131107 - text content on pages damages sometime on scrolling

Status: RESOLVED DUPLICATE of bug 129400

(Core :: Layout, defect, P2)

Description

[Dmitry Morozhnikov]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9+) Gecko/20020312
BuildID:    2002031219

sometime on scrolling lines of text begin looks as font is damaged (shrinked).
if select such lines with mouse (forcing redraw them) -- then all being ok _for
selected lines_.

first seen in 0.9.7 and for 0.9.9.

Reproducible: Sometimes
Steps to Reproduce:
1. open some long page in browser
2. scroll it by lines or by scrollbar or by wheel.
3. look

Actual Results:  some lines are visually damaged.

Expected Results:  lines drawed correctly.

mostly standart redhat7.1, then 7.2

Comment 1

[Dmitry Morozhnikov]

Attachment: line corruption demonstration

Comment 2

[Peter Trudelle]

Anyone seeing this in current builds?

Comment 3

[Martin Macok]

Yes, I'm seeing this on 0.9.9 and current builds (trunk) too.
This off-by-one errors (horizontal lines missing) of fonts/images is reported on
different bugs at bugzilla.

(Mandrake 8.2 Linux)

Comment 4

[Andrew Hagen]

Possible duplicate of bug 83289. That bug is almost fixed.

Comment 5

[Peter Trudelle]

->layout

Comment 6

[Rutger van Oosten]

I get this in windows 2000 too (very often), with 0.9.9.

Comment 7

[karnaze (gone)]

Moving to future since it unlikely to get serious attention for m1.0.

Comment 8

[Martin Macok]

At least: this should be mentioned in m1.0 release notes with the hint that
changing DPI settings can workaround it.

Comment 9

[Andrew Hagen]

Marking as duplicate. If you feel this is wrong, feel free to reopen.

*** This bug has been marked as a duplicate of 129400 ***