288508 - background image in overflow:auto div flickers while scrolling when the div contains overflow:auto divs

Status: RESOLVED WORKSFORME

(Core :: Web Painting, defect)

Description

[Jasper de Vries]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050331 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050331 Firefox/1.0+

i'll add an example html page

Reproducible: Always

Comment 1

[Jasper de Vries]

Attachment: bug example

Comment 2

[Robert O'Callahan (:roc) (email my personal email if necessary)]

When did this regress?

Comment 3

[Jasper de Vries]

(In reply to comment #2)
> When did this regress?

I'm not sure if scrolling was ever smooth in this situation. I use 1.0.2 (win
XP) at work and it also flickers over there

Comment 4

[Joël Kuiper]

Attachment: testcase

Comment 5

[Boris Zbarsky [:bzbarsky]]

Huh.  canBitBlit is coming out 0 in nsScrollPortView::Scroll, which is correct.
 So I'm not sure why we're ending up with the weirdness we get...

Comment 6

[Boris Zbarsky [:bzbarsky]]

If this is a regression, see question in comment 2.

Comment 7

[José Jeria]

I am sorry for the confusion. 

I spend some time looking for when this regressed and it turns out that the
choppy scrolling I see on attachment 180391 [details] is a very fresh regression.
Scrolling is choppy in 20050510, but not 20050509. 

Should I file a new bug for that regression?

Comment 8

[Boris Zbarsky [:bzbarsky]]

Yes, please!  cc me and roc?

Comment 9

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b3) Gecko/20050714
Firefox/1.0+ ID:2005071411
WFM

Comment 10

[Jasper de Vries]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050718
Firefox/1.0+

The background still moves on my when you scroll. This isn't fixed yet.

Comment 11

[Sam]

http://www.beaver6813.com/temp/design

Another example of the lagging image :/ Seems to be a new problem...

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3

Comment 12

[AndrewM]

If I look closely, I guess I can see a tiny bit of flickering in the text when scrolling in the testcase. But I can see no flickering of the background image.

(In reply to comment #11)
> http://www.beaver6813.com/temp/design
> 
> Another example of the lagging image :/ Seems to be a new problem...

Can't see any lagging/flickering here, either. Can someone else reproduce on a recent trunk build?

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b3pre) Gecko/2007121305 Minefield/3.0b3pre ID:2007121305

Comment 13

[Jasper de Vries]

The image doesn't flicker in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5

Comment 14

[j.j.]

-> WORKSFORME

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b2pre) Gecko/20081011 Minefield/3.1b2pre