[Qemu-devel] [Bug 1802915] Re: GTK display refresh rate is throttled

[Chen Zhang]

** Description changed:

  Guest OS running with GL enabled GTK display shows a reduced refresh
  rate, e.g. moving cursor around with iGVT-g DMA Buf.
  
- It seems that a default refresh interval GUI_REFRESH_INTERVAL_DEFAULT
+ Apparently, a default refresh interval GUI_REFRESH_INTERVAL_DEFAULT
  (30ms) is defined in include/ui/console.h, throttling the display
  refresh rate at 33Hz.
  
- To correct this throttle issue, a shorter interval should be applied to
- display change listener or the default value should be used.
+ To correct this throttle issue, a shorter interval (16 or 17
+ milliseconds) should be applied to display change listener or the
+ default value should be modified.

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https://bugs.launchpad.net/bugs/1802915

Title:
  GTK display refresh rate is throttled

Status in QEMU:
  New

Bug description:
  Guest OS running with GL enabled GTK display shows a reduced refresh
  rate, e.g. moving cursor around with iGVT-g DMA Buf.

  Apparently, a default refresh interval GUI_REFRESH_INTERVAL_DEFAULT
  (30ms) is defined in include/ui/console.h, throttling the display
  refresh rate at 33Hz.

  To correct this throttle issue, a shorter interval (16 or 17
  milliseconds) should be applied to display change listener or the
  default value should be modified.

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