212066 - background-attachment:fixed causes jerking scrolling

Status: VERIFIED DUPLICATE of bug 90198

(SeaMonkey :: General, defect)

Description

[Marcel Turino]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5a) Gecko/20030603
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5a) Gecko/20030603

First, please visit the sites and scroll down.

http://marrr.kicks-ass.org/with.html
http://marrr.kicks-ass.org/without.html

On my Mozilla version (2003060322) the version with
"background-attachment:fixed" causes a "jerking scrolling". The version
"without.html" is nothing different, but the "background-attachment:fixed"
removed. It doesn't even look different...

Maybe there's a too CPU intensive routine causing that problem.

Reproducible: Always

Steps to Reproduce:
1.Visit the site and scroll down. :)

Actual Results:  
"Jerking Scrolling" :)
Looks like because of CPU overload.

Expected Results:  
"Smooth Scrolling"

Comment 1

[Aaron Kaluszka]

Don't see the problem.  Can you try a newer build?

Comment 2

[Marcel Turino]

I downloaded and tried the 20030624 now and got the same problem...

Kernel 2.4.18 (SuSE)
Qt: 3.1.1
KDE: 3.1.0
gcc 2.95.3
glib 1.2.9 & 2.0

Anything else important I forgot?

Comment 3

[Marcel Turino]

Of course I forgot:
AMD 1600+
512 MB DDR Ram
GeForce 2 GTS

Comment 4

[dave]

I see the difference. Definite jerkiness  on the with page (but only mildy annoying)

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030612
on WinXP, 500MHz PIII, 512MB RAM

Comment 5

[Boris Zbarsky [:bzbarsky]]

This is already filed.  Please find the original (it should be assigned to
roc+moz) and mark this duplicate.

Comment 6

[Frederic Bezies]

It seems to be bug 90198 = "Fixed background makes scrolling painfully slow"

Marking this bug as duplicate of 90198. Feel free to change bug number if I made
a mistake.

*** This bug has been marked as a duplicate of 90198 ***

Comment 7

[Aaron Kaluszka]

v