Actually I'm using 2 Monitors on the Nvidia GPU and would like to use a third on the Intel GPU, because I got no suitable port left on the Nvidia GPU. I just thought this title would be easier to find for others.
inxi -Fx
System: Kernel: 5.4.52-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.1.0 Desktop: KDE Plasma 5.19.3
Distro: Manjaro Linux
...
Graphics: Device-1: Intel HD Graphics 630 vendor: Gigabyte driver: i915 v: kernel bus ID: 00:02.0
Device-2: NVIDIA GP104 [GeForce GTX 1080] vendor: Micro-Star MSI driver: nvidia v: 440.100 bus ID: 01:00.0
Display: x11 server: X.Org 1.20.8 driver: nvidia resolution: 1920x1200~60Hz
OpenGL: renderer: GeForce GTX 1080/PCIe/SSE2 v: 4.6.0 NVIDIA 440.100 direct render: Yes
...
xrandr
Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1920x1200+1920+0 (normal left inverted right x axis y axis) 582mm x 364mm
1920x1200 59.95*+
1920x1080 60.00 59.94 60.05 60.00
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x480 59.94
640x480 75.00 59.94 59.93
DP-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00 + 144.00* 119.98 99.93 59.94 50.00
1680x1050 59.88
1440x900 59.90
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1024x768 119.99 99.97 75.03 70.07 60.00
800x600 119.97 99.66 75.00 72.19 60.32 56.25
720x576 50.00
720x480 59.94
640x480 119.52 99.77 75.00 72.81 59.94 59.93
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
So, as you can see, the hardware seems to be detected correctly, but it is not set-up correctly with X11. I tried to add a file
cat /etc/X11/xorg.conf.d/40-onboard-gfx.conf
Section "Device"
Identifier "Onboard"
Driver "intel"
Option "AccelMethod" "uxa"
# Option "TearFree" "true"
BusID "PCI:0:2:0"
EndSection
But that did not seem to help. Unfortunately, I just don't seem to find the correct keywords to search for. Therefore, any clues are highly appreciated. Thank you.