1749169 - [wayland] [kde] Mousewheel ticks scroll faster in KWin than in GNOME

Status: NEW

(Core :: Widget: Gtk, defect)

Description

[Emilio Cobos Álvarez (:emilio)]

That is because the event delta in the smooth event is not integral (it's e.g. 1.5). However they do send the discrete ticks as well.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1749169 - Listen to discrete scroll events on Wayland. r=stransky

This matches the GTK4 behavior, and shouldn't change behavior on
GNOME+Wayland, since the deltas for mousewheel ticks are 1.0 there.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1715513

Comment 3

[Daniel Tang]

This also affects me on KDE 5.26 Wayland. My Amazon fixed-lines mouse scrolls extremely fast.

As a workaround I set "mousewheel.system_scroll_override.enabled" to false and now it's a bit more comfortable. This gets it to scroll 2 rows in about:config instead of 3.

Comment 4

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Emilio, I wonder how Bug 1836886 align here? We can use discrete scroll events directly with patches at Bug 1836886 so is this patch still applicable or do you want to rebase it on top of Bug 1836886 one?
Thanks.

Comment 5

[Emilio Cobos Álvarez (:emilio)]

I suspect bug 1836886 fixes this too. I wonder, tho, if this patch also works and fixes bug 1836886 similarly? It'd be simpler...

Comment 6

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Can you please test on latest nightly?
https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Testing_Mozilla_Nightly_binaries
Thanks.