JDK-8168366 : vsync is always on with Ubuntu and nVidia proprietary drivers
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: 9
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • OS: linux
  • Submitted: 2016-10-19
  • Updated: 2025-01-27
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tbdUnresolved
Related Reports
Relates :  
JDK-8291958 - vsync happens once for each stage instead of once per pulse
Description
The recommended way to turn off vsync is to use the GLX_SGI_swap_control extension and the glXSwapIntervalSGI function.  Our code already does that, but for some reason we remain vsync-locked on Ubuntu.

Another way to turn it off is to use the __GL_SYNC_TO_VBLANK=0 environment variable, which does work but requires user intervention so it can't be controlled from our command line switch.