
[312287.854] (**) Video Bus: always reports core events
[312287.854] (**) Option "Device" "/dev/input/event5"
[312287.854] (**) Option "_source" "server/udev"
[312287.854] (II) event5  - Video Bus: is tagged by udev as: Keyboard
[312287.854] (II) event5  - Video Bus: device is a keyboard
[312287.854] (II) event5  - Video Bus: device removed
[312287.854] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input5/event5"
[312287.854] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 7)
[312287.854] (**) Option "xkb_model" "pc105"
[312287.854] (**) Option "xkb_layout" "us"
[312287.855] (II) event5  - Video Bus: is tagged by udev as: Keyboard
[312287.855] (II) event5  - Video Bus: device is a keyboard
[312287.855] (II) config/udev: Adding input device Power Button (/dev/input/event0)
[312287.855] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[312287.855] (II) Using input driver 'libinput' for 'Power Button'
[312287.855] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 44 paused 0
[312287.855] (**) Power Button: always reports core events
[312287.855] (**) Option "Device" "/dev/input/event0"
[312287.855] (**) Option "_source" "server/udev"
[312287.856] (II) event0  - Power Button: is tagged by udev as: Keyboard
[312287.856] (II) event0  - Power Button: device is a keyboard
[312287.856] (II) event0  - Power Button: device removed
[312287.856] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0/event0"
[312287.856] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 8)
[312287.856] (**) Option "xkb_model" "pc105"
[312287.856] (**) Option "xkb_layout" "us"
[312287.856] (II) event0  - Power Button: is tagged by udev as: Keyboard
[312287.856] (II) event0  - Power Button: device is a keyboard
[312287.856] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event18)
[312287.856] (II) No input driver specified, ignoring this device.
[312287.856] (II) This device may have been added with another device file.
[312287.857] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event19)
[312287.857] (II) No input driver specified, ignoring this device.
[312287.857] (II) This device may have been added with another device file.
[312287.857] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event20)
[312287.857] (II) No input driver specified, ignoring this device.
[312287.857] (II) This device may have been added with another device file.
[312287.857] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event21)
[312287.857] (II) No input driver specified, ignoring this device.
[312287.857] (II) This device may have been added with another device file.
[312287.857] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3 (/dev/input/event12)
[312287.857] (II) No input driver specified, ignoring this device.
[312287.857] (II) This device may have been added with another device file.
[312287.858] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7 (/dev/input/event13)
[312287.858] (II) No input driver specified, ignoring this device.
[312287.858] (II) This device may have been added with another device file.
[312287.858] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8 (/dev/input/event14)
[312287.858] (II) No input driver specified, ignoring this device.
[312287.858] (II) This device may have been added with another device file.
[312287.858] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=9 (/dev/input/event15)
[312287.858] (II) No input driver specified, ignoring this device.
[312287.858] (II) This device may have been added with another device file.
[312287.858] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=10 (/dev/input/event16)
[312287.858] (II) No input driver specified, ignoring this device.
[312287.858] (II) This device may have been added with another device file.
[312287.859] (II) config/udev: Adding input device UVC Camera (046d:09a6) (/dev/input/event6)
[312287.859] (**) UVC Camera (046d:09a6): Applying InputClass "libinput keyboard catchall"
[312287.859] (II) Using input driver 'libinput' for 'UVC Camera (046d:09a6)'
[312287.859] (II) systemd-logind: got fd for /dev/input/event6 13:70 fd 45 paused 0
[312287.859] (**) UVC Camera (046d:09a6): always reports core events
[312287.859] (**) Option "Device" "/dev/input/event6"
[312287.859] (**) Option "_source" "server/udev"
[312287.859] (II) event6  - UVC Camera (046d:09a6): is tagged by udev as: Keyboard
[312287.859] (II) event6  - UVC Camera (046d:09a6): device is a keyboard
[312287.859] (II) event6  - UVC Camera (046d:09a6): device removed
[312287.859] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-10/3-10:1.0/input/input6/event6"
[312287.859] (II) XINPUT: Adding extended input device "UVC Camera (046d:09a6)" (type: KEYBOARD, id 9)
[312287.859] (**) Option "xkb_model" "pc105"
[312287.859] (**) Option "xkb_layout" "us"
[312287.860] (II) event6  - UVC Camera (046d:09a6): is tagged by udev as: Keyboard
[312287.860] (II) event6  - UVC Camera (046d:09a6): device is a keyboard
