105986 - Vertical black stripes making page unreadable

Status: RESOLVED WORKSFORME

(Core :: Graphics: ImageLib, defect)

Description

[Johan Walles]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:0.9.5) Gecko/20011011
BuildID:    2001101117

I have a hard time reading some text on the above URL because it is covered with
vertical black stripes.


Reproducible: Always
Steps to Reproduce:
1. Go to the above URL
2. Scroll the page up and down some


Actual Results:  Text revealed by scrolling is covered with vertical black stripes.


Expected Results:  Text should have been rendered in a readable fashion.

This bug is possibly related to bug 101829 and bug 80292.  Also it is probably a
duplicate of bug 101907.  As per Olivier Cahagne's comment from 2001-10-06 13:44
I file this new bug anyway.

Comment 1

[Johan Walles]

Attachment: Screenshot of Mozilla showing URL with black stripes

Comment 2

[ron]

wfm with build 2001101908 linux

Comment 3

[Bob Warren]

I have not had this problem with any new .9 build even though I have the problem
with bug #80292.

Comment 4

[Jason Johnston]

I can confirm this on Win2K build 2001101803.  I also suffer from bug 80292.  My
workaround for 80292 is to bump hardware acceleration down a notch, and it
clears up both this bug and 80292 together.

I'd say that either this is a dupe of bug 80292 or they both stem from the same
root imagelib problem.

Confirming.
--> imagelib

Comment 5

[R.K.Aa.]

does this also happen with "Display resolution" set to 96 dpi in preferences
under appearance/fonts ?

Comment 6

[RC]

Reporter (Mr. Walles) and Mr. Johnston -- which video cards/drivers you using?

Comment 7

[Johan Walles]

R.K.Aa: Yes, I am browsing at 96 dpi, and that's when the bug shows up.

Mike T: I am using a Rage XL AGP 2X.  Windows says that the drivers are versions
4.00.1381.1006 and 4.0.0.  My display is set to 1280x1028 at 85Hz and "true color".

Comment 8

[Jason Johnston]

My setup is very similar to Johan's:

96dpi (small fonts)
ATI Rage Pro Turbo AGP 2x
1280x1024 @ 90Hz, 32-bit color
Driver 5.00.2195.4018

Note my comments in bug 80292 that the problem disappears when setting my
resolution to 1024x768 or lower, or bumping hardware acceleration down one notch.

Comment 9

[Amarendra Hanumanula]

Changing QA contact

Comment 10

[Timothy Painter]

Johan Walles: Per your request at bug 80292, I am experiencing bug 80292 but not
this one (105986).

Comment 11

[karnaze (gone)]

Temporarily moving to future until a milestone can be assigned. 

Comment 12

[anthonyd]

this is a dupe of a bug, but I dont remember the bug number.  this bug is also 
WORKSFORME.