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AccelProfile

2025-02-17

Default mouse acceleration settings on X11 are anoying as hell, especially when you just launch your i3-wm and realize mouse movements are way off. On most DEs you can change it from within settings, but with a WM you're on your own.

ArchWiki article on this topic: https://wiki.archlinux.org/title/Mouse_acceleration

Quick fix: /etc/X11/xorg.conf.d/40-libinput.conf

Section "InputClass"
	Identifier "libinput pointer catchall"
	MatchIsPointer "on"
	MatchDevicePath "/dev/input/event*"
	Driver "libinput"
	Option "AccelProfile" "flat"
EndSection

The second fix is for touchpad tap to click. Whether I like to have it enabled depends on a device.

Section "InputClass"
	Identifier "libinput touchpad catchall"
	MatchIsTouchpad "on"
	MatchDevicePath "/dev/input/event*"
	Driver "libinput"
	Option "Tapping" "on"
EndSection

You're welcome.