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  • RHEL 7.4 - How to disable LVDS display output?

    Posted on

    How does the GUI, Xorg windows get configured in RHEL7?

    My system has an unconnected LVDS display output, but X windows still tries to output to it.

    The following article covers as far as RHEL6:

    https://access.redhat.com/solutions/227273

    $ xrandr
    Screen 0: minimum 320 x 200, current 5760 x 1440, maximum 8192 x 8192
    eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 510mm x 286mm
       1920x1080     60.16*+
       1400x1050     59.98  
       1280x1024     60.02  
       1280x960      60.00  
       1024x768      60.04    60.00  
       960x720       60.00  
       928x696       60.05  
       896x672       60.01  
       800x600       60.00    60.32    56.25  
       700x525       59.98  
       640x512       60.02  
       640x480       60.00    59.94  
       512x384       60.00  
       400x300       60.32    56.34  
       320x240       60.05  
    VGA-1 disconnected (normal left inverted right x axis y axis)
    DP-1 disconnected (normal left inverted right x axis y axis)
    HDMI-1 connected 1280x1024+1920+0 (normal left inverted right x axis y axis) 338mm x 270mm
       1280x1024     60.02*+  75.02  
       1152x864      75.00  
       1024x768      75.03    70.07    60.00  
       832x624       74.55  
       800x600       72.19    75.00    60.32  
       640x480       75.00    72.81    59.94  
       720x400       70.08  
    DP-2 connected 2560x1440+3200+0 (normal left inverted right x axis y axis) 597mm x 336mm
       2560x1440     59.95*+
       1920x1080     60.00    50.00    59.94  
       1920x1080i    60.00    50.00    59.94  
       1680x1050     59.95  
       1280x1024     75.02    60.02  
       1440x900      59.89  
       1280x960      60.00  
       1280x720      60.00    50.00    59.94  
       1024x768      75.03    70.07    60.00  
       832x624       74.55  
       800x600       72.19    75.00    60.32    56.25  
       720x576       50.00  
       720x480       60.00    59.94  
       640x480       75.00    72.81    66.67    60.00    59.94  
       720x400       70.08  
    HDMI-2 disconnected (normal left inverted right x axis y axis)
    

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