607386 - [d2d]Tab switching/Page Scrolling very laggy

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[mozilla]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.11) Gecko/20101012 Firefox/3.6.11
Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101026 Firefox/4.0b8pre

When opening tabs and then the selected page. When viewing the selected page, try changing tabs or scrolling the page. As you can see tab switching and page scrolling with the mousewheel is very laggy. Scrolling using the scrollbar is fine.

I've started to see a few ads on various websites cause this lagging behaviour.

Reproducible: Always

Steps to Reproduce:
1.Make sure no ads are blocked when testing (Clean profile)
2.Open 2 or more tabs
3.Visit the URL test case provided and stay on the page
4.While page is loading try scrolling with the mouse wheel or changing tabs
Actual Results:  
Tab switching and page scrolling is very laggy

Expected Results:  
Tab switching and page scrolling via mouse wheel should not lag

This setup the tab switching and page scrolling are fine:
Direct2D Enabled false
DirectWrite Enabled false
GPU Accelerated Windows 0/1


This setup causes the lagging:
Direct2D Enabled true
DirectWrite Enabled true
GPU Accelerated Windows 1/1 Direct3D 10

Comment 1

[redsign]

Confirmed. I see this also on some sites with flash objects on them. Makes the whole UI feeling sluggish, even the higlighting in the menus is lagging behind the mouse cursor.

Comment 2

[Csaba Kozák [:WonderCsabo]]

CC the graphics guys.

Comment 3

[Alice0775 White]

If I set gfx.direct2d.disabled = true , the problem does not happen.

Graphics        
Adapter Description: ATI Radeon HD 4300/4500 Series
Vendor ID: 1002
Device ID: 954f
Adapter RAM: 512
Adapter Drivers: aticfx64 aticfx64 aticfx32 aticfx32 atiumd64 atidxx64 atiumdag atidxx32 atiumdva atiumd6a atitmm64
Driver Version; 8.782.0.0
Driver Date: 9-28-2010
Direct2D Enabled: false <<
DirectWrite Enabled: true
GPU Accelerated Windows: 1/1 Direct3D 9

Comment 4

[Dietrich Ayala (:dietrich)]

Bas, can you route this to the proper component?

Comment 5

[Brian Carpenter [:geeknik]]

Tab switching is fine here, but scrolling on Twitter.com is horribly slow. I have smooth scrolling off.

Graphics
Adapter Description NVIDIA GeForce 7950 GT
Vendor ID 10de
Device ID 0295
Adapter RAM 256
Adapter Drivers nvd3dumx,nvd3dum
Driver Version 8.17.12.5896
Driver Date 7-9-2010
Direct2D Enabled false
DirectWrite Enabled false
GPU Accelerated Windows 1/1 Direct3D 9

Comment 6

[[not reading bugmail]]

This bug is about D2D being enabled causing the slowdown with flash ads, and actually about D3D9 or D3D10, interesting.

Comment 7

[Bas Schouten (:bas.schouten)]

Presumably this is similar to several of the D2D/flash with wmode transparent performance issues.

Comment 8

[Joe Drew (not getting mail)]

If this didn't get a lot better in recent nightlies, please renominate. Async plugin layers should have made this a lot better.

Comment 9

[Marco Castelluccio [:marco]]

I don't see the issue with Firefox 10. Could someone confirm so we can close as WORKSFORME?

Comment 10

[Alice0775 White]

 No problem too.Confirmed on Firefox9.0beta and later.