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  1. Qt
  2. QTBUG-45959

QtQuick Animation timing too fast on Linux nvidia optimus systems

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    Description

      This is a bug report resulting from https://bugs.kde.org/show_bug.cgi?id=347237

      On Linux systems using a nvidia optimus setup with PRIME, QtQuick's animations play back way too fast, as if they somehow used a wrong estimate for the refresh rate. This leads to sped-up animations and excessive CPU usage.

      A minimal test case can be found here: https://github.com/CounterPillow/spinnertest

      This may be related to nvidia not having implemented PRIME fencing at the moment, see https://devtalk.nvidia.com/default/topic/775691/linux/vsync-issue-nvidia-prime-ux32vd-with-gt620-m-/post/4430873/#4430873

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59300 Too fast animations on linux (+ timers issue)

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-43811 QML animation running too fast on Windows 7

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59300 Too fast animations on linux (+ timers issue)

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-71016 QML animations run too fast on macOS Mojave (10.14)

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

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              lagocs Laszlo Agocs
              fratti Nicolas Frattaroli
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                Updated:
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