Ubuntu going from 2560x1440 to 1920x1080 makes everything super blurry on a 17 inch laptop monitor

Solution 1:

When using some resolution different from the intrinsic one, there will be interpolation and the screen will be blurry or pixelated.

• There are ways to change the settings of the software, for example Firefox to increase the fonts etc so that you get a good user experience at the intrinsic (and high) resolution.

• In Ubuntu 20.04.x LTS you can also change the whole Gnome desktop settings for this purpose. Click at the top right corner and

  • select Settings
  • select Displays
  • Try with different Scale settings (you may activate fractional scaling)

• An alternative that might look good is half of the intrinsic resolution, in your case (2560x1440)/2 = 1280x720. This corresponds to Scale "200%" in Gnome's settings-display menu.