Rescale between laptop built-in monitor and external hi-dpi monitor

rescale.sh

#!/bin/bash
# Ref: https://plumz.me/archives/10034/

xrandr --query  | grep ' connected' | grep 2560 > /dev/null
result=$?
 
if [ $result -ne 0 ]; then
    # HD
#   gsettings set org.gnome.nautilus.icon-view default-zoom-level standard
#   gsettings set org.gnome.desktop.interface cursor-size 24
    echo "Got"
    eval dconf write /org/cinnamon/desktop/interface/scaling-factor "'uint32 1'"
    eval dconf write /org/gnome/desktop/interface/scaling-factor "'uint32 1'"
    eval dconf write /org/cinnamon/active-display-scale "1"
    # Qt
    export QT_SCREEN_SCALE_FACTORS=1
    export QT_AUTO_SCREEN_SCALE_FACTOR=1
    pidof fcitx | xargs kill
    pidof nemo-desktop | xargs kill
    nohup fcitx  1>/dev/null 2>/dev/null &
    nohup nemo-desktop  1>/dev/null 2>/dev/null &
else
    # WQHD

    # For mint
    eval dconf write /org/cinnamon/desktop/interface/scaling-factor "'uint32 2'"
    eval dconf write /org/gnome/desktop/interface/scaling-factor "'uint32 2'"
    eval dconf write /org/cinnamon/active-display-scale "1.5"
    # Qt
    export QT_SCREEN_SCALE_FACTORS=1.5
    export QT_AUTO_SCREEN_SCALE_FACTOR=0
    pidof fcitx | xargs kill
    pidof nemo-desktop | xargs kill
    nohup fcitx  1>/dev/null 2>/dev/null &
    nohup nemo-desktop  1>/dev/null 2>/dev/null &
fi