[Wayland-bugs] [Bug 101300] (EE) event7 - (EE) SynPS/2 Synaptics TouchPad: (EE) kernel bug: Touch jump detected and discarded.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101300

Peter Hutterer <peter.hutterer at who-t.net> changed:

           What    |Removed                     |Added
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                 CC|                            |peter.hutterer at who-t.net

--- Comment #1 from Peter Hutterer <peter.hutterer at who-t.net> ---
Bad news here, the jump isn't really detectable. so I think you'll have to live
with the warnings in the log. 

In your evemu output, this one is the one that causes the jump:
  E: 3.805534 0003 0035 2627      # EV_ABS / ABS_MT_POSITION_X    2627
  E: 3.805534 0003 0036 4463      # EV_ABS / ABS_MT_POSITION_Y    4463
  E: 3.805534 0003 003a 0066      # EV_ABS / ABS_MT_PRESSURE      66
  E: 3.805534 0003 0000 2627      # EV_ABS / ABS_X                2627
  E: 3.805534 0003 0001 4463      # EV_ABS / ABS_Y                4463
  E: 3.805534 0003 0018 0066      # EV_ABS / ABS_PRESSURE         66
  E: 3.805534 0000 0000 0000      # ------------ SYN_REPORT (0) ----------
+14ms

This is 3 events after one at 4330/2314. The only possible indication about the
jump is the presence of three pressure-only events, but I'm not sure that's
reliable enough. Unless there are other side-effects, living with the warning
in the log is the simplest solution here.

Please do attach the output of the touchpad-edge-detector though, this device
doesn't have axis ranges set so we need to override it.

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