My second monitor is not showing up in the display settings using an RTX 3090 nVidia GPU, see the first screenshot, I am using Ubuntu 20.04.
I have tried using all of the drivers shown in the screenshot below,
Running xrandr I see:
xrandr
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
HDMI-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 2560x1440 143.86*+ 119.88 99.90 59.95 2560x1080 59.94 1920x1080 120.00 119.88 100.00 100.00 60.00 59.94 50.00 29.97 25.00 23.98 1440x900 59.89 1440x576 50.00 1440x480 59.94 1366x768 59.79 1280x1024 75.02 60.02 1280x720 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 72.81 59.94
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)Running dmseg piping to a reg expression check for nvidia I get: dmesg | grep nvidia
[ 7.515909] nvidia: loading out-of-tree module taints kernel.
[ 7.515915] nvidia: module license 'NVIDIA' taints kernel.
[ 7.558852] nvidia-nvlink: Nvlink Core is being initialized, major device number 508
[ 7.559561] nvidia 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
[ 7.617777] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 510.47.03 Mon Jan 24 22:51:43 UTC 2022
[ 7.632317] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 8.903911] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 0
[ 9.087932] nvidia_uvm: module uses symbols from proprietary module nvidia, inheriting taint.
[ 9.110820] nvidia-uvm: Loaded the UVM driver, major device number 506.
[ 9.419891] audit: type=1400 audit(1646695235.248:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=1007 comm="apparmor_parser"
[ 9.419894] audit: type=1400 audit(1646695235.248:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=1007 comm="apparmor_parser"
[ 746.910272] [drm:nv_drm_connector_get_modes [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to get mode at modeIndex 1 of NvKmsKapiDisplay 0x00000100
[ 747.758802] [drm:nv_drm_connector_get_modes [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to get mode at modeIndex 12 of NvKmsKapiDisplay 0x00000200The second monitor is connected by display port and has 4K resolution. Any insights on what to try next much appreciated, I'd be happy to give more information.
3 Reset to default