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  1. Qt
  2. QTBUG-14102

Touch events can fill up the event queue, causing latency in touch feedback

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    Description

      While manipulating a touch UI with moderate CPU load / processing, the event queue might not be able to handle all incoming touch events. This causes delivery of touch events to occur after the touch operation took place, creating an effect of latency when interacting with a touch area. To fix this, touch events should possible to compressed as touch input might not make sense a certain time after the touch event actually occured.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-71708 Linux: Touch/Tablet events can fill up the event queue, causing latency in touch feedback

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-14093 Processing of multitouch events is sometimes slow on MacBook with multitouch trackpad when using in QGraphicsView

          • P4: Low - Would be nice to fix, but it's not very important.
          • Open
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              laknoll Lars Knoll
              hhartz Henrik Hartz (closed Nokia identity) (Inactive)
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                Resolved:

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