1922916 - Scroll wheel does not scroll page content in recent nightly

Status: RESOLVED FIXED

(Core :: Widget: Gtk, defect, P1)

Description

[Arash]

Steps to reproduce:

1. Visit a web page with content larger than the window size.
2. Use the scroll wheel to scroll the content

Actual results:

Nothing. The content did not scroll.

Expected results:

The page should have scrolled.

Comment 1

[Arash]

I tested against older nightly releases, and the bug first appears in the 2024-10-05 nightly. I also restarted in troubleshooting mode and the problem remained.

OS: Ubuntu 22.04

Comment 2

[Arash]

Probably relevant. I'm using Wayland.

Comment 3

[Gregory Pappas [:gregp]]

probably bug 1836886

Comment 4

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

:stransky, since you are the author of the regressor, bug 1836886, could you take a look?

For more information, please visit BugBot documentation.

Comment 5

[Martin Stránský [:stransky] (ni? me)]

Please attach your about:support page. On which page you see the bug?
Thanks.

Comment 6

[Alice0775 White]

Attachment: about:support

I can reproduce the issue on nightly133.0a1 ubuntu22.04.

STR:

1. Open any page.
   e.g., https://ftp.mozilla.org/pub/firefox/nightly/2024/10/2024-10-06-21-52-00-mozilla-central/
2. Try to scroll with mouse wheel

Workaround:
Disable wayland.
i.e., set the following environment variable then start nightly.
export MOZ_ENABLE_WAYLAND=0

Comment 7

[Kestrel]

I see this on Ubuntu 22.04.5 LTS but not Ubuntu 24.04 (both native Wayland) with a standard mouse scroll wheel.

Comment 9

[Adam Williams]

I can reproduce this (Ubuntu 22.04.4 LTS).

I didn't stumble across this bug originally (I was doing string search for "scrollwheel" rather than "scroll wheel"), so ended up opening dupe bug 1923073, but there's a mozregression attached there on that bug (in case it's at all useful) which supports the regressor being 1836886.

Comment 10

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

The bug is marked as tracked for firefox133 (nightly). However, the bug still isn't assigned.

:gcp, could you please find an assignee for this tracked bug? Given that it is a regression and we know the cause, we could also simply backout the regressor. If you disagree with the tracking decision, please talk with the release managers.

For more information, please visit BugBot documentation.

Comment 11

[Martin Stránský [:stransky] (ni? me)]

I wonder if that's related to Gtk3 version. An old Gtk3 version fails to work with more than one wl interface. We may need to enable the smooth scroll etc. on new Gtk3 only.

Comment 12

[Martin Stránský [:stransky] (ni? me)]

Can you check which gtk3 versions are used on 22.04 and 24.04?
Thanks.

Comment 13

[Kestrel]

Ubuntu 22.04.5 (live USB) is gtk 3.24.33.
Ubuntu 24.04 is gtk 3.24.41.

Comment 14

[Botond Ballo [:botond]]

Just to add a data point, I cannot reproduce this on PureOS 10 which has gtk 3.24.27 (tested in both GNOME and KDE).

Comment 15

[Martin Stránský [:stransky] (ni? me)]

Will look at 22.04 then.

Comment 16

[Martin Stránský [:stransky] (ni? me)]

I see that too. Just to be sure, please attach log of WAYLAND_DEBUG=1 MOZ_LOG="Widget:5".
Thanks.

Comment 17

[Martin Stránský [:stransky] (ni? me)]

Attachment: Bug 1922916 [Wayland] Listen for pointer events only if AXIS_VALUE120 is supported r?emilio

Comment 19

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/9ba4093d9b54
[Wayland] Listen for pointer events only if AXIS_VALUE120 is supported r=emilio

Comment 20

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/9ba4093d9b54