Manifesting in every kernel post 5.0, stable
and testing
.
psmouse.synaptics_intertouch=1
appears to have been retired for a better approach, however never making a difference in previous Arch-based installations where it proved beneficial (i.e. incredibly responsive touchpad).
The cursor becomes “stuck” for 1 second or less, then back to normal. Occurs dozens of times per minute, every minute. It will drive me clinically mad, someone please help me troubleshoot.
Xorg log says:
[ 17237.147] (EE) event16 - Synaptics TM3276-031: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.14.1/touchpad-jumping-cursors.html for details
[ 17239.363] (EE) event16 - Synaptics TM3276-031: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.14.1/touchpad-jumping-cursors.html for details
So hunting I go:
$ xinput --list
Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Synaptics TM3276-031 id=20 [slave pointer (2)]
My touchpad is correctly identified, no duplicate entries either.
Confirmed by dmesg
[ 8.985391] rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: Synaptics, product: TM3276-031
[ 9.047552] input: Synaptics TM3276-031 as /devices/rmi4-00/input/input18
Every since Kernel 5.2 last year’s touchpads are (finally) properly handled. This lonesome bug is everything that remains.
There’s this other bug having to do with incorrect touchpad dimensions, but that’s another story.