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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Gestures vs scrolling on semi-mt touchpads"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91475#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Gestures vs scrolling on semi-mt touchpads"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91475">bug 91475</a>
              from <span class="vcard"><a class="email" href="mailto:jwrdegoede@fedoraproject.org" title="Hans de Goede <jwrdegoede@fedoraproject.org>"> <span class="fn">Hans de Goede</span></a>
</span></b>
        <pre>Hi,

Thanks for the recordings, the precision of the touchpad seems to be excellent
with both gestures.

Can you try changing these lines in libinput/src/evdev-mt-touchpad-gestures.c
(around line 200):

        /*
         * Semi-mt touchpads have somewhat inaccurate coordinates when
         * 2 fingers are down, so use a slightly larger threshold.
         */
        if (tp->semi_mt)
                move_threshold = TP_MM_TO_DPI_NORMALIZED(4);
        else
                move_threshold = TP_MM_TO_DPI_NORMALIZED(2);

To:

        move_threshold = TP_MM_TO_DPI_NORMALIZED(2);

Then re-build libinput, install the new version and see if that solves your 2fg
scrolling problems?

Regards,

Hans</pre>
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