759187 - Ugly artifacts when resizing Firefox on Windows, especially with D3D-layers.

Status: RESOLVED WORKSFORME

(Core :: Graphics: Layers, defect)

Description

[Vladan Djeric (:vladan)]

When resizing Firefox on Windows, the resizing looks like it happens in uneven spurts and the area being re-sized often appears solid white. Resizing Firefox works fine on Mac.

Chrome and IE do a much better job resizing on Windows. You can do a simple comparison by loading a webpage, grabbing one edge of a browser window and quickly moving the edge back and forth. Firefox's resizing seems to happen the least smoothly and we get frequent flashes of white while resizing.

Comment 1

[Brian R. Bondy [:bbondy]]

Jim do you think this belongs in widget/win32?

Comment 2

[Jim Mathies [:jimm]]

flashes of white sounds like a d2d/gfx issue.

Comment 3

[Joe Drew (not getting mail)]

I am really surprised that we didn't have a bug on this already. This is something entirely related to our resize speed, AIUI; other browsers are faster than us at resizing = they have less white.

Comment 4

[Kelsey Gilbert [:jgilbert]]

How does this compare between hardware accel and non-accel?

Comment 5

[Vladan Djeric (:vladan)]

(In reply to Jeff Gilbert [:jgilbert] from comment #4)
> How does this compare between hardware accel and non-accel?

The issue almost completely disappears when acceleration is OFF

Comment 6

[Gregory Pappas [:gregp]]

Unable to reproduce.