[Merge] ~vanvugt/ubuntu/+source/mutter:fix-lp1763892-cosmic into ~ubuntu-desktop/ubuntu/+source/mutter:ubuntu/cosmic

[Daniel van Vugt]

The proposal to merge ~vanvugt/ubuntu/+source/mutter:fix-lp1763892-cosmic into ~ubuntu-desktop/ubuntu/+source/mutter:ubuntu/cosmic has been updated.

Commit message changed to:

Remove 60 FPS limitation, thus supporting high frame rates

For Xorg the only fix required was to remove the spurious patch:

  clutter-Smooth-out-master-clock-to-smooth-visuals.patch

which had the effect of imposing a 60 FPS limitation. That patch
never landed upstream.

For Wayland you need both the above fix and the introduction of
hardware vsync support which was upstreamed in mutter 3.32 and is
backported to 3.30 in two commits/patches:

  lp1763892-a-renderer-native-Add-hardware-presentation-timing.patch
  lp1763892-b-renderer-native-Advertise-_FEATURE_SWAP_THROTTLE.patch

https://bugs.launchpad.net/bugs/1763892

For more details, see:
https://code.launchpad.net/~vanvugt/ubuntu/+source/mutter/+git/mutter/+merge/363599
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