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Peter Hutterer authored
The touchpad's sensors are too far apart (or the firmware interferes), causing in a jerky movement visible especially on slow motion. We get a bunch of normal motion events, then only ABS_MT_PRESSURE updates without x/y updates. After about one mm of movement x/y updates resume, with the first event covering the distance between the last motion event. That event is usually accelerated and thus causes a large jump. Subsequent events are sufficiently fine-grained again. This patch counts the number of non-motion events. Once we hit 10 in a row, we mark the first motion update as non-dirty, effectively discarding the motion and thus stopping the pointer jumps. https://bugs.freedesktop.org/show_bug.cgi?id=94379 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
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