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https://bugs.launchpad.net/bugs/2076318

Title:
  Heavy cursor stutter on OLED panels when using a touchpad

Status in Mutter:
  Fix Released
Status in mutter package in Ubuntu:
  Fix Released
Status in mutter source package in Noble:
  Fix Released
Status in mutter source package in Oracular:
  Fix Released

Bug description:
  [ Impact ]

  Heavy mouse cursor stutter is observed in Wayland sessions on some
  machines, most visibly laptops with OLED panels when using the
  touchpad. Using a high speed USB mouse can hide the issue.

  [ Test Plan ]

  0. Find an affected machine.
  1. On the login screen move the cursor slowly from left to right. Expect no 
stuttery jumps.
  2. Still on the login screen, move the cursor rapidly in small circles. 
Expect almost perfectly even spacing between cursor sprites.

  [ Where problems could occur ]

  In scheduling of cursor movement or screen updates. If a mistake is
  made then one could experience stuttering or freezes.

  [ Original description ]

  On an Asus Zenbook S 13 I experience heavy cursor stutter, but not
  under all conditions...

  Wayland on battery: Heavy stutter
  Wayland on AC power: Light stutter
  Xorg on battery: Perfectly smooth
  Xorg on AC power: Perfectly smooth

  Mutter version: 46.4
  Display: 60.00Hz fixed frequency OLED
  Touchpad: 144Hz-145Hz

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