1953502 - Video playback issues with RTX VSR enabled (Profile with log attached)

Status: UNCONFIRMED

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

Description

[t3rr4by73]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0

Steps to reproduce:

Watched a video , using NVIDIA VSR on 5080 enabled.

Actual results:

Choppy playback when cpu usage was 21% and gpu usage was 17%

Expected results:

Smooth playback

Firefox Log: https://share.firefox.dev/4hxNpPb

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Mayank Bansal]

Thanks for reporting! To help diagnose this issue better, please can you:

1. Type "about:support" in Firefox and copy-paste its contents here
2. Does this reproduce in a clean profile or Troubleshoot Mode?
3. If this used to work in an earlier version of Firefox, please do a bisection to find the exact change that caused this (https://mozilla.github.io/mozregression/)

Comment 3

[t3rr4by73]

Attachment: about support

Hi ,
Went from 2080ti to 5080 so didn't use VSR before.
This is the content dump you asked

Comment 4

[t3rr4by73]

Hi ,
Went from 2080ti to 5080 so didn't use VSR before.
This is the content dump you asked

Comment 5

[Andrew Osmond [:aosmond] (he/him)]

Ah seems like it may be related to bug 1952781.

Comment 6

[Andrew Osmond [:aosmond] (he/him)]

Does turning off VSR solve the playback issues in Firefox with the same GPU? You can disable by going to the NVIDIA Control Panel app, under "Video" / "Adjust video image settings", and then under "RTX Video enhancement", unchecking "Super resolution" and pressing apply.

Comment 7

[Andrew Osmond [:aosmond] (he/him)]

Also, if you could try disabling the support in Firefox by going to about:config, flipping the pref gfx.webrender.overlay-vp-super-resolution to false, restarting Firefox (for the setting to apply) and retrying, that would be great, thanks :).

Comment 8

[Andrew Osmond [:aosmond] (he/him)]

Any ideas sotaro? Maybe a recent driver regression?