1734452 - Flickering Images all over the Firefox Window after duplicated display standby

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[intet]

Attachment: IMG_9102.MOV

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

Steps to reproduce:

Connect a second monitor with same resolution and duplicate display output so both show the same. Wait for a while and let computer run while turning off both displays or letting them go to standby. Then turn on one or both displays again.

Details: My displays are one 1440p 240hz Alienware AW2721D and one 60Hz Wacom 27QHD touch. I mine during the night and use one display for gaming one one for working. Whenever I come back to the computer in the morning I have to replug one of my display cables for the issue to be resolved till I walk away for a while. Then it happens again if one display goes to sleep. The Alienware is connected over Displayport and the Wacom over HDMI

Actual results:

Many websites experience bad flickering of all images seemingly randomly all over within the Firefox Window if I hover my mouse over clickable images or links etc.
Digitec.ch and Youtube are especially bad with the flickering.
Youtube link of a video where it is happening:
https://youtu.be/PPhELIgcPMk

Expected results:

Firefox working without flickering of images.,

Comment 1

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

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

Comment 2

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

The severity field is not set for this bug.
:TYLin, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 3

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

This looks like a graphics issue.

Comment 4

[Darkspirit]

Thanks for the report! Please open about:support, click on "Copy text to clipboard" and paste it here.