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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Wobbly AlpsPS/2 ALPS DualPoint TouchPad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104828#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Wobbly AlpsPS/2 ALPS DualPoint TouchPad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104828">bug 104828</a>
from <span class="vcard"><a class="email" href="mailto:daniel.van.vugt@canonical.com" title="Daniel van Vugt <daniel.van.vugt@canonical.com>"> <span class="fn">Daniel van Vugt</span></a>
</span></b>
<pre>(In reply to Hi-Angel from <a href="show_bug.cgi?id=104828#c14">comment #14</a>)
<span class="quote">> libinput does have a detection code — otherwise how could it "remove"
> wobbling.</span >
I think that's wrong. It doesn't detect wobbling. It _assumes_ from the
beginning that the touchpad is wobbly and only turns off hysteresis later,
after deciding that it's not wobbling.
The wobble "removal" is the hysteresis algorithm, which is ON by default. The
bug here is that the stillness detection algorithm has gone wrong and turned
hysteresis OFF too early.</pre>
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