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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>
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<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Thinkpad X240 touchpad movement is jumpy and extremely imprecise"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106141">bug 106141</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td>aduggan@synaptics.com
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Thinkpad X240 touchpad movement is jumpy and extremely imprecise"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106141#c24">Comment # 24</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Thinkpad X240 touchpad movement is jumpy and extremely imprecise"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106141">bug 106141</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>Right, guess it doesn't provide any visible benefits then. fwiw, in the test
data the first event is smaller so the jumps should be less. But whether you're
getting a 10px jump or a 5px jump doesn't matter and is not really visible.
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Acceleration still too fast with slow and slow-medium finger movements"
href="show_bug.cgi?id=101139">Bug 101139</a> may help a bit because it changes the acceleration curve. But that
too only gets rid of the jumps, not of the sawtooth pattern, I'm not sure what
to do about those.
Andrew, can you please have a look at the data from <a href="show_bug.cgi?id=106141#c8">comment 8</a>? we're seeing a
distinct sawtooth pattern in the data, see <a href="show_bug.cgi?id=106141#c16">comment 16</a> for the deltas per event.
Rather than diagonal it goes e.g. 5 events up, then 5 events right. I have no
idea how to filter that out, it goes across multiple events with difficult
patterns. Does it look/sound familiar?</pre>
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