[Bug 107992] xf86-video-amdgpu-18.1.0: video freezes in firefox

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107992

--- Comment #3 from Alexander Tsoy <alexander at tsoy.me> ---
(In reply to Dudu Edri from comment #2)
> The freezes only happen when hardware acceleration is enabled in Firefox
> (OpenGL under "Compositing" in about:support. It could be enabled by
> changing "layers.acceleration.force-enabled" to "true" in about:config).

Confirming this. Can't reproduce the bug with hardware compositing disabled
(layers.acceleration.force-enabled = false).

> 
> As for your question, the whole Firefox window becomes unresponsive for a
> second or two.

I sometimes have much longer freezes.


(In reply to Michel Dänzer from comment #1)
> I'm unable to reproduce the problem. Please attach the following:
> 
> * The output of about:support in Firefox
> * The output of glxinfo, xrandr --verbose and dmesg

Do you still need this info?

> Can you provide an URL of a video which reproduces the problem?

I did bisect using the following video:
https://www.youtube.com/watch?v=jJ_dPh6wcA0

> Does it only happen if the video is (not) in fullscreen?

Both fullscreen and non-fullscreen.

> How long after starting playback does it start freezing?

It's random. Maybe ~10 seconds.

> Does only the video itself freeze, or also the rest of the Firefox window,
> or even the whole desktop?

The whole firefox window. Not sure about the whole desktop - when I move mouse
to gnome shell panel firefox unfreezes.

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