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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 - Pointer doesn't move on rare occasions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93948">bug 93948</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>
<td>benjamin.tissoires@gmail.com, peter.hutterer@who-t.net
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>NEEDINFO
</td>
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Pointer doesn't move on rare occasions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93948#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Pointer doesn't move on rare occasions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93948">bug 93948</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>E: 30.993357 0003 0039 0667 # EV_ABS / ABS_MT_TRACKING_ID 667
E: 30.993357 0003 0035 1202 # EV_ABS / ABS_MT_POSITION_X 1202
E: 30.993357 0003 0036 0530 # EV_ABS / ABS_MT_POSITION_Y 530
E: 30.993357 0001 014a 0001 # EV_KEY / BTN_TOUCH 1
E: 30.993357 0001 0145 0001 # EV_KEY / BTN_TOOL_FINGER 1
E: 30.993357 0003 0000 1202 # EV_ABS / ABS_X 1202
E: 30.993357 0003 0001 0530 # EV_ABS / ABS_Y 530
E: 30.993357 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
+27108ms
That's a finger down in the right bottom corner. The next event is 33 seconds
later:
E: 63.629946 0003 0035 0722 # EV_ABS / ABS_MT_POSITION_X 722
E: 63.629946 0003 0036 0263 # EV_ABS / ABS_MT_POSITION_Y 263
E: 63.629946 0003 0000 0722 # EV_ABS / ABS_X 722
E: 63.629946 0003 0001 0263 # EV_ABS / ABS_Y 263
E: 63.629946 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
+32636ms
So what appears to happen is that that touch was detected as a palm
(correctly). Since it doesn't trigger any of the palm release requirements
(e.g. moving out of the palm zones), it is treated like a palm even when it
starts moving around on the touchpad. This looks like either buggy hardware or
some kernel tracking issue. We could put additional triggers in to prevent this
in libinput, but this is the first time I've seen something like that. Can you
verify this is what's happening every time you see the issue?</pre>
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