libinput trackpoint scrolling is too slow
Submitted by Chow Loong Jin
Assigned to Wayland bug list
Created attachment 139757 Patch to use accelerated deltas for scrolling
This is a followup from https://bugs.freedesktop.org/show_bug.cgi?id=106506#c12:
Scrolling on my trackpoint (Lite-On Technology Corp. Thinkpad USB Keyboard with TrackPoint, with usb-id: 17ef:6009) is too slow and does not take LIBINPUT_ATTR_TRACKPOINT_RANGE into consideration, leading to a jarring mismatch in scrolling vs movement speed.
A solution I've found to have worked for me in Chrome Beta and Evince is to use accelerated deltas for scrolling.
Here are the versions of the packages I'm using in Ubuntu.
google-chrome-beta: Installed: 67.0.3396.48-1 Candidate: 67.0.3396.48-1 Version table: *** 67.0.3396.48-1 500 500 http://dl.google.com/linux/chrome/deb stable/main amd64 Packages 100 /var/lib/dpkg/status libgtk-3-0: Installed: 3.22.30-1ubuntu1 Candidate: 3.22.30-1ubuntu1 Version table: *** 3.22.30-1ubuntu1 500 500 http://sg.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status evince: Installed: 3.28.2-1 Candidate: 3.28.2-1 Version table: *** 3.28.2-1 500 500 http://sg.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status
Patch 139757, "Patch to use accelerated deltas for scrolling":