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<body><span class="vcard"><a class="email" href="mailto:peter.hutterer@who-t.net" title="Peter Hutterer <peter.hutterer@who-t.net>"> <span class="fn">Peter Hutterer</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Touchpad hysteresis doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104788">bug 104788</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">CC</td>
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<td>peter.hutterer@who-t.net
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<td style="text-align:right;">Depends on</td>
<td>
</td>
<td>98839
</td>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Touchpad hysteresis doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104788#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Touchpad hysteresis doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104788">bug 104788</a>
from <span class="vcard"><a class="email" href="mailto:peter.hutterer@who-t.net" title="Peter Hutterer <peter.hutterer@who-t.net>"> <span class="fn">Peter Hutterer</span></a>
</span></b>
<pre>libinput looks at the touchpad motion and if the finger is down for some time
without motion events (i.e. without wobbles) the motion hysteresis is disabled.
See <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Somehow conditionalize hysteresis (hardware black/whitelist, device property introspection, user-exposed setting, etc)"
href="show_bug.cgi?id=98839">bug 98839</a>.
This would explain why it works after login and then starts wobbling later -
likely after the hysteresis was disabled. Once disabled, it stays disabled
until you log out/restart.
You can easily verify this with sudo libinput debug-events --verbose, pipe it
into a file and check for a hysteresis disabled message once it starts
wobbling.
To debug this further though I'll need an evemu record that triggers this
because the one you attached doesn't seem to disable the hysteresis.</pre>
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<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Somehow conditionalize hysteresis (hardware black/whitelist, device property introspection, user-exposed setting, etc)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98839">Bug 98839</a>] Somehow conditionalize hysteresis (hardware black/whitelist, device property introspection, user-exposed setting, etc)
</li>
</ul>
</div>
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