1719197 - Mouse scrolling is WAY TOO slow and makes it unusable

Status: RESOLVED INVALID

(Core :: Widget: Gtk, defect, P3)

Description

[a.geno]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

I have connected my wireless mouse.
I am under GNOME 40 Wayland, ArchLinux.

Actual results:

Mouse scrolling is REALLY slow, and mouse becomes unusable. Mouse scrolling in other apps e.g. Chrome works good. Firefox is the only one app that have this annoying slow scrolling.
The issue only happens with mouse, the touchpad scrolling is ok.

Expected results:

Mouse scrolling should be faster to make it usable.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Emilio Cobos Álvarez (:emilio)]

Attachment: test-case

Scroll down, then scroll back up on this page.

What does this page log for you in Firefox with your mousewheel? It should log something like 1 3 on stable. Is it better on Nightly? Does it happen on a clean profile?

We increased the wheel scroll speed on Linux in bug 1715513, but it shouldn't be "unusable" before that.

Comment 3

[a.geno]

(In reply to Emilio Cobos Álvarez (:emilio) from comment #2)

It logs:
0.6000000000000001
-0.6000000000000001

On a clean profile (using incognito mode) it's the same.

On Nightly:
6
-6

So I guess that I just need to wait for the update?

Comment 4

[a.geno]

UPDATE:
I don't know why, but also with Nightly I have 0.6 and -0.6 of scrolling speed....... and it's unusable again.
I really don't know how it changed.

Comment 5

[a.geno]

Ok I got what happened.
Basically with Nightly my mouse scroll was working good because I didn't set "mousewheel.default.delta_multiplier_y" yet. But since I use kinetic scrolling with touchpad, the default scrolling delta multplier was too high and so I decreased "mousewheel.default.delta_multiplier_y" to 20. I didn't realize that I was ALSO changing the scrolling of mouse.

Is there a way to "separate" the scrolling sensitivity of touchpad with the scrolling sensitivity of mouse and have two separate options?

Comment 6

[a.geno]

UPDATE: of course the issue is not related directly to wayland... but under xorg, since kinetic scrolling is not available, I can set the wheel delta multiplier to the default value and touchpad and mouse are usable. But under wayland with kinetic scrolling and with decreased wheel delta multplier there is the issue like I said.

Comment 7

[a.geno]

any suggestion?

Comment 8

[a.geno]

I submitted a new bug here: https://bugzilla.mozilla.org/show_bug.cgi?id=1724926
and closing this one.