I fight with this setup now and again. I have 3 monitors plugged into my nvidia GPU and one into my intel motherboard. The monitor plugged into the motherboard has stopped displaying and cannot be selected in any nvidia or system settings. It used to show up in nvidia-settings GUI and say “PRIME”.
I’ve spent the last day trying various post I come across but I can never quite tell which posts are out of date and which make sense. My latest attempt was to try this optimus-manager thing but that really screwed up my system so I removed it.
I had it working with the video-hybrid-intel-nvidia-prime and video-modesetting installed. As far as I know I haven’t installed anything recently or changed any settings. The only thing I can conclude is that using nomachine to remote into the machine somehow screwed things up.
~ >>> inxi -SCGxx --no-host
System: Kernel: 5.11.22-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 Desktop: GNOME 3.38.4 tk: GTK 3.24.29
wm: gnome-shell dm: GDM Distro: Manjaro Linux base: Arch Linux
CPU: Info: Quad Core model: Intel Core i7-4790K bits: 64 type: MT MCP arch: Haswell rev: 3 cache: L2: 8 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 64030
Speed: 4400 MHz min/max: 800/4400 MHz Core speeds (MHz): 1: 4400 2: 4402 3: 4400 4: 4403 5: 4396 6: 4407 7: 4401
8: 4405
Graphics: Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics vendor: Micro-Star MSI driver: i915
v: kernel bus-ID: 00:02.0 chip-ID: 8086:0412
Device-2: NVIDIA GM204 [GeForce GTX 970] vendor: Micro-Star MSI driver: nvidia v: 465.31 bus-ID: 01:00.0
chip-ID: 10de:13c2
Display: x11 server: X.Org 1.20.11 compositor: gnome-shell driver: loaded: modesetting,nvidia resolution:
1: 1920x1080~60Hz 2: 1920x1080~60Hz 3: 1920x1080~60Hz s-dpi: 96
OpenGL: renderer: NVIDIA GeForce GTX 970/PCIe/SSE2 v: 4.6.0 NVIDIA 465.31 direct render: Yes
~ >>> xrandr
Screen 0: minimum 8 x 8, current 5760 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
1920x1080 60.00*+ 50.00
1680x1050 59.95
1600x1200 60.00
1440x900 74.98 59.89
1280x1024 75.02 60.02
1280x960 60.00
1280x800 59.81
1280x720 60.00 50.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 72.81 59.94
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 connected 1920x1080+3840+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+ 144.00 119.98 99.93 84.90 59.94 50.00
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x960 60.00
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-1 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+ 144.00 119.98 99.93 84.90
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x960 60.00
1280x800 59.81
1280x720 60.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
640x480 75.00 59.94
VGA-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
~ >>> mhwd -li -d
NAME: video-modesetting
ATTACHED: PCI
VERSION: 2020.01.13
INFO: X.org modesetting video driver.
PRIORITY: 1
FREEDRIVER: true
DEPENDS: -
CONFLICTS: -
CLASSIDS: 0300
VENDORIDS: *
NAME: video-hybrid-intel-nvidia-prime
ATTACHED: PCI
VERSION: 2020.11.30
INFO: Hybrid prime solution for NVIDIA Optimus Technology - Closed source NVIDIA driver & open source intel driver.
PRIORITY: 6
FREEDRIVER: false
DEPENDS: video-modesetting
CONFLICTS: video*nvidia*
CLASSIDS: 0300 0302 0300
VENDORIDS: 10de 8086