1603515 - Dotted artifacts appear on many websites on Intel HD 520 with webrender.compositor

Status: RESOLVED FIXED

(Core :: Graphics, defect, P1)

Description

[Dekel Tal]

Attachment: 2019-12-12 20_24_18-YouTube - Firefox Nightly.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0

Steps to reproduce:

Hovering over many sites (including Bugzilla, youtube and more) cause dotted artifacts to temporarily appear on screen - see attached

Comment 1

[Dekel Tal]

Attachment: 2019-12-12 20_24_18-YouTube - Firefox Nightly.png

Comment 2

[Dekel Tal]

Attachment: 2019-12-12 20_26_02-Bug List_ youtube - Firefox Nightly.png

Comment 3

[Dekel Tal]

Update - I checked:

• Ran Firefox with all addons disabled - did not solve
• Refreshed firefox installation - did not solve
• Checked with regular FF version (not nightly) - issue does not occur

Comment 4

[Sotaro Ikeda [:sotaro]]

It looks similar to Bug 1602511.
Dekel Tal, can you upload about:support information?

Comment 5

[Dekel Tal]

Attachment: about_support.txt

Comment 6

[Sotaro Ikeda [:sotaro]]

Thank you! From Attachment 9115717 [details], the problem also happened HD520 and we need to extend blacklisted driver version.

Comment 7

[Sotaro Ikeda [:sotaro]]

Attachment: Bug 1603515 - Extend Blacklist of webrender compositor on Intel HD 520

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7d9b9858c2ec
Extend Blacklist of webrender compositor on Intel HD 520 r=gw

Comment 9

[Noemi Erli[:noemi_erli]]

https://hg.mozilla.org/mozilla-central/rev/7d9b9858c2ec

Comment 10

[Dzmitry Malyshau [:kvark]]

Dekel, would you be able to check if the issue is visible on this build? Here is the exact artifact link for Windows. Thank you!

Comment 11

[Dekel Tal]

Been using the build today, and so far the issue did not reproduce. Will keep using it for the following days and will update if anything pops.

Comment 12

[Dzmitry Malyshau [:kvark]]

Thank you Dekel!
The original fix (that added the targets to blocklist) was reverted in https://phabricator.services.mozilla.com/D78705, which works around the issue but still allows Direct Composition to be enabled.