1731895 - Wayland compositor tiles get misaligned

Status: NEW

(Core :: Graphics: WebRender, defect)

Description

[Jan Alexander Steffens [:heftig]]

Attachment: Image with some rows and columns missing

mozregression --launch 2021-09-21 -a http://www.lagom.nl/lcd-test/sharpness.php --pref gfx.webrender.compositor.force-enabled:true

Make the window small enough to be scrollable horizontally and vertically, then scroll around the image; sometimes rows and/or columns go missing (see attached image).

Firefox Nightly, Scale 200%, Arch Linux, GNOME Shell 40.4, Mesa/Iris 21.2.1

Comment 1

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

The severity field is not set for this bug.
:jimm, could you have a look please?

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Comment 2

[Vincent Chernin]

Attachment: Nightly with wayland compositing.png

I think I've experienced the same bug, in about:preferences#home the Shortcuts checkbox gets slightly distorted. Doesn't occur when the gfx.webrender.compositor.force-enabled setting is disabled. This Shortcuts checkbox and icon appear to be the only one affected.

Although this is without any scrolling in the settings page, so maybe it's a slighlty different issue?

Nightly, Scale 200%, GNOME 41, Fedora 35, Mesa 21.2.3

Comment 3

[ojab]

Attachment: Example

Sometimes text on the pages is kinda cropped, I suppose it's the same issue.