[Wayland-bugs] [Bug 99447] Tap timeout seems too low

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99447

--- Comment #15 from Mantas Mikulėnas <grawity at gmail.com> ---
Created attachment 129222
  --> https://bugs.freedesktop.org/attachment.cgi?id=129222&action=edit
elantech tapspeed plot [MM]

(In reply to Peter Hutterer from comment #14)
> (In reply to Mantas Mikulėnas from comment #12)
> > Ran this on both of my laptops, not entirely sure how to interpret it but on
> > the synaptics laptop it seems to match the awk results: everything seems to
> > be concentrated around 73/83/94/104/115 ms.
> 
> the points are the tap times grouped by ms, so in your case you have e.g. 9
> taps counted at (what I think is) 60ms. the vert lines are the mean, 50
> percentile, 90 and 95 percentile. So 90% of your taps come in at 104ms which
> is above the current limit of 100ms. That would mean that you have a bit
> over 10% detection failure.

Right, and this might be caused by hardware (similar to that other bug report
by an XPS user) – for comparison, on my other laptop (with an old Elantech
touchpad) the 95% line is around ~70ms and everything is much more evenly
spread out.

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