152005 - Vertical scaling drop-outs

Status: RESOLVED INCOMPLETE

(Core :: Graphics: ImageLib, defect)

Description

[Adam D. Moss]

Haven't seen these for a long while, but the url
http://people.netscape.com/rginda/warpcore/warpcam.html
exhibits them: horizontal lines across the image which
disappear after the window is obscured and revealed.

The page uses 'width=100%'; my window is sized at
1206x932.  Will attach a partial screenshot.

Occurs about 40% of the time on my 56.6K line (I think
that line speed is a major factor).

This is with trunk as of writing.

Comment 1

[Adam D. Moss]

Attachment: Partial screenshot of the artifacts.

Comment 2

[Adam D. Moss]

Removing 'are back' from the summary since I think
that implies that this is a recent regression which
isn't necessarily the case.

Comment 3

[Nick Kocharhook]

Is this a duplicate of bug 83289?

Comment 4

[Adam D. Moss]

Don't know.  This bug has nothing to do with scrolling; the
problem is visible while just sitting looking at the page
load.

Secondly, that bug is marked FIXED and my eyes say that
this bug isn't.

Comment 5

[Adam D. Moss]

Still seeing this intermittantly on this test case.

Comment 6

[Adam D. Moss]

(with trunk build)

Comment 7

[Brian 'netdragon' Bober]

Is bug 190881 related to this?

Comment 8

[Adam D. Moss]

Not unlikely... the symptoms sound the same.

Comment 9

[Benoit Jacob [:bjacob] (mostly away)]

The testcase on netscape.com no longer exists -> incomplete.