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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 - double-click and drag to highlight sentences doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99402">bug 99402</a>
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<th>What</th>
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<th>Added</th>
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<td>benjamin.tissoires@gmail.com
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - double-click and drag to highlight sentences doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99402#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - double-click and drag to highlight sentences doesn't work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99402">bug 99402</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>Summary from the event recordings:
* while a finger is already down, BTN_LEFT events are normal
* while no finger is down, a BTN_LEFT creates a touch at 0/0 and releases that
touch on release
* a fake touch created by BTN_LEFT will jump to the coordinates of the finger
when a finger is set down after the button event. the button release will not
affect the touch
One more case we need to know please: what happens on finger down, button down,
finger up, button up?
The good news here: this is detectable and can be worked around with a
device-specific quirk. The bad news is that the code for this is going to be
nasty.
Benjamin, is this something we can fix in the kernel instead?</pre>
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