1624754 - Firefox 74 graphics aberration

Status: RESOLVED INVALID

(Core :: Graphics, defect)

Description

[github.6zua]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0

Steps to reproduce:

When using FF and typically Netflix, in scenes of movement, there are artifacts around the moving sections like horizontal raindrops, very thin. Static scenes are perfectly good.

Actual results:

Ive tried no acceleration/recommended and other settings, started in safe mode, Plugins installed, but the issue does not change. No such issue in Chrome or ElectronPlayer.

Hardware is a Lenovo E590 Thinkpad, but clearly its not a hardware issue as it only appears in Firefox.

This seems to be a slightly different issue than https://bugzilla.mozilla.org/show_bug.cgi?id=1611898 as its not a single line, but a screen full of raindrops.
Oddly, when doing a screen capture, the artifacts do not capture, only the live screen shows. So sorry, I cant add a screenshot.

Expected results:

Movement without blemishes.

Comment 1

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

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 2

[github.6zua]

Also tried:
gfx.webrender settings; no change.

Comment 3

[Darkspirit]

Please open about:support, click on "Copy text to clipboard" and paste it into https://bugzilla.mozilla.org/attachment.cgi?bugid=1624754&action=enter. Thanks!

Comment 4

[github.6zua]

Attachment: Sort issue + about:support

Comment 5

[Jessie [:jbonisteel] pls NI]

Just want to make sure I understand, did you try enabling WebRender (https://bugzilla.mozilla.org/show_bug.cgi?id=1624754#c2) to see if the bug still happens with WebRender on?

Comment 6

[github.6zua]

I did say that I had tried webrender settings in post. However it has been sorted and was not a Firefox issue.
To fix this was found on Ubuntu forums:
Re: Intel UHD Graphics 620 issues on 18.04.4 LTS

The fix in your link is the one I use for tearing on Intel Graphics.
You can try it, it won't do any harm and you can always delete the file if it doesn't work.
Run the following in a terminal:
Code:

sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf

Then copy & paste the following in the empty file that opens:
Code:

 Section "Device"
 Identifier "Intel Graphics"
 Driver "intel"
Option "TearFree" "true"
 # Option "AccelMethod" "sna"  
 # Option "AccelMethod" "uxa"
 EndSection


Then Reboot the computer.