1656777 - Green flicker in video when using hardware acceleration in Wayland

Status: VERIFIED DUPLICATE of bug 1645671

(Core :: Widget: Gtk, defect)

Description

[physkets]

Attachment: Information from the Graphics section of about:support

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:79.0) Gecko/20100101 Firefox/79.0

Steps to reproduce:

I'm using the wayland back-end enabled via environment variable and have widget.wayland-dmabuf-vaapi.enabled set to true.

Actual results:

When playing videos, they flicker a lot with green screens in-between.

When I disable that config option, it no longer flickers.

Comment 1

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

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 2

[physkets]

Also, the driver I'm using:

vainfo: VA-API version: 1.8 (libva 2.8.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Kaby Lake - 2.4.1

Comment 4

[physkets]

The green screen isn't just at the beginning, but through-out the playback, as an intermittent flicker, but ya, looks like it is a duplicate, because when I additionally toggle widget.wayland-dmabuf-video-textures.enabled to true, videos play fine.

Comment 5

[physkets]

Okay, maybe I said that too fast. The issue persists in-spite of that toggle