1765612 - YouTube fast forwarding MacBook Air has no sound

Status: UNCONFIRMED

(Core :: Audio/Video: cubeb, defect)

Description

[beknikci]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Steps to reproduce:

When fast-forwarding or rewinding videos in YouTube, there is no sound output. Also, there are long loading times when fast-forwarding or rewinding.
This problem only occurs with the MacBook Air.

If another speaker is connected via bluetooth, there is no problem with fast-forwarding or rewinding.

Is it possible that Firefox has a problem with the internal sound card of the MacBook Air?

Under Ubuntu or Windows there is no problem.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::DOM: Device Interfaces' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Alastor Wu [:alwu][PTO until March 2nd]]

Sounds like a cubeb issue.

Comment 3

[Paul Adenot (:padenot)]

Reporter, can you please try to record a profile, using the Firefox profiler, as shown in this video: https://blog.paul.cx/post/profiling-firefox-media-workloads/#the-media-preset (text information just below the video). Please make sure to choose the Media profiler preset to we have all the right info.

Try to fast forward in the video a number of times, waiting each time a few seconds until it works.

Can you also attach the raw data you find in about:support (type this in the address bar) to this bug? This will give us all the info to diagnose this properly. Thanks!

Comment 4

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:kinetik, since the bug has recent activity, could you have a look please?

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