Bug 255489

Summary:

REGRESSION(2.41.2): [GTK] Flickering on cnn.com

Product:

WebKit

Reporter:

Michael Catanzaro <mcatanzaro>

Component:

WebKitGTK

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED DUPLICATE

Severity:

Normal

CC:

bugs-noreply, kdwkleung, mcatanzaro

Priority:

Version:

WebKit Nightly Build

Hardware:

OS:

Linux

See Also:

https://bugs.webkit.org/show_bug.cgi?id=255082

Attachments:

Description	Flags
Screencast	none
Screencast	none
Another screencast	none

Description Michael Catanzaro 2023-04-15 11:18:55 PDT

Created attachment 465936 [details]
Screencast

Since 2.41.2, images flicker on cnn.com. See attached video.

This is different from bug #253807 because (a) I have not manually upranked gst-va, and (b) this did not occur prior to 2.41.2.

Comment 1 Kdwk 2023-04-16 02:30:22 PDT

I am unable to reproduce this issue. Tested on WebKitGTK 2.41.2/ Epiphany Technology Preview

Comment 2 Michael Catanzaro 2023-04-16 06:30:20 PDT

OK, it's not just images. Another screenshot attached: this time, a chunk of the headlines are flickering.

Comment 3 Michael Catanzaro 2023-04-16 06:30:46 PDT

Created attachment 465938 [details]
Screencast

Comment 4 Michael Catanzaro 2023-04-16 06:31:28 PDT

Created attachment 465939 [details]
Another screencast

And now the entire web view is flickering

Comment 5 Michael Catanzaro 2023-04-17 08:17:34 PDT

I can no longer reproduce this today, after reverting the change from bug #255082. It seems truly incredible that this flickering could be caused by a font size calculation change, but the bug was pretty severe yesterday and gone today, and there's been only one change, and we know it caused spectacular rendering errors on reddit to, so... there we have it.

Comment 6 Michael Catanzaro 2023-04-17 08:17:41 PDT


*** This bug has been marked as a duplicate of bug 255488 ***