1870565 - www.youtube.com - Black bar overlapping the video with webrender and av1 encoding enabled

Status: NEW

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

Description

[Calin Tanase (OOO until 22nd of Nov)]

Note:

• We have received the report via webcompat.com, we have move it here since it is not a compatibility issue.
• Feel free to move the issue if the Product/Component is wrong.

From github: https://github.com/webcompat/web-bugs/issues/131058.

<!-- @browser: Firefox 122.0 -->
<!-- @ua_header: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0 -->
<!-- @reported_with: desktop-reporter -->
<!-- @public_url: https://github.com/webcompat/web-bugs/issues/131058 -->

URL: https://www.youtube.com/watch?v=nDXsVhFG7TE

Browser / Version: Firefox 122.0
Operating System: Windows 10
Tested Another Browser: Yes Edge

Problem type: Design is broken
Description: Items are overlapped
Steps to Reproduce:
I'm using firefox nightly 122, I have webrender on and av1 encoding enabled in youtube.com/testtube

I have AMD Radeon RX 570 4GB graphics card with 23.11.1 driver. Some youtube videos are overlapped by black bar when the youtube player bar is visible, and doesn't go away until when the youtube player bar is gone.
<details>
<summary>View the screenshot</summary>
<img alt="Screenshot" src="https://webcompat.com/uploads/2023/12/5174dcf9-120a-4482-97ed-7b5878e29e77.jpeg">
</details>

<details>
<summary>Browser Configuration</summary>
<ul>
<li>gfx.webrender.software: false</li><li>blockList: basic</li><li>hasTouchScreen: false</li><li>frameworks: {'fastclick': False, 'mobify': False, 'marfeel': False}</li><li>mixed active content blocked: false</li><li>mixed passive content blocked: false</li><li>tracking content blocked: false</li>
</ul>
</details>

View console log messages

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Change performed by the Move to Bugzilla add-on.