375400 - Background image goes up and down when scrolling with background-attachment:fixed;

Status: RESOLVED DUPLICATE of bug 324819

(Core :: Web Painting, defect)

Description

[Tommy]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3) Gecko/20070322 GranParadiso/3.0a3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3) Gecko/20070322 GranParadiso/3.0a3

See URL; the background image jumps up and down where it didn't in FF 2. The background is set on BODY and has background-attachment:fixed;. See http://tommy.ech-wel.nl/wp-content/themes/vintage/style.css for stylesheet.

Reproducible: Always

Steps to Reproduce:
See URL, scroll
Actual Results:  
Background image jumps up and down when scrolling

Expected Results:  
Background image smoothly scrolls along with the rest of the content

Comment 1

[Ria Klaassen (not reading all bugmail)]

Something that regressed on 23 Feb 2007 in any case.

Comment 2

[Ria Klaassen (not reading all bugmail)]

Could be a duplicate of Bug 372039 and I think it is.

Comment 3

[Tommy]

Isn't this something that really should be fixed? A lot of sites use a fixed background with CSS and this flickering is just too irritating... 

Comment 4

[Martijn Wargers (dead)]

It's probably a duplicate of bug 372039 and that bug will get fixed in the 1.9 timeframe.

Comment 5

[Jan Skrasek]

I have same problem! I thing that bug is not duplicate of 372039 ;)

Comment 6

[Eli Friedman]

It doesn't really matter if it's a dup; the cause is exactly the same, and both should get fixed by bug 374980.  (The cause is that I removed some code that disabled bitblt scrolling with fixed backgrounds.)