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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_ASSIGNED "
title="ASSIGNED - 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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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Thinkpad X240 touchpad movement is jumpy and extremely imprecise"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106141#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - 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>deltas on a per-event basis:
0.544368: ↙← -2/ 1 | *********** |
0.554709: ↙↓ -2/ 18 | *********** |
0.564084: ↙↓ -2/ 18 | *********** |
0.574229: ↙← -21/ 18 | *********** |
0.584444: ↙↓ -2/ 18 | *********** |
0.595000: ↙↓ -4/ 18 | *********** |
0.604237: ↙← -22/ 18 | *********** |
0.624738: ↙↓ -4/ 18 | *********** |
0.635189: ↙↓ -4/ 18 | *********** |
0.644283: ↙← -22/ 18 | *********** |
0.654523: ↙↓ -1/ 18 | *********** |
0.664768: ↙↓ -2/ 18 | *********** |
0.675160: ↙← -24/ 18 | *********** |
0.685256: ↙↓ -2/ 18 | *********** |
0.695281: ↙← -24/ 18 | *********** |
0.709745: ↙↓ -2/ 18 | *********** |
0.725301: ↙← -28/ 18 | *********** |
0.735631: ↙↓ -2/ 18 | *********** |
0.744848: ↙↓ -2/ 18 | *********** |
0.755461: ↙← -25/ 18 | *********** |
0.765650: ↙↓ -4/ 18 | *********** |
0.776020: ↙← -27/ 18 | *********** |
1.166998: ↖↑ -1/ -2 | *********** |
1.177127: ↖↑ -1/ -2 | *********** |
1.187562: ↖↑ -2/ -19 | *********** |
1.197899: ↖↑ -2/ -19 | *********** |
1.208095: ↖← -20/ -19 | *********** |
1.218402: ↖← -20/ -2 | *********** |
1.227577: ↖← -2/ -2 | *********** |
1.237896: ↖↑ -1/ -2 | *********** |
1.248211: ↖← -2/ -2 | *********** |
1.951817: ↑↗ 1/ -1 | *********** |
1.962119: ↑↗ 1/ -1 | *********** |
1.972333: ↑↗ 1/ -1 | *********** |
1.982479: ↑↗ 1/ -1 | *********** |
1.991914: →↗ 19/ -1 | *********** |
2.012382: →↗ 19/ -2 | *********** |
2.022765: →↗ 19/ -1 | *********** |
2.033004: ↑↗ 1/ -1 | *********** |
2.042179: ↑↗ 1/ -17 | *********** |
So yeah, this is very much garbage coming out of the device. No idea why this
is supposed to work fine with synaptics though, I don't think it does any
smoothing over what we do already in libinput.</pre>
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