Closed Bug 21981 Opened 25 years ago Closed 23 years ago

xprnt GIF images at some scn depths on ATI 3D RagePro

Categories

(Core :: Graphics: ImageLib, defect, P3)

x86
Windows NT
defect

Tracking

()

RESOLVED WORKSFORME
Future

People

(Reporter: michael.j.lowe, Assigned: pavlov)

References

Details

Attachments

(2 files)

Mozilla has problems displaying _some_ images at _some_ bit depths on an 'ATI 3D
Rage Pro AGP' card (driver version 5.2.040) under NT.   Problem bit depths are:

256 colours : few images bad
65536 colours : most images bad
16.7 million : most images bad
True colour : all images OK

At the problem bit depths, the images initially load and display correctly, then
when they are redrawn (by minimising/maximising window), they disappear and the
only thing drawn in their place is what seems to be an image mask (?) in some
cases.   Attached is a screenshot of the problem at 16.6 millions colours bit
depth.
Attached image screenshot
Michael, to confirm, are you quitting Mozilla before making the bit-depth change,
and then re-loading Mozilla?
Yes - this I'm quitting before making change.   Also, this is latest
nightly build.   Mozilla on my other computer (with Diamond video card) does not
have these problems.
I just checked IE 4.0 and it does not have these display problems.

I also checked Communicator 4.7, and it does sometimes have similiar problems,
but I could only reproduce them at 16.7 million colours bit depth and there are
much fewer images are affected.   Also in the Communicator case, refreshing the
window seemed to make the problem either go away, or reappear (ie. it was
transient).
Status: NEW → ASSIGNED
Target Milestone: M14
I can't reproduce this on my Win32 system; Pam, if you also can't reproduce, let
me know, and I'll see if anyone has an ATI 3D Rage Pro AGP video card.
Here is another screenshot of the problem (at 65536 colours, 1152*864
resolution) on www.limdep.com/index.htm web page.   Notice that only some of the
images on the toolbar at left are missing.    Maybe it is possible from this
screenshot and the actual images from the website, to work out what type of
images have a problem displaying and which don't.    You can then narrow down
what section of the code may have problems.

This is NT 4.0 Service Pack 5 system BTW.
Attached image limdep.com screenshot
Summary: Problem displaying some images at some screen bit depths → Problem displaying transparent GIF images at some screen bit depths
Ok, I followed my own advise and it seems that the problem is limited to
transparent GIF images.   Ordinary GIF and JPEG images seem ok.
See Bug #22789 which is related. Using ATI Rage IIC with TrueColor has layout
problems.
Eli:

What are our chances for finding an ATI 3D rage Pro AGP
inhouse?
?maybe check with judge?

-p

mjudge doesn't have one, so spammed seamonkey-internal to see if anyone does. 
Pushing milestone to 16. Still trying to track down an
 ATI 3D Rage Pro AGP video card.
Summary: Problem displaying transparent GIF images at some screen bit depths → xprnt GIF images at some scn depths on ATI 3D RagePro
Target Milestone: M14 → M16
I have also have a Rage Pro, and images sometimes render incorrectly for me too.
My particular problem is that the images looks fine at first, but when you
scroll down, and then up again, it looks ugly. It renders the uppermost few
pixels of the image all the time (instead of going on to the lower pixels after
the high ones are already rendered) so it looks very ugly. The faster you scroll
up, the less times will mozilla render the top of the image, which means that
there becomes more pixels per update. If scroll very fast, it looks perfect. I
think that I've only experienced this problem at on page, and I will soon upload
a page where this problem exist for me. Maybe it's because the picture is in a
table (with the image as the background of the table, defined in CSS). I'm using
driver version 4.11.2560. I will post screenshots and more info later.
Sorry, I forgot: my OS is win98 SR-1 (the service-pack made no difference), and
the graphics card is of course AGP. GIF and PNG makes no difference.
I checked with Dan Matejka (sp), who has a Rage LP Pro AGP 2X card, and can't 
reproduce this problem.
The card in question is available for $25 from eBay. If this is still occuring 
and can't be traced to an old driver or whatnot, I suggest we just buy one and 
try it out.
*** Bug 22789 has been marked as a duplicate of this bug. ***
Folks who are encountering this bug:

