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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 - Can't manage acceleration profile on HP 255 G5 "SynPS/2 Synaptics TouchPad""
href="https://bugs.freedesktop.org/show_bug.cgi?id=99695">bug 99695</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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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 - Can't manage acceleration profile on HP 255 G5 "SynPS/2 Synaptics TouchPad""
href="https://bugs.freedesktop.org/show_bug.cgi?id=99695#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Can't manage acceleration profile on HP 255 G5 "SynPS/2 Synaptics TouchPad""
href="https://bugs.freedesktop.org/show_bug.cgi?id=99695">bug 99695</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>grab this branch here:
<a href="https://github.com/whot/libinput/tree/wip/touchpad-accel-debug-output">https://github.com/whot/libinput/tree/wip/touchpad-accel-debug-output</a>
build it:
<a href="https://wayland.freedesktop.org/libinput/doc/latest/building_libinput.html">https://wayland.freedesktop.org/libinput/doc/latest/building_libinput.html</a>
then run sudo ./tools/event-debug --verbose
Move your finger on the touchpad and look at the "touch movement" message
whenever you lift a finger. What acceleration factor do you usually get?
Note that this sums up the deltas, so stick to straight lines to make it
mentally easier to map to the distance traveled.
Also make sure that the mm distance is correct, just in case.</pre>
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