This short document describes how to change the HiDPI setting so that everything works fine. The following sections describe how to make certain components use the desired DPI. The rest of components (dunst, kitty, etc.) should automatically pick up the new DPI defined by xrandr and .Xresources.
Symlink ~/.local/bin/current-randr.sh to either ~/.dotfiles/bin/hidalgo-randr-hidpi.sh or ~/.dotfiles/hidalgo-randr-fhd.sh.
Symlink ~/.Xresources to either ~/.dotfiles/X/.Xresources-hidpi or ~/.dotfiles/X/.Xresources.
Look up the file ~/.dotfiles/polybar/launch.sh and change the code within the "if" block pertaining to "hidalgo". You can choose the bars bar-hidpi and bar-hidpi-slave for HiDPI setups, and bar-fhd and bar-fhd-slave for 1080p setups.
Symlink ~/.Xdefaults to either ~/.dotfiles/X/.Xdefaults-hidpi or ~/.dotfiles/X/.Xdefaults.
Go to about:config and set layout.css.devPixelsPerPx to whatever value (1.8, 2.0, etc).
In Thunderbird, it is also recommended to increase the font size.
- Set the VM property
-Dsun.java2d.uiScale=2 - Set the gnome setting
$ gsettings set org.gnome.desktop.interface scaling-factor 2