292461 - Character spacing corrupted on inline style changes in OS X 10.4 (Tiger)

Status: RESOLVED DUPLICATE of bug 288047

(Core Graveyard :: GFX: Mac, defect)

Description

[Ian Brandt]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b2) Gecko/20050430 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b2) Gecko/20050430 Firefox/1.0+

I tried 1.0.3 and the 20050430 nightly on OS X 10.4 (Tiger) and both exhibit
character spacing problems when rendering bold fonts on seemingly any page. 
I'll attach a screen shot.  I only notice this on OS X 10.4, not 10.3.9.

Reproducible: Always

Comment 1

[Ian Brandt]

Attachment: Example of charcter spacing bug

Comment 2

[David Becker]

Attachment: More examples of text rendering problems

I have this problem too...

Comment 3

[David Becker]

After much hacking around, I got Firefox to compile under Tiger, on the thought
that some SDK modification might fix the text rendering problem.  No such luck,
a native Tiger build still exhibits the problem.  Also note that text in
<TEXTAREA> boxes is *really* messed up...

Comment 4

[Asaf Romano (gone)]

confirming, based on comments...

Comment 5

[Ian Brandt]

Attachment: Simplified test case

Comment 6

[Ian Brandt]

Attachment: Screenshot matching test case

Comment 7

[Ian Brandt]

Changed summary based on new understanding of the bug.

Also, I found Verdana exhibits the bug as well, so it's not just Arial as is
suggested in my test case.

Comment 8

[David Becker]

A workaround for this behavior is posted under
https://bugzilla.mozilla.org/show_bug.cgi?id=288047 and I've verified it works
for me too.  Check it out.

Comment 9

[Ian Brandt]

*** This bug has been marked as a duplicate of 288047 ***