** Changed in: mutter (Ubuntu Lunar)
Assignee: Daniel van Vugt (vanvugt) => Jeremy Bícha (jbicha)
** Changed in: mutter (Ubuntu Jammy)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/2023766
Title:
Mouse cursor stutters over GUI elements that are animated
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Jammy:
In Progress
Status in mutter source package in Lunar:
Triaged
Status in mutter source package in Mantic:
Fix Released
Bug description:
[ Impact ]
Mouse cursor stutters over GUI elements that are animated, such as GTK
apps, web pages and shell elements.
[ Test Plan ]
1. Open Settings.
2. Move the cursor up/down over an empty area of the desktop.
3. Move the cursor up/down over the list pane on the left side of the
Settings window.
Expect: No difference in cursor smoothness whether the window below is
animating in response to movement or not.
[ Where problems could occur ]
In frame scheduling, so the risk is more stuttering or screen freezes.
[ Workaround ]
Add this to /etc/environment:
CLUTTER_PAINT=disable-dynamic-max-render-time
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