https://bugs.freedesktop.org/show_bug.cgi?id=106648
Bug ID: 106648
Summary: libinput trackpoint scrolling is too slow and ignores
LIBINPUT_ATTR_TRACKPOINT_RANGE
Product: Wayland
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: libinput
Assignee: [email protected]
Reporter: [email protected]
Created attachment 139757
--> https://bugs.freedesktop.org/attachment.cgi?id=139757&action=edit
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
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