Closed Bug 1864307 Opened 1 year ago Closed 9 months ago

flashes green video facebook and twitch

Categories

(Core :: Graphics: WebRender, defect)

Product:
Core
Component:
Graphics: WebRender
Version:
Firefox 121
Type:
defect

Tracking

()

Status:
RESOLVED INCOMPLETE

People

(Reporter: fejateamo, Assigned: sotaro)

References

Details

Attachments

(3 files, 1 obsolete file)

Gravando 2023-11-11 214538.mp4
8.57 MB, video/mp4
Details
this should have an attachement of the troubleshooting information
50.31 KB, text/plain
Details
raw data
60.86 KB, text/plain
Details

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Steps to reproduce:

Hello, I found a bug that occurs in stable and Nightly, whenever I skip some stories in the Facebook feed, a green stripe appears. I recorded a video to show how it happens and I even manage to get around starting a recording and stopping it as I show in the video, this bug It also happens on Twitch when you change channels and the video starts with a green flash. I saw someone on Reddit with the same problem, I hope this video helps you improve your browser, thank you.

Actual results:

flash green

Expected results:

no flash green

Summary: green video facebook and twitch → Flash green video facebook and twitch
Summary: Flash green video facebook and twitch → flashes green video facebook and twitch

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

Component: Untriaged → Graphics: WebRender
Product: Firefox → Core

This is happening for me to, when a video loads sometimes it will flash green exactly like in the video (the time the green is visible varies slightly), but only happens at the initial loading of a video. most noticeable for me when switch between twitch streams, but i encountered this also on YT and other videos loading within FF.
this only happens with hardware acceleration enabled. i am on win10 with a 4080 RTX nvidia GPU, everything with the latest updates and drivers.

i tried reproducing the green flash in other browsers (chrome, opera) with and without their respective "hardware accelerations" enabled, but this is only happening in FireFox.

video demonstrating the randomness of the green flash. it covers the whole area of the video player and only happens on initial loading randomly.
the original video file was too large to attach directly, so i hope the link works:

https://streamable.com/65onp3

sorry for the bad video quality. as mentioned above, these green flashes will disappear if "hardware acceleration" is turned off, but they do not appear in other browsers with hardware acceleration activated.

Thanks for the report!
Can you go to about:support, and "Copy raw data to clipboard", and add it as an attachment here?

Flags: needinfo?(fejateamo)

You as well, decifratz, please!

Flags: needinfo?(decifratz)

S2 while we investigate, since this is high-profile sites with multiple reporters.

@gw Anything jump out to you?

@sotaro Is there anything changing with video playback on Windows recently that might cause this?

Severity: -- → S2
Flags: needinfo?(sotaro.ikeda.g)
Flags: needinfo?(gwatson)

Nothing obvious that I can think of, but once we get the about:support that might offer some clues.

Flags: needinfo?(gwatson)

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}

Flags: needinfo?(fejateamo)
Attached file raw data —

(In reply to Kelsey Gilbert [:jgilbert] from comment #5)

You as well, decifratz, please!

sorry, forgot to reply to your request message, the needed file is attached above!

Flags: needinfo?(decifratz)

Hi Fernando and decifratz, can you attach Firefox Profiler with Media setting when the problem happens?

Flags: needinfo?(fejateamo)
Flags: needinfo?(decifratz)

(In reply to Sotaro Ikeda [:sotaro] from comment #12)

Hi Fernando and decifratz, can you attach Firefox Profiler with Media setting when the problem happens?

https://share.firefox.dev/40PVrMD

hello!

not sure if i done it correctly, i tried recording a short profile. during this i switched between several different twitch streams, which gave green flashes on loading (not every single time)

just to mention it: this is happening in any videoplayer on any website randomly, but only when the videofile is loading (so at the beginning, but also when you skip foward etc). sometimes it does not happen at all.

Flags: needinfo?(decifratz)

Hi decifratz, thank you! Can you also take Firefox Profiler with Graphic setting? Thank you for taking the profiler.

Flags: needinfo?(decifratz)

(In reply to Sotaro Ikeda [:sotaro] from comment #14)

Hi decifratz, thank you! Can you also take Firefox Profiler with Graphic setting? Thank you for taking the profiler.

https://share.firefox.dev/46lExqB

hello, this is a short profiler recording with graphic setting. during this recording i switch between different twitch live-video streams and the green flash appears on loading several times

Flags: needinfo?(decifratz)

https://share.firefox.dev/49HrVwR i did it here too using the graphical configuration the bug appears if i use the default one the bug disappears and only comes back if i restart the browser

Flags: needinfo?(fejateamo)

Chromium and Firefox use different APIs for hardware video decoding. Chromium uses low level Windows media API for hardware video decoding. Firefox use high level Windows media API for hardware video decoding. That might affect to the problem.

From the symptom, I wonder if the driver might have a problem or Bug 1638709 might affect to the problem.

