HiDPI on Linux

hi-dpi still is a handfull on linux.. gnome 3 supports it quite well for now, but it is far from perfect.

i recently ran a do-release-upgrade on my ubuntu gnome and it switched to some insane scaling factor showing only a quarter of my desktop on my screen.

i had a hard time to get my whole terminal window into sight again because the mouse was disaligned.

in the end i managed to open a new terminal window hitting ctrl + shift + n

i then entered this command to scale to a level where i could see the entire destkop again:

gsettings set org.gnome.desktop.interface scaling-factor 1

here is another interesting one:

gsettings set org.gnome.settings-daemon.plugins.xsettings overrides "{ 'Gdk/WindowScalingFactor':<2>, 'Gdk/UnscaledDPI':<92160> }"

and here's one to change the windows frame text size:

gsettings set org.gnome.desktop.interface text-scaling-factor 1.5

Here's an example of the configuration i am currently using on my lenovo x1 carbon notebook:

psuter@psnote:~$ gsettings get org.gnome.desktop.interface scaling-factor
uint32 2
psuter@psnote:~$ gsettings get org.gnome.settings-daemon.plugins.xsettings overrides
{'Gdk/WindowScalingFactor': <2>}
psuter@psnote:~$ gsettings get org.gnome.desktop.interface text-scaling-factor
0.75

and in Firefox i have

layout.css.devPixelsPerPx=1.5