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joasis

Member

Registered: 2018-02-27

Posts: 14

ETPS/2 Elantech Touchpad: kernel bug: Touch jump detected and discard

Hey everyone,

Recently, I've been experiencing severe issues with my ETPS/2 Elantech Touchpad. They include unresponsive and a jumpy cursor.

Jun 28 10:41:01 juozas-laptop libinput-gestures.desktop[1456]: libinput error: event15 - ETPS/2 Elantech Touchpad: kernel bug: Touch jump detected and discarded.
Jun 28 10:41:01 juozas-laptop libinput-gestures.desktop[1456]: See https://wayland.freedesktop.org/libinput/doc/1.13.3/touchpad-jumping-cursors.html for details
Jun 28 10:41:01 juozas-laptop /usr/lib/gdm-x-session[1158]: (EE) event15 - ETPS/2 Elantech Touchpad: kernel bug: Touch jump detected and discarded.
Jun 28 10:41:01 juozas-laptop /usr/lib/gdm-x-session[1158]: See https://wayland.freedesktop.org/libinput/doc/1.13.3/touchpad-jumping-cursors.html for details

I: Bus=0011 Vendor=0002 Product=000e Version=0000
N: Name="ETPS/2 Elantech Touchpad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input20
U: Uniq=
H: Handlers=event15 mouse2 
B: PROP=5
B: EV=b
B: KEY=e420 10000 0 0 0 0
B: ABS=661800011000003

5.1.15-arch1-1-ARCH
GNOME Shell 3.32.2

The touchpad may work without any problems for a while and then become unresponsive or jumpy all of the sudden.

Has anyone experienced similar issues?

Thanks

agaskins

Member

Registered: 2012-04-17

Posts: 6

Re: ETPS/2 Elantech Touchpad: kernel bug: Touch jump detected and discard

I have this same issue. I'm seeing the error from bumblebee though, oddly enough.

Bumblebee status: Error (3.2.1): [XORG] (EE) event16 - DELL07EC:00 06CB:7E92 Touchpad: kernel bug: Touch jump detected and discarded.

I'm just starting my journey in to troubleshooting this issue, so I have nothing to add except to confirm that it's an issue. I'm using a Dell Inspiron 15 7573. I'm only seeing this issue when the Nvidia GM108M card is active (using bumblebee and proprietary driver), not yet observed while using the Intel UHD 620 integraded graphics.

Did you ever track down anything on this issue @joasis? I'll return if I figure out more. Good luck!