Score:0

Lubuntu 20.04 keeps trying to use two monitors even if a secondary monitor is unplugged, settings reset after reboot

cn flag

Problem details

I used to use a second monitor ages ago, but I do not use it anymore. I never want again to use a second monitor.

The second phantom non-existing unplugged monitor is used by default to extend my screen. This causes problems on boot. Sometimes I can not see a lock screen, sometimes my system hangs with a black screen.

What I need

  1. Remove the second phantom non-existing unplugged monitor settings.
  2. Make changes to be persistent.

What I tried

Saving "Monitor Settings" not working. After reboot I see a phantom unplugged monitor as "enabled" again extending my screen to nowhere.

System

  • Lubuntu 20.04
  • Notebook Samsung RC528

phantom unplugged monitor

Score:0
cn flag

It looks like following the Disabling phantom monitor documentation removed a phantom monitor from settings.

Commands I executed:

xrandr --output VGA1-1-2 --off

As a second step, I created a file /etc/X11/xorg.conf.d/10-monitor.conf:

Section "Monitor"
    Identifier "VGA1-1-2"
    Option "Ignore" "true"
EndSection
andrew.46 avatar
in flag
Could you please add some details to your answer that demonstrate the specific steps you tool to resolve the issue? Link only answers are not encouraged on AU...
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