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  1. Minecraft: Java Edition
  2. MC-130374

vSync turns off in fullscreen mode

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Minecraft 1.13-pre3
    • Minecraft 18w21b, Minecraft 18w22a, Minecraft 18w22b, Minecraft 18w22c, Minecraft 1.13-pre1, Minecraft 1.13-pre2, Minecraft 18w44a, Minecraft 18w45a
    • Operating System: Windows 10 (amd64)
       Java Version: 1.8.0_171
       Allocated memory: 1024M
       CPU: AMD Ryzen 3 1200 Quad-Core Processor
       GPU: GeForce GTX 750 | 391.35
    • Community Consensus

      vSync turns off in fullscreen mode. When switching back to windowed mode vSync turns on. Issue can be solved by enabling vSync when switching to fullscreen mode. In LWJGL3, you need to enable vSync again after switching to fullscreen mode: glfwSwapInterval(1)

      How to reproduce:

      1. Start Minecraft
      2. Go to the video settings
      3. Enable vsynс and fullscreen mode, set unlimited framerate
      4. Restart Minecraft
      5. Load world
      6. Press F11 (switch to windowed mode)
      7. Press F11 again (switch to fullscreen mode)
      8. Press F3

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        3. 2018-05-28_12.37.04.png
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        4. 2018-05-28_12.37.16.png
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        5. 2018-11-01_17.43.53.png
          2018-11-01_17.43.53.png
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            boq [Mojang] Bartosz Bok
            GishCraft MotanGish
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              Created:
              Updated:
              Resolved:
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