[312287.860] (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/event2)
[312287.860] (**) Logitech USB-PS/2 Optical Mouse: Applying InputClass "libinput pointer catchall"
[312287.860] (II) Using input driver 'libinput' for 'Logitech USB-PS/2 Optical Mouse'
[312287.920] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 46 paused 0
[312287.920] (**) Logitech USB-PS/2 Optical Mouse: always reports core events
[312287.920] (**) Option "Device" "/dev/input/event2"
[312287.920] (**) Option "_source" "server/udev"
[312287.920] (II) event2  - Logitech USB-PS/2 Optical Mouse: is tagged by udev as: Mouse
[312287.920] (II) event2  - Logitech USB-PS/2 Optical Mouse: device is a pointer
[312287.920] (II) event2  - Logitech USB-PS/2 Optical Mouse: device removed
[312287.920] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2.1/3-4.2.1:1.0/0003:046D:C03F.000D/input/input31/event2"
[312287.920] (II) XINPUT: Adding extended input device "Logitech USB-PS/2 Optical Mouse" (type: MOUSE, id 10)
[312287.921] (**) Option "AccelerationScheme" "none"
[312287.921] (**) Logitech USB-PS/2 Optical Mouse: (accel) selected scheme none/0
[312287.921] (**) Logitech USB-PS/2 Optical Mouse: (accel) acceleration factor: 2.000
[312287.921] (**) Logitech USB-PS/2 Optical Mouse: (accel) acceleration threshold: 4
[312287.921] (II) event2  - Logitech USB-PS/2 Optical Mouse: is tagged by udev as: Mouse
[312287.921] (II) event2  - Logitech USB-PS/2 Optical Mouse: device is a pointer
[312287.922] (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/mouse0)
[312287.922] (II) No input driver specified, ignoring this device.
[312287.922] (II) This device may have been added with another device file.
[312287.923] (II) config/udev: Adding input device SN TECH    USBGamingMouse (/dev/input/event3)
[312287.923] (**) SN TECH    USBGamingMouse: Applying InputClass "libinput keyboard catchall"
[312287.923] (II) Using input driver 'libinput' for 'SN TECH    USBGamingMouse'
[312287.924] (II) systemd-logind: got fd for /dev/input/event3 13:67 fd 47 paused 0
[312287.924] (**) SN TECH    USBGamingMouse: always reports core events
[312287.924] (**) Option "Device" "/dev/input/event3"
[312287.924] (**) Option "_source" "server/udev"
[312287.925] (II) event3  - SN TECH    USBGamingMouse: is tagged by udev as: Keyboard
[312287.925] (II) event3  - SN TECH    USBGamingMouse: device is a keyboard
[312287.925] (II) event3  - SN TECH    USBGamingMouse: device removed
[312287.925] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2.3/3-4.2.3:1.0/0003:258A:0013.000B/input/input29/event3"
[312287.925] (II) XINPUT: Adding extended input device "SN TECH    USBGamingMouse" (type: KEYBOARD, id 11)
[312287.925] (**) Option "xkb_model" "pc105"
[312287.925] (**) Option "xkb_layout" "us"
[312287.926] (II) event3  - SN TECH    USBGamingMouse: is tagged by udev as: Keyboard
[312287.926] (II) event3  - SN TECH    USBGamingMouse: device is a keyboard
[312287.927] (II) config/udev: Adding input device SN TECH    USBGamingMouse (/dev/input/event4)
[312287.927] (**) SN TECH    USBGamingMouse: Applying InputClass "libinput pointer catchall"
[312287.927] (**) SN TECH    USBGamingMouse: Applying InputClass "libinput keyboard catchall"
[312287.927] (II) Using input driver 'libinput' for 'SN TECH    USBGamingMouse'
[312287.928] (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 48 paused 0
[312287.928] (**) SN TECH    USBGamingMouse: always reports core events
[312287.928] (**) Option "Device" "/dev/input/event4"
[312287.928] (**) Option "_source" "server/udev"
[312287.929] (II) event4  - SN TECH    USBGamingMouse: is tagged by udev as: Keyboard Mouse
[312287.929] (II) event4  - SN TECH    USBGamingMouse: device is a pointer
[312287.929] (II) event4  - SN TECH    USBGamingMouse: device is a keyboard
[312287.929] (II) event4  - SN TECH    USBGamingMouse: device removed
[312287.929] (II) libinput: SN TECH    USBGamingMouse: needs a virtual subdevice
[312287.929] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2.3/3-4.2.3:1.1/0003:258A:0013.000C/input/input30/event4"
[312287.929] (II) XINPUT: Adding extended input device "SN TECH    USBGamingMouse" (type: MOUSE, id 12)
[312287.929] (**) Option "AccelerationScheme" "none"
[312287.929] (**) SN TECH    USBGamingMouse: (accel) selected scheme none/0
[312287.929] (**) SN TECH    USBGamingMouse: (accel) acceleration factor: 2.000
[312287.930] (**) SN TECH    USBGamingMouse: (accel) acceleration threshold: 4
[312287.930] (II) event4  - SN TECH    USBGamingMouse: is tagged by udev as: Keyboard Mouse
[312287.930] (II) event4  - SN TECH    USBGamingMouse: device is a pointer
[312287.930] (II) event4  - SN TECH    USBGamingMouse: device is a keyboard
[312287.931] (II) config/udev: Adding input device SN TECH    USBGamingMouse (/dev/input/mouse1)
[312287.932] (II) No input driver specified, ignoring this device.