Could you please comment in this bug report with what driver version(s) are you
using for your ATI video card? (if you haven't already)

Thanks!
I've switched from my ATI Rage IIC to a 3D Rage Pro AGP 2X (aka Rage Pro Turbo). 
Still have the same problems with Mozilla (and interestingly enough, 
Communicator 4.7x) on Windows NT 4.0 SP6A.

Was using an earlier version of the drivers. Upgraded to the latest on their
web site, 5.2.04 and still have the problem.
Vernon (devrel@ati.com) has reproduced this problem in-house at ATI, and will be
filing a report for their engineers regarding the issue.
Moving to m17
Target Milestone: M16 → M17
*** Bug 31720 has been marked as a duplicate of this bug. ***
Eli,
Could you ask Vera to make a release note of this ATI card problem?

Thanks,
Neeti
Already done (of course!)
Hi, all ---

Vernon at ATI recommends trying the 5.38.2B08 of the Rage Pro NT driver from <
http://www.ati.com/na/pages/spdrivers/index.html>. Sorry for the very slow 
follow-up on my part (it's been a month).

Would anyone be interested in checking whether the new driver helps, and if so, 
posting here? (I'm not sure whether they're rolling these patches into a 
mainstream driver or not.)

Thanks!
Moving to m18
Target Milestone: M17 → M18
Target Milestone: M18 → Future
I'm getting this problem in all colour depths (see bug 47287). I tried the beta
ATI driver, but it doesn't work (won't init after reboot), probably because the
ATI 3D Rage Pro in my PC has been mother-board integrated by Dell and you have
to use Dell drivers. ATI would have to release a driver with this fix to Dell
for the millions (?) of Dell-with-Rage-Pro users to get this fix. I did try the
latest Dell-ATI driver, but it is still broken.

I can't help thinking that there should be a way around this driver issue. No
other apps on my PC, including IE, have problems rendering images.

I know of many Dell + NT + Mozilla or Netscape 4.x users that have this problem.
I have had the same problem.

My config. is
K6-2 400Mhz
Epox Mvp3-GM
ATI Xpert@play98 (RagePro Turbo chip)
Netscape 4.73 and Mozilla build 2000-11-01-04

The problem is known by ATI and they have fixed it for the Rage128 cards. (but
not Rage Pro)
However I don't think this is a ATI driver/hardware problem because it works in
Internet Explorer.
http://support.ati.com/infobase/3193.html

Other problems with Netscape/Mozilla:
1. Animated gifs is rendered with a non predictable result.
2. Scrolling up and down will make white lines across the image.
Both these problems are covered in ATIs Infobase - but I can't find it.

I have however found a work around for the problem and that is to change the
Front side bus from 100Mhz to 66Mhz(Memory speed). The only problem is a
CONSIDERABLE performance loss.

I think we need to fix this problem because the Rage Pro series is one of the
most used graphics chips in the world.
The Epox MVP3-GM is a motherboard.

The problem I can't find anything about in ATIs infobase is the "Animated gif"
problem - I know it's in there, I just can't find it.
QA Contact: elig → tpreston
All pnunn bugs reassigned to Pav, who is taking over
the imglib.
Assignee: pnunn → pavlov
Status: ASSIGNED → NEW
Reporter, is this still an issue?  We have a new imagelib and I would like to 
know if this solved the issue?  thanks
marking worksforme.
no response from reporter
Status: NEW → RESOLVED
Closed: 23 years ago
Resolution: --- → WORKSFORME
You need to log in before you can comment on or make changes to this bug.

Attachment

General

Creator:
Created:
Updated:
Size: