Elementary OS messed up resolution on logon screen

After connecting secondary monitor to my laptop the login screen looks like it lost display settings and got resolution changed. I was having trouble finding solution, following is what worked for me:


1. In terminal run xrandr -q to check monitor details.

Laptop display: LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 164mm

External monitor: VGA1 connected 1280x1024+1366+33 (normal left inverted right x axis y axis) 376mm x 301mm

2. Create script txt file eg. loginScreenFix.sh with following content:

#!/bin/sh
xrandr --output LVDS1 --primary --mode 1366x768

3. Make it executable with: chmod a+rx loginScreenFix.sh

Can run it to test if worked but resolution should be changed to see difference

4. Copy this to shared folder:

sudo cp loginScreenFix.sh /usr/share/

5. To run it on logon screen I updated lightdm config:

sudo gedit /etc/lightdm/lightdm.conf

Add my fix script path at the end:

display-fix-script=/usr/share/loginScreenFix.sh

6. Reboot to check if it worked.