Ubuntu Resources

Potentially Helpful tips for Ubuntu 18.04

Changing screen resolution

Note SDH monitors have a resolution of 2560x1440

For SDH computers:

cvt 2560 1440 60

Copy the text starting from double quotes to the end.

Run the following command with the copied text:

sudo xrandr --addmode "2560x1440_60.00"  312.25  2560 2752 3024 3488  1440 1443 1448 1493 -hsync +vsync

sudo aAdd the newly created mode:

sudo xrandr --addmode Virtual1 "2560x1440_60.00"

You can now set that display resolution in settings.

To keep this screen resolution permanent, edit .profile file.

Run the command:

vim ~/.profile

Then append this to the end of the file:

sudo xrandr --newmode  "2560x1440_60.00"  312.25  2560 2752 3024 3488  1440 1443 1448 1493 -hsync +vsync
sudo xrandr --addmode Virtual1 "2560x1440_60.00"