1691691 - Artifacts in graphics in FF 85.0.1 in connection with linux kernel 5.10.xx

Status: RESOLVED DUPLICATE of bug 1694792

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

Description

[LinuxOpa]

Attachment: Artefakte.jpg

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:85.0) Gecko/20100101 Firefox/85.0

Steps to reproduce:

Ubuntu Linux 20.04.2
Kernel 5.10.13, 5.10.14
.
After update from FF 85.0 to FF 85.0.1 artifacts in small graphics. See Attachment.

No error in safe mode.

In normal mode with disabled addons again artifacts.

Change of theme, artifacts remain.

FF 85.0.1 with kernel 5.8.43 no artifacts.

Suspect connection with changes in kernel 5.10.xx and changes in FF 85.0.1

I am happy to debug under guidance

[Translated with www.DeepL.com/Translator (free version)]

Actual results:

see above

Expected results:

see above

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Graphics' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[LinuxOpa]

with kernel 5.11.0-c7 also artifacts

Comment 3

[LinuxOpa]

Attachment: artifacts

Comment 4

[LinuxOpa]

firefox-87.0a1.de.linux-x86_64 with with kernel 5.11.0-c7

completely new installation without old profile and without addons : artifacts
see screenshot 2

Comment 5

[LinuxOpa]

firefox as snap: artifacts

Comment 6

[Lee Salzman [:lsalzman]]

Can you please attach your about:support information so we can have a better idea what's going on with your hardware setup?

Comment 7

[LinuxOpa]

Attachment: 1.txt

here you are:

Comment 8

[LinuxOpa]

Attachment: 2.txt

here you are:
-1.txt
-

Comment 9

[LinuxOpa]

here you are:
-1.txt
-2.txt

Comment 10

[LinuxOpa]

Attachment: simplescreenrecorder-2021-02-15_17.44.08.mp4

I have recorded a small screen video, maybe that will help.

Comment 11

[LinuxOpa]

I have recorded a small screen video, maybe that will help.
simplescreenrecorder-2021-02-15_17.44.08.mp4

Comment 12

[LinuxOpa]

kernel 5.11: artifacts

Comment 13

[LinuxOpa]

FF 86.0 + kernel 5.11: artifacts

Comment 14

[LinuxOpa]

kernel 5.11 + FF 86.0: artifacts

Comment 15

[LinuxOpa]

kernel 5.11.3 + FF 86.0: artifacts

Comment 16

[LinuxOpa]

kernel 5.11.6 + FF 86.0.1: artifacts

Comment 17

[Lee Salzman [:lsalzman]]

Andrew, is this something we might need to add a WR/linux blocklist entry for?

Comment 18

[LinuxOpa]

i played a little bit with 'render' parameters in about:config.
after set gfx.webrender.all to false the artifacts are gone

why gfx.webrender.all was set to true I cannot say

Comment 19

[Robert Mader [:rmader]]

Apparently a dup of bug 1694792 (Intel(R) HD Graphics 2500)