1653426 - Webrender: Rendering corruption

Status: RESOLVED DUPLICATE of bug 1653413

(Core :: Graphics: WebRender, defect, P2)

Description

[Okarin]

Attachment: 1653374.png

Steps to reproduce:

• create a new profile
• open https://bugzilla.mozilla.org/show_bug.cgi?id=1653374
• click on the SW-WR_screenshot.png attachment
• click outside the image

Actual results:
The top of the page is not redrawn correctly and the screenshot is still partially displayed.

Differential Revision: https://phabricator.services.mozilla.com/D82666

I can reproduce with both Intel and Nvidia gpu on Windows 10.
I don't see the issue with gfx.webrender.compositor = false.

I also see different types of corruption rendering on other websites (gitlab.com, console.cloud.google.com, numerama.com).
Sometimes it's the awesomebar that remains partially visible after closing it.
It is not limited to the content of the page and can affect user interface components like the sidebar or address bar.

Comment 1

[Okarin]

Attachment: 2020-07-16 23-12-50.mkv

The issue on https://www.numerama.com/politique/637160-il-est-temps-darreter-de-nous-bassiner-avec-lanonymat-en-ligne.html

Comment 2

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

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.