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geeb

Member

Registered: 2022-11-08

Posts: 1

[CLOSED]KDE triple monitor display issue - displayport

I have been running two 4k monitors , one via usb-c, the other via hdmi. Both work properly. Today I added another 4k monitor via displayport, the monitor powers on but there is no display even after enabling the monitor and configuring the display within the KDE display manager. The output of xrandr -q confirms that the monitor is connected. My GPU is a NVIDIA GeForce RTX 2080 SUPER/PCIe/SSE2. Below is the output of xrandr -q. The connection in question is DP-4.
Thanks in advance for any help you can provide

$ xrandr -q
Screen 0: minimum 8 x 8, current 7680 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 3840x2160+3840+0 (normal left inverted right x axis y axis) 600mm x 340mm
   3840x2160     60.00 +  59.94    50.00    30.00*   29.97    25.00    23.98  
   2560x1440     59.95  
   1920x1080     60.00    60.00    59.94    29.97    23.98  
   1600x900      60.00  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00    59.94  
   1152x864      60.00  
   1024x768      60.00  
   800x600       60.32  
   720x480       59.94  
   640x480       59.94    59.93  
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected 3840x2160+0+0 (normal left inverted right x axis y axis) 620mm x 350mm
   3840x2160     60.00*+  29.97    25.00    23.98  
   2560x1440     59.95  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1366x768      59.79  
   1280x1024     60.02  
   1280x720      60.00    59.94    50.00  
   1152x864      59.96  
   1024x768      60.00  
   832x624       59.82  
   800x600       60.32    56.25  
   640x480       59.94  
DP-5 disconnected (normal left inverted right x axis y axis)
USB-C-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm
   3840x2160     60.00*+  59.94    50.00    29.98    29.97  
   2560x1440     59.95  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       59.94    59.93 

Last edited by geeb (2023-07-26 13:08:42)