Open Bug 1724799 Opened 2 years ago Updated 1 year ago

[WinArm64] WebRender issue on Adreno 618


(Core :: Graphics: WebRender, defect)

Firefox 90
Windows 10





(Reporter: vinceying113, Unassigned)


(Blocks 2 open bugs)



(1 file)

User Agent: Mozilla/5.0 (Windows NT 10.0; rv:90.0) Gecko/20100101 Firefox/90.0

Steps to reproduce:

Use Firefox on a Samsung Galaxy Book Go with a Snapdragon 7c and Adreno 618.

Actual results:

Periodically the browser will become unresponsive for several seconds and the screen will flash. After the flash, functionality will continue normally until the next unresponsive incident.

I have determined this is a WebRender issue because on force disabling WebRender and using the Direct3D 11 path, the issue does not occur.

Expected results:

Normal browsing.

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

Component: Untriaged → Graphics: WebRender
Product: Firefox → Core
No longer blocks: wr-adreno5xx6xx
OS: Unspecified → Windows 10
Hardware: Unspecified → ARM64

vinceying113, thank you for reporting. Can you attach about:support to this bug?

Flags: needinfo?(vinceying113)
Summary: WebRender issue on Adreno 618 → [WinArm64] WebRender issue on Adreno 618
Attached file About Support.txt

I attached about:support.

Flags: needinfo?(vinceying113)

Thank you for the about:support.

No longer blocks: video-perf

:vinceying113, are there STRs that could reproduce the problem easily? Does the problem happen with pref gfx.webrender.compositor = false in about:config?

Flags: needinfo?(vinceying113)

Them problem does not occur when WebRender is disabled. It should be able to be reproduced in general browsing. I don't think there needs to be any video playing in order to trigger the issue.

Flags: needinfo?(vinceying113)
Severity: -- → S3
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