11-20-2019, 07:08 PM
I encountered a similar problem. I changed my resolution to 1024 x 768, but I jsut selected 'Apply', I did not apply system wide. This resulted in a blank screen that persisted after a reboot.
By using the console (Ctrl-Alt-F1) and entering
xrandr -d :0 -q
I got the current settings and the other available settings
1920x1080 59.99+
1024x768 60.32*
(Thanks to this post for getting me to that stage: https://askubuntu.com/questions/281509/how-do-i-change-the-screen-resolution-using-ubuntu-command-line)
I was able to return things to a working state editing:
~/.config/monitors.xml
The lines to change were
<width>1920</width>
<height>1080</width>
<rate>59.99</rate>
By using the console (Ctrl-Alt-F1) and entering
xrandr -d :0 -q
I got the current settings and the other available settings
1920x1080 59.99+
1024x768 60.32*
(Thanks to this post for getting me to that stage: https://askubuntu.com/questions/281509/how-do-i-change-the-screen-resolution-using-ubuntu-command-line)
I was able to return things to a working state editing:
~/.config/monitors.xml
The lines to change were
<width>1920</width>
<height>1080</width>
<rate>59.99</rate>
