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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_REOPENED "
title="REOPENED - Two-finger scrolling jumpy with Synaptics touchpad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91135">bug 91135</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>benjamin.tissoires@gmail.com
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Two-finger scrolling jumpy with Synaptics touchpad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91135#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Two-finger scrolling jumpy with Synaptics touchpad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91135">bug 91135</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>This event here is the problem:
E: 1.469012 0003 0035 4220 # EV_ABS / ABS_MT_POSITION_X 4220
E: 1.469012 0003 0036 1777 # EV_ABS / ABS_MT_POSITION_Y 1777
E: 1.469012 0003 002f 0001 # EV_ABS / ABS_MT_SLOT 1
E: 1.469012 0003 0039 -001 # EV_ABS / ABS_MT_TRACKING_ID -1
E: 1.469012 0003 0000 4220 # EV_ABS / ABS_X 4220
E: 1.469012 0003 0001 1777 # EV_ABS / ABS_Y 1777
E: 1.469012 0003 001c 0004 # EV_ABS / ABS_TOOL_WIDTH 4
E: 1.469012 0001 0145 0001 # EV_KEY / BTN_TOOL_FINGER 1
E: 1.469012 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 1.469012 0000 0000 0000 # ------------ SYN_REPORT (0) ---------- +25ms
before this, slot 0 is on 3481/2721, slot 1 is on 4224/1777. In the event where
the slot 1 ends slot 0 jumps to slot 1 positions *for a single event*. In the
next event it is back to 3478/2702, i.e. the previous slot 0 position.
Benjamin, is this something we can detect in the kernel or do I need to work
around it? This is a semi-mt buttonpad.</pre>
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