how can I set up my screen, so it wouldn't look so oversized? i've got 15" screen with 1366x768 resolution, but now all the icons, header bar, wingpanel are looking big. is there a way to set all of it to 75% size? I know Windows10 has got something similar
open terminal and execute:
In the output look for the name of your primary monitor, for me:
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 290mm x 170mm
so its eDPI!
now again in terminal:
xrandr --output eDPI --scale 1.25x1.25
put your Device name where eDPI is for me. You can experiment with the scaling factor. 1x1 is normal, 1.5x1.5 is 50% as big.
If you like what you see you can add the command that suits you to Startup-Applications (system-settings->applications->the right tab).