This may be a graphics driver issue since I've only tested i915 so far
(and because the power mode affects the outcome).
** Description changed:
Kinetic scrolling is stuttering in 26.10 for some apps, whereas it
doesn't in 26.04 on the same machine. This makes web browsing with
Firefox in 26.10 a noticeably less smooth experience than in 26.04 on
the same machine.
Test case:
1. Make sure the power mode is Balanced (not Performance).
2. Open: Settings > Mouse & Touchpad > Touchpad > Test Settings > Scrolling
3. Fling the image with the touchpad (two fingers) or with a touchscreen.
4. Expect: The image scrolls smoothly.
The affected apps so far are GTK-based as well as Firefox, suggesting it
might be double-buffered apps (Mutter's fault in frame scheduling), if
not a regression in GTK.
+
+ Workaround:
+
+ Change the Power Mode to Performance to get smooth scrolling back.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2164623
Title:
[regression] Kinetic scrolling is stuttering in 26.10 (it doesn't in
26.04)
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