279486 - links leave trails when hovered and then unhovered

Status: RESOLVED WORKSFORME

(Core :: Web Painting, defect)

Description

[Sergey Sokoloff]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

When I move my mouse cursor off a hyperlink, it (the hyperlink) leaves a 1px
vertical line to its left. It's better to explain graphically, so I'll attach an
animated illustration.

Reproducible: Always

Steps to Reproduce:
1. Visit http://www.alistapart.com/articles/dynatext/
2. Hover the leftmost hyperlinks (Dynamic Text Replacement, or Stewart
Rosenberger) with your mouse cursor.
3. Move your cursor off.
4. Watch for strange gray 1px-wide vertical trails left to the left of links.
5. Alt+Tab from Firefox, Alt+Tab back to Firefox, the trails are mysteriously
gone! (i. e. the bug is autofixing when the whole windows repaints itself)
Actual Results:  
See the GIF animation attached to this bug.

Expected Results:  
The software should not have painted the gray vertical line borders of links.

I've scanned the Bugzilla database via the following query:
https://bugzilla.mozilla.org/buglist.cgi?bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&field0-0-0=product&type0-0-0=substring&value0-0-0=link&field0-0-1=component&type0-0-1=substring&value0-0-1=link&field0-0-2=short_desc&type0-0-2=substring&value0-0-2=link&field0-0-3=status_whiteboard&type0-0-3=substring&value0-0-3=link&field1-0-0=product&type1-0-0=substring&value1-0-0=hover&field1-0-1=component&type1-0-1=substring&value1-0-1=hover&field1-0-2=short_desc&type1-0-2=substring&value1-0-2=hover&field1-0-3=status_whiteboard&type1-0-3=substring&value1-0-3=hover

18 bugs found, but nothing similar to this one.

Setting severity to trivial (i.e. such as a misaligned text).

Comment 1

[Sergey Sokoloff]

Attachment: Animated captured screens illustating the bug effect

The above mentioned animated GIF illustration, which is much more useful to
describe the bug visually instead of less helpful verbal descriptions.

Comment 2

[Sergey Sokoloff]

Hint: the effect is unique to A List Apart website, or at least I did not seen
anything similar in the Web lately. But:

1) since changing active window eliminates the observing effect, it's a bug;

2) since it can be captured via PrtScr key, it's not a videocard bug, but rather
a one of Firefox painting.

Another hint: I have DirectX 9.0c installed, if it's relevant to this effect.

Comment 3

[Mats Palmgren (inactive)]

WFM, 2005-01-22-05 trunk Linux.

Sergey, does the bug occur in a recent nightly build?
ftp://ftp.mozilla.org/pub/mozilla.org/mozilla/nightly/latest-trunk/
ftp://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/

Comment 4

[Ben Fowler]

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b) Gecko/20050124
Firefox/1.0+

(Today's Build) WFM

Comment 5

[Sergey Sokoloff]

Probably a Windows-only problem, huh?

I won't be able to try a nightly build until February.

Comment 6

[Sergey Sokoloff]

WFM in Deer Park Alpha 1 -- Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
rv:1.8b2) Gecko/20050531 Firefox/1.0+

Closing bug.