122063 - [porn] Severe visual corruption on this page (artifacts)

Status: RESOLVED DUPLICATE of bug 132448

(Core Graveyard :: GFX, defect, P3)

Description

[pronzilla]

[note for the sensitive: this page contains porn]

About a page down from the top, this page suffers really bad visual corruption
when scrolling.  Forcing the window to repaint will make things look tidy, but
scrolling messes it up again.

Comment 1

[pronzilla]

Attachment: Screenshot (167kb)

This screenshot contains a few fragments of jumbled-up porn images, but nothing
too
graphic.  Unless you're traumatised by graphical garbage, anyhow.

Comment 2

[Karl Johan Kleist]

Reporter: Please always state which "Build ID" you are using,
as found in the title bar of the Mozilla window.

Scrolling works fine for me, using 2002 01 24 03 / Windows 2000.

Comment 3

[André Dahlqvist]

I see this too with build 2002-01-25-15 on Linux. Scroll all the way down on the
page, and then all the way back up. The upper part of the page is then badly
corrupted just as in attachment 66662 [details].

This could be related to bug 83289.

Comment 4

[André Dahlqvist]

By the way, from pronsilla's screenshot it can be seen that he is running a
build from 2002-01-24-03.

Comment 5

[André Dahlqvist]

Attachment: Screenshot showing what happens if I place the mouse over the first 4 pictures

You don't even need to scroll on the page to see this. Just move your mouse
over the images and the image under your mouse will be corrupted.

Comment 6

[Sören 'Chucker' Kuklau (gone)]

Can't reproduce this problem under 2002-01-26-09, Windows XP Pro.

Comment 7

[pronzilla]

oops.  Apologies about the build number.  I'll add that this problem has been
present for a few months, at least.  It's not a recent regression.

André, I can't be certain that this isn't bug 83289, but it doesn't look like it.

Comment 8

[Niels Aufbau]

Attachment: testcase

Things to notice about the testcase:
* The height of the area with drawing problems is related to the height of the
iframe.
* The area with drawing problems is a fixed height above the iframe.
* Several margin=0 and border=0 properties must be present for the bug to
occur.
* The average color of the "random stuff" is the average color of your theme. 
Try switching between Modern and Classic to see this effect.
* If you bring up a context menu in the affected area, and then close the
context menu, the context menu remains in its position but becomes smeared.

Comment 9

[Niels Aufbau]

Let's try the compositor (low-level painting) component.

[e-mail], is your email address based on the name of the Pornzilla
project (http://mywebpage.netscape.com/aufbau01/), or is it just a coincidence?
 Either way, thanks for testing Mozilla with porn sites and filing bugs.

Comment 10

[André Dahlqvist]

Here is another testcase:

http://www.bigbrother.se/scripts/forum/forum_show.php

Go to the page and mark the titles of some of the posts. The corruption will
look like the below attached screenshot.

Comment 11

[André Dahlqvist]

Attachment: Screenshot showing corruption on another site.

Comment 12

[pronzilla]

I can't reproduce the corruption on Andre's URL (win98, 2002021203), but I can
still see the problem on the original URL

Comment 13

[Kevin McCluskey (gone)]

Bulk moving Moz1.2 bugs to future-P3. I will pull from this list when scheduling
post Mozilla1.0 work.

Comment 14

[André Dahlqvist]

No longer see the corruption on the original URL with 2002-03-19-06 on Linux.

Can someone verify?

Comment 15

[Sören 'Chucker' Kuklau (gone)]

Confirmed: 2002-03-18-03, Win32, Windows XP Pro.

Comment 16

[André Dahlqvist]

Well Sören, you couldn't reproduce the problem in the first place, so it would
be best if someone else checked it.

Comment 17

[Sören 'Chucker' Kuklau (gone)]

You're right, sorry. *goes off blushing*

Comment 18

[pronzilla]

Ooo.  Looks like someone's been busy.  WFM, win98SE, 2002031803.

WFM from Reporter (me) and another person who also saw the problem,
-> Resolved Fixed, with thanks to the anonymous coder who fixed this by accident...

Comment 19

[Niels Aufbau]

I still see this bug at http://www.pornfreemovies.com/ and at the testcase.  
2002040303 on 
Windows 98.

Comment 20

[pronzilla]

WinXP, 20020709 trunk : www.pornfreemovies.com and testcase both WFM.  Is anyone
out there still seeing this?

Comment 21

[Cees T.]

Attachment: Screenshot while loading site + screenshot of testcase

WFM (mouseover too) with trunk 2002070504 on WinME, but the frame near the
bottom appears corrupted while loading and I can scroll it vertically though it
doesn't have a scrollbar. The testcase messes up big time though.

Other times I've seen corruption was while scrolling Bugzilla comments, where
the CC: box seemed to have an echo a few pages down.

Comment 22

[pronzilla]

> Other times I've seen corruption was while scrolling Bugzilla comments, where
> the CC: box seemed to have an echo a few pages down.

THAT is bug 51385

Comment 23

[Cees T.]

I see more corruption at http://www.codeproject.com/csharp/remotingcallbacks.asp

Trunk 2002072718 on winME.

Comment 24

[Andrew Schultz]

testcase also shows corruption on linux trunk build 20020825
OS=>All

Comment 25

[TGOS]

Added artifacts to summary, because that's what I was searching for when I
looked for similar bugs, but I haven't found this one, that's why I might have
produced a duplicate. Artifacts is what most people use to describe video
rendering garbage that looks like that.

Comment 26

[Daniel Mario Vega (Restore MNG Support --> #18574)]

Perhaps bug 162886 is the same as this one. See also attachment 95428 [details] .

Comment 27

[[e-mail]]

Using Mozilla1.1 I am seeing the problem with
http://www.codeproject.com/csharp/remotingcallbacks.asp
I have seen similar artefacts at various occasions before, using
other builds of Mozilla, but they usually are only occuring transiently,
during loading of the page, then disappeared.
With this page, I am getting various degrees of distortedness, depending
on my scrolling speed. However to see it I have to drag the scrollbar-thingie
or use the scrollbar-arrows. Jump-scrolling using pgup/pgdn or by clicking
in the empty part of the scrollbar does not show the problem as long 
as the mouse cursor is outside of the area. But then, simply moving
the mouse cursor over the page will make new distortions show up.

 When I press the 3rd button to invoke the
contect menu, even that is sometimes shown in a distorted way. 

When I cover the distorted frame with another window, then resurface it
no redraw seems to happen.

Finally, a local copy of this page created with "save as web page, complete"
shows the same symptoms, so an archive of this could serve as a 
persistent testcase.
I am unable to see to problem in the attached "testcase", or at the original
site (though I do see a couple of strange things there, but that is a 
different story and probably not a Mozilla bug).   

BTW I am not seeing anything odd with the URL from bug 162886.

Comment 28

[Cees T.]

Bug 132448 could be related.

Comment 29

[Andrew Schultz]

more specifically -- this IS bug 132448.

bug 132448 and all its dupes have been reported on Linux, so I figured it was
Linux-only.  Apparently, it is not.

marking this as a dupe since bug 132448 has a bit more info on what is going
wrong and has some dupes (even though this bug is older)

*** This bug has been marked as a duplicate of 132448 ***