[312287.932] (II) This device may have been added with another device file.
[312287.932] (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event10)
[312287.932] (II) No input driver specified, ignoring this device.
[312287.932] (II) This device may have been added with another device file.
[312287.932] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event11)
[312287.932] (II) No input driver specified, ignoring this device.
[312287.932] (II) This device may have been added with another device file.
[312287.933] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event7)
[312287.933] (II) No input driver specified, ignoring this device.
[312287.933] (II) This device may have been added with another device file.
[312287.933] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event8)
[312287.933] (II) No input driver specified, ignoring this device.
[312287.933] (II) This device may have been added with another device file.
[312287.934] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event9)
[312287.934] (II) No input driver specified, ignoring this device.
[312287.934] (II) This device may have been added with another device file.
[312287.934] (II) config/udev: Adding input device Eee PC WMI hotkeys (/dev/input/event17)
[312287.934] (**) Eee PC WMI hotkeys: Applying InputClass "libinput keyboard catchall"
[312287.934] (II) Using input driver 'libinput' for 'Eee PC WMI hotkeys'
[312287.935] (II) systemd-logind: got fd for /dev/input/event17 13:81 fd 49 paused 0
[312287.935] (**) Eee PC WMI hotkeys: always reports core events
[312287.935] (**) Option "Device" "/dev/input/event17"
[312287.935] (**) Option "_source" "server/udev"
[312287.935] (II) event17 - Eee PC WMI hotkeys: is tagged by udev as: Keyboard
[312287.935] (II) event17 - Eee PC WMI hotkeys: device is a keyboard
[312287.935] (II) event17 - Eee PC WMI hotkeys: device removed
[312287.935] (**) Option "config_info" "udev:/sys/devices/platform/eeepc-wmi/input/input17/event17"
[312287.935] (II) XINPUT: Adding extended input device "Eee PC WMI hotkeys" (type: KEYBOARD, id 13)
[312287.935] (**) Option "xkb_model" "pc105"
[312287.935] (**) Option "xkb_layout" "us"
[312287.935] (II) event17 - Eee PC WMI hotkeys: is tagged by udev as: Keyboard
[312287.935] (II) event17 - Eee PC WMI hotkeys: device is a keyboard
[312287.939] (**) SN TECH    USBGamingMouse: Applying InputClass "libinput pointer catchall"
[312287.939] (**) SN TECH    USBGamingMouse: Applying InputClass "libinput keyboard catchall"
[312287.939] (II) Using input driver 'libinput' for 'SN TECH    USBGamingMouse'
[312287.939] (II) systemd-logind: returning pre-existing fd for /dev/input/event4 13:68
[312287.939] (**) SN TECH    USBGamingMouse: always reports core events
[312287.939] (**) Option "Device" "/dev/input/event4"
[312287.939] (**) Option "_source" "_driver/libinput"
[312287.939] (II) libinput: SN TECH    USBGamingMouse: is a virtual subdevice
[312287.939] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2.3/3-4.2.3:1.1/0003:258A:0013.000C/input/input30/event4"
[312287.939] (II) XINPUT: Adding extended input device "SN TECH    USBGamingMouse" (type: KEYBOARD, id 14)
[312287.939] (**) Option "xkb_model" "pc105"
[312287.939] (**) Option "xkb_layout" "us"
[312288.226] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): connected
[312288.226] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): Internal TMDS
[312288.226] (--) NVIDIA(GPU-0): DELL U3011 (DFP-0): 330.0 MHz maximum pixel clock
[312288.226] (--) NVIDIA(GPU-0): 
[312288.226] (--) NVIDIA(GPU-0): DFP-1: disconnected
[312288.226] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[312288.226] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[312288.226] (--) NVIDIA(GPU-0): 
[312288.226] (--) NVIDIA(GPU-0): DFP-2: disconnected
[312288.226] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[312288.226] (--) NVIDIA(GPU-0): DFP-2: 2660.0 MHz maximum pixel clock
[312288.226] (--) NVIDIA(GPU-0): 
[312288.226] (--) NVIDIA(GPU-0): DFP-3: disconnected
[312288.226] (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
[312288.226] (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
[312288.226] (--) NVIDIA(GPU-0): 

Why can't I get both INTEL and NVIDIA devices work simulateously in a single XServer?

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