1705645 - Strange artifacts on browser

Status: RESOLVED INCOMPLETE

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

Description

[u654922]

Attachment: Screenshot 2021-04-16 104303.jpg

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0

Steps to reproduce:

Visited youtube and after a while strange artifacts show in browser (tab and page area)

Actual results:

Visited youtube and after a while strange artifacts show in browser (tab and page area)

Expected results:

No artifacts should show

Comment 1

[Rares Doghi, Desktop QA]

Hi Nikos, Thanks for taking the time to log this issue, can you please provide the information from the about:support ? you have a Copy text to clipboard button and then you can paste that into a notepad and attach the file to this issue ?

Also does it happen often ? are you able to reproduce the issue constantly ?
Can you please reach about:config and set gfx.webrender.force-disabled = true and recheck if the issue still occurs ?

Comment 2

[Jim Mathies [:jimm]]

Can you please post your about support text? Thanks!

Comment 3

[u654922]

Attachment: Screenshot 2021-04-22 122638.jpg

Comment 4

[u654922]

Attachment: about:support text

(In reply to Rares Doghi from comment #1)
> Hi Nikos, Thanks for taking the time to log this issue, can you please provide the information from the about:support ? you have a Copy text to clipboard button and then you can paste that into a notepad and attach the file to this issue ?
> 
> Also does it happen often ? are you able to reproduce the issue constantly ?
> Can you please reach about:config and set gfx.webrender.force-disabled = true and recheck if the issue still occurs ?

Yes, it happens almost all of the time. Here is the about:support:

Comment 5

[u654922]

It also happens with the v88 I have just received.
I have set gfx.webrender.force-disabled to true. I will let you know how it goes.

Comment 6

[u654922]

gfx.webrender.force-disabled to true and everything is gone! Thank you!

Comment 7

[Rares Doghi, Desktop QA]

Thanks for all the info, can you please try setting gfx.webrender.force-disabled = false again but disabling the uBlock origin addon ? and see if that fixes this issue as well ?

I think I saw a few similar issues cause by uBlock when WebRender was enabled but it might not be related to this issue. Can you please give it a try and let us know ?

Comment 8

[Rares Doghi, Desktop QA]

I also changed the component to WebRender since disabling it fixes the issue, but we can move it back if its not specific to WebRender. @Jim

Comment 9

[Glenn Watson [:gw]]

Do you see the issue any more? (WR is deployed everywhere, there's no non-WR code path now).

Comment 10

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:gw, since the bug has recent activity, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 11

[Glenn Watson [:gw]]

Closed as reporter account is disabled.