Upstream bug: https://bugzilla.redhat.com/show_bug.cgi?id=1413306 Unfortunately the bug report instructs to try a "scratch build" from Koji, but I didn't find a commit or patch, so I masked the newer versions and downgraded. /etc/portage/package.mask/libinput: >=dev-libs/libinput-1.5.0 >=x11-drivers/xf86-input-libinput-0.20.0 I'm not asking to keyword the newer versions again, as they do seem to fix "it is unusable for me" for many other cases, just keep the old versions around until this is fixed upstream. This is what I currently have installed: dev-libs/libinput-1.4.2 x11-drivers/xf86-input-libinput-0.19.0
Looks like the latest instructions are https://bugzilla.redhat.com/show_bug.cgi?id=1413306#c38 but I have no idea how to figure out what patch that contains...
I asked on IRC, and whot told me that the code is available in https://github.com/whot/libinput/tree/wip/touchpad-scaling-udev Can you please give it a try?