I experience rendering issues with FF Developer edition

UNCONFIRMED
Unassigned

Status

()

P3
normal
UNCONFIRMED
2 years ago
a year ago

People

(Reporter: michael.star.mail, Unassigned)

Tracking

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [specification][type:bug][gfx-noted])

Attachments

(2 attachments)

(Reporter)

Description

2 years ago
What did you do?
================
1. Open a page
2. Open another window (hardware accelerated WPF) that overlap Firefox window
3. Minimize that window and see rendering artifacts.

What happened?
==============
The page was rendered with artifacts (black areas)

What should have happened?
==========================
The page had to be rendered normally

Is there anything else we should know?
======================================
I'm on the alpha channel but I experience this bug several versions already. 
I have a switchable graphics (Nvidia and Intel).
I have a screenshots.
OS is Windows 10 Pro
(Reporter)

Comment 1

2 years ago
Created attachment 8760671 [details]
firefox bug.png

The areas in red is my edits (removed personal info)

Updated

2 years ago
Component: General → Graphics
Product: Mozilla Developer Network → Core
Thank you for the report. Does this still occur if you disable acceleration in firefox?

Although you have experienced this for a few releases, as it may still be a regression would you be able to run mozregression to find the regression range? https://mozilla.github.io/mozregression/
Whiteboard: [specification][type:bug] → [specification][type:bug][gfx-noted]

Comment 3

2 years ago
I too experience this on two separate computers (one with switchable graphics, one without). Disabling hardware acceleration does not seem to fix the problem for me. 

Things of note:
- It can go for long periods without occuring
- When it does occur, it is often on a page load
- Mouse movement, page scrolling, tab switching, etc can make it appear/disappear

Windows 10 x64
GTX 980Ti (Computer 1) and GTX 960M + HD530 (Computer 2)

Comment 4

2 years ago
Created attachment 8767449 [details]
rendering bug firefox

Another example image of the bug occurring.
(Reporter)

Comment 5

2 years ago
The bug doesn't reproduce after I have switched off hardware acceleration.
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