1758195 - [Wayland] Newly opened maximized windows in Firefox are not correctly updated until focus-switching

Status: RESOLVED WORKSFORME

(Core :: Widget: Gtk, defect)

Description

[Jan Sonntag]

Attachment: bug_demo.webm

Environment: Arch Linux with Gnome Wayland session + nvidia driver
Mozilla/5.0 (X11; Linux x86_64; rv:100.0) Gecko/20100101 Firefox/100.0
BuildID: 20220304152603

STR:

1. Run Firefox on Wayland and maximize the window.
2. Try to create a new window from the current one by either using "Open link in new window", "Move tab to new window" or Tab Tear-off.

You will notice that the new window appears frozen. The window still reacts to user input, but isn't updated any longer and appears unresponsive. A short video depicting this issue has been attached.

After switching to another application and switching back, the new window starts being rendered normally again.

Bisection with mozregression indicates this issue became apparent with the landing of Bug 1749174:

Last good revision: 5ed2c0d1e7819e74a8816219e6154f1707e52d85
First bad revision: 96732a2f2846c158ac1c1dc9f1f2f9b1d676df83
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=5ed2c0d1e7819e74a8816219e6154f1707e52d85&tochange=96732a2f2846c158ac1c1dc9f1f2f9b1d676df83

Therefore, it's probably a Wayland issue.

Comment 1

[Jan Sonntag]

Seems like this issue was only temporary and disappeared after a system update and reboot. Therefore was probably not caused by Firefox.

Comment 2

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

Setting Regressed by field after analyzing regression range found by mozregression in comment #0.