Input: alps - fix finger jumps on lifting 2 fingers on v7 touchpad
On v7 touchpads sometimes when 2 fingers are moved down on the touchpad until they "fall of" the touchpad, the second touch will report 0 for y (max y really since the y axis is inverted) and max x as coordinates, rather then reporting 0, 0 as is expected for a non touching finger. This commit detects this and treats these touches as non touching. See the evemu-recording here: https://bugzilla.redhat.com/attachment.cgi?id=1025058 BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1221200 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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