Summary of about:support of Fernando and decifratz

  • Fernando da rocha

    • video rendering: use video overlay with hardware decoded video
    • Reuse decoder device: available
    • Hardware decoded video zero copy: blocked
    • DisplayCount: 2
    • GPU: NVIDIA GeForce RTX 2060
    • "driverVersion": "31.0.15.4608"
    • "driverDate": "11-1-2023"
    • osVersion: "Windows_NT 10.0 22635"

  • decifratz

    • video rendering: use video overlay with hardware decoded video
    • Reuse decoder device: available
    • Hardware decoded video zero copy: blocked
    • DisplayCount: 2
    • GPU: NVIDIA GeForce RTX 4080
    • "driverVersion": "31.0.15.4601"
    • "driverDate": "10-26-2023"
    • osVersion: "Windows_NT 10.0 19045"

Hi Fernando and decifratz, can you check if any of the followings address the problem? Thank you.

  • [1] Disable Reuse decoder device
    • set pref gfx.direct3d11.reuse-decoder-device to false in about:config
    • Restart Firefox
  • [2] Disable video overlay of hardware decoded video
    • set pref gfx.webrender.dcomp-video-hw-overlay-win to false in about:config
    • Restart Firefox
  • [3] Disable WebRender native compositor
    • set pref gfx.webrender.compositor to false in about:config
    • Restart Firefox
  • [4] Disable DirectComposition
    • set pref gfx.webrender.dcomp-win.enabled to false in about:config
    • Restart Firefox
Flags: needinfo?(fejateamo)
Flags: needinfo?(decifratz)

(In reply to Sotaro Ikeda [:sotaro] from comment #18)

Hi Fernando and decifratz, can you check if any of the followings address the problem? Thank you.

  • [1] Disable Reuse decoder device
    • set pref gfx.direct3d11.reuse-decoder-device to false in about:config
    • Restart Firefox
  • [2] Disable video overlay of hardware decoded video
    • set pref gfx.webrender.dcomp-video-hw-overlay-win to false in about:config
    • Restart Firefox
  • [3] Disable WebRender native compositor
    • set pref gfx.webrender.compositor to false in about:config
    • Restart Firefox
  • [4] Disable DirectComposition
    • set pref gfx.webrender.dcomp-win.enabled to false in about:config
    • Restart Firefox

I've tested all the commands and apparently they all solve the problem

Flags: needinfo?(fejateamo)

(In reply to Sotaro Ikeda [:sotaro] from comment #18)

Hi Fernando and decifratz, can you check if any of the followings address the problem? Thank you.

  • [1] Disable Reuse decoder device
    • set pref gfx.direct3d11.reuse-decoder-device to false in about:config
    • Restart Firefox
  • [2] Disable video overlay of hardware decoded video
    • set pref gfx.webrender.dcomp-video-hw-overlay-win to false in about:config
    • Restart Firefox
  • [3] Disable WebRender native compositor
    • set pref gfx.webrender.compositor to false in about:config
    • Restart Firefox
  • [4] Disable DirectComposition
    • set pref gfx.webrender.dcomp-win.enabled to false in about:config
    • Restart Firefox

i also tested each setting individually, and all 4 resulted in no visible green flashes.

i wonder which of these 4 settings has the "least impact" on performance and other parts of firefox i wonder, but i guess that is too hard to determine. i tried to measure GPU load during each test, but could not see much difference.

thank you for taking the time to investigate the green flashes!

Flags: needinfo?(decifratz)

Hi Fernando and decifratz, can you also check if the following build including D194714 addresses the problem for you? Thank you.

https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/YkPp40JoQGS6sxHC3TpCvQ/runs/0/artifacts/public%2Fbuild%2Ftarget.zip

https://treeherder.mozilla.org/jobs?repo=try&selectedTaskRun=YkPp40JoQGS6sxHC3TpCvQ.0&revision=99d9cb86ccc5773dbaa6361999895bd80af010f5

Flags: needinfo?(fejateamo)
Flags: needinfo?(decifratz)

(In reply to Sotaro Ikeda [:sotaro] from comment #22)

Hi Fernando and decifratz, can you also check if the following build including D194714 addresses the problem for you? Thank you.

https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/YkPp40JoQGS6sxHC3TpCvQ/runs/0/artifacts/public%2Fbuild%2Ftarget.zip

https://treeherder.mozilla.org/jobs?repo=try&selectedTaskRun=YkPp40JoQGS6sxHC3TpCvQ.0&revision=99d9cb86ccc5773dbaa6361999895bd80af010f5

I tested this build and the bug still persists

Flags: needinfo?(fejateamo)
See Also: → 1865928

Thank you for checking! It seemed that "Reuse decoder device" needs to be blocked on some NVIDIA GPUs on Windows 10.

Assignee: nobody → sotaro.ikeda.g
Flags: needinfo?(sotaro.ikeda.g)

sorry i was not able to provide further feedback to the problem, since i got sick

Flags: needinfo?(decifratz)

Hi decifratz, no problem :)

Attachment #9365523 - Attachment is obsolete: true

Close bug as incomplete since no further feedback from the reporter. The problem might be related to Bug 1817617.

Status: UNCONFIRMED → RESOLVED
Closed: 9 months ago
Resolution: --- → INCOMPLETE
See Also: → 1817617
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