Bug 256378

Summary: REGRESSION(2.41.x): [GTK] Extreme flickering on cnn.com
Product: WebKit Reporter: Michael Catanzaro <mcatanzaro>
Component: WebKitGTKAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WORKSFORME    
Severity: Normal CC: bugs-noreply, cgarcia, mcatanzaro
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Description Michael Catanzaro 2023-05-05 10:33:47 PDT 
Since one of our 2.41 releases, we now occasionally have extreme flickering on cnn.com, e.g. on https://www.cnn.com/europe/live-news/russia-ukraine-war-news-05-05-23/index.html. It's probably related to use of dmabuf, but it only occurs occasionally and I have not found a reproducer.

I took a screencast but surprisingly ***the bug was not visible in the screencast*** so no point in attaching it here. The mutter screen recorder sees everything as if it were fine.
Comment 1 Michael Catanzaro 2023-05-30 06:27:03 PDT 
I wonder if this could be fixed by https://github.com/WebKit/WebKit/pull/14474?
Comment 2 Carlos Garcia Campos 2023-05-30 06:31:55 PDT 
Maybe, it would be great if you could try it out.
Comment 3 Michael Catanzaro 2023-05-30 06:44:41 PDT 
That's not possible, because this bug happens too rarely to know whether it has been fixed. In fact, thinking about it now, I'm not sure the last time I saw this. It's possible that it's already fixed somehow.

I'm going to just close this and will reopen if I see it again.