1691955 - WebRender rendering issue on Mali-T device

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect, P3)

Description

[Jim Mathies [:jimm]]

Attachment: dDqz7xlYRt6O0P-Ey9X7jj6JPvcuR_13v7IWbuDNHk4.webp

Reported on Reddit -
https://www.reddit.com/r/firefox/comments/lge6r9/rendering_issues_with_firefox_android_details/

Samsung Galaxy Express Prime 3 ( SM-J337A )

Comment 1

[Jim Mathies [:jimm]]

Attachment: about:support text

Comment 2

[Jim Mathies [:jimm]]

Attachment: about support.txt

Comment 3

[mikaka27]

Op on reddit added this comment: "Updating Firefox (build id 20210209092956) seemed to fix the issue, thank you all for help!"

Comment 4

[Jamie Nicol [:jnicol]]

Attachment: Bug 1691955 - Avoid partial updates to picture cache tiles on Mali-Txxx. r?nical

Previously we had encountered issues when rendering partial regions of
picture cache tiles on Mali-Gxx devices. These often manifested as
patterns of black squares and rectangles. We worked around this by
ensuring that we always clear and render the entire tile. We have now
had a report of a similar looking problem on a Mali-Txxx devices, so
apply the same workaround there.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/e653fd72aa0b
Avoid partial updates to picture cache tiles on Mali-Txxx. r=nical

Comment 6

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/e653fd72aa0b