Closed Bug 449969 Opened 16 years ago Closed 15 years ago

Rendering error: overlapping characters in huge fonts

Categories

(Firefox :: General, defect)

3.0 Branch
x86
Linux
defect
Not set
normal

Tracking

()

RESOLVED WORKSFORME

People

(Reporter: alex, Unassigned)

References

()

Details

Attachments

(3 files)

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008072820 Firefox/3.0.1
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008072820 Firefox/3.0.1

Huge fonts are render in such a way that several starting characters from a line are drawn on the same place without any offset!

I made a simple page to demonstate the bug:
http://kapranoff.ru/~kappa/sizebug.html

The screenshot of this page displayed in my browser is attached.

Looks like fonts sized in a narrow corridor around 200px are affected.

Reproducible: Always

Steps to Reproduce:
1. Size a font via CSS property font-size to 200px

Actual Results:  
Bad rendering
Version: unspecified → 3.0 Branch
Attached image Screenshot
The bug is also present in XUL pages.
I did two additional checks.

This bug is not due to some extensions -- I started with an empty profile.
This bug is not present on Windows XP.
Another check -- the bug IS present in Firefox 2.0.0.16 too.
Bug is present in:
Linux version of Firefox 2.0.0.16 (ubuntu build)
Linux version of Firefox 3.0.1 (ubuntu build)
Linux version of Firefox 3.0.1 (Firefox official build)

Bug is not present in:
Windows version of Firefox 2.0.0.16
Windows version of Firefox 3.0.1


I noted that the errors between the official build and the ubuntu build are different. 
Attachment in next message.
The image posted already looks like the ubuntu build error. 
This image shows the official firefox build with a slightly different error.
I noticed that the rendering is temporarily fixed if you select the right part of a line with your mouse. This is a screenshot. After clearing the selection (by clicking a mouse e.g.) the glitch returns.
I'm happy to announce that I don't see this bug any more in official Ubuntu 8.10 Firefox (3.0.6)!
Status: UNCONFIRMED → RESOLVED
Closed: 15 years ago
Resolution: --- → WORKSFORME
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