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I'm using Linux Mint mate edition. I often connect an external monitor to my laptop by VGA. When the system boots up without VGA connected, I get login screen. After I type my password and continue, I get no display at all. I have to connect the external monitor to see what's happening. Ctrl +alt +f1 doesn't bring up any display. If I login with a different user, everything's fine. I tried deleting ~.config/monitors.xml and rebooting.

Now can anyone explain me how to get my laptop's main display back to work? It's really annoying. Without external monitor I'm completely blind.

I was following this post but couldn't find any solution. https://askubuntu.com/questions/148725/laptop-screen-blank-after-login-when-external-monitor-is-not-connected

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The monitor settings might be in .xinitrc, try deleting/moving that file and see if it works, also you don't need to reboot running pkill X or systemctl restart lightdm will restart the X server.

If that does not work try running mv ~/.config/dconf ~/dconf.bak and mv ~/.config/mate ~/mate.bak, this should reset mate's configuration, I'm pretty sure this the only place left where the monitor configuration could be

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  • Where can i find .xinitrc ? Commented Aug 18, 2017 at 14:13
  • It's in your home directory, you can just run mv .xinitrc .xinitrc.bak.
    – Matt
    Commented Aug 18, 2017 at 14:19
  • mv: cannot stat '.xinitrc': No such file or directory Commented Aug 18, 2017 at 14:26
  • Looks like you don't have a .xinitc so that isn't the problem, try connecting the external monitor and running xrandr -q to get a list of monitors and xrandr --output (the laptop's monitor) --auto, the internal monitor will probably be called LVDS1.
    – Matt
    Commented Aug 18, 2017 at 14:29
  • Tried it. No display on my laptop screen. My laptop display is called eDP. xrandr output shows 2 devices VGA-0 and eDP Commented Aug 18, 2017 at 14:34

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