This bug was fixed in the package mutter - 46.2-1ubuntu0.24.04.2
---------------
mutter (46.2-1ubuntu0.24.04.2) noble; urgency=medium
[ Marco Trevisan (Treviño) ]
* debian/patches: Fix screen recording crash with scaling and a custom cursor
(LP: #2077746)
[ Daniel van Vugt ]
* Add backends-native-Avoid-duplicating-or-losing-KMS-property-.patch
to avoid duplicating or losing colour profile, night light, HDR, or
privacy screen updates (LP: #2025006)
* Update the KMS deadline evasion patch to 2000us instead of 1000us.
Some laptops need higher numbers than 1000us to avoid cursor stutter
(LP: #2076318)
-- Marco Trevisan (Treviño) <[email protected]> Wed, 28 Aug 2024
15:55:48 +0200
** Changed in: mutter (Ubuntu Noble)
Status: Fix Committed => Fix Released
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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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