Bug 14043 - Subtle rendering bug in nv-2.1.2
Summary: Subtle rendering bug in nv-2.1.2
Status: RESOLVED WONTFIX
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nVidia (open) (show other bugs)
Version: 7.2 (2007.02)
Hardware: Other All
: medium normal
Assignee: Aaron Plattner
QA Contact: Xorg Project Team
URL: http://www.sigalert.com/map.asp?Regio...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-01-12 12:36 UTC by walt
Modified: 2011-09-14 13:40 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:


Attachments
vesa driver works correctly (197.55 KB, image/png)
2008-01-25 06:45 UTC, walt
no flags Details
nv driver won't display colored dots (623.79 KB, image/png)
2008-01-25 06:47 UTC, walt
no flags Details

Description walt 2008-01-12 12:36:49 UTC
nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] rev 21

Yes, pretty old, and this bug is hard to demonstrate except with
mozilla-firefox trunk or openoffice-2.3.1.

The URL above is a freeway traffic map of Los Angeles, consisting
of a permanent base map and a real-time overlay of colored dots
representing our god-awful traffic.

Firefox-trunk (but not firefox-release) displays the overlaid
colored dots as transparent (colorless) circles.

The openoffice chart2 module displays various kinds of graphs,
bar-charts, pie-charts, etc in the oocalc spreadsheet app.  The
nv rendering bug turns the colorful charts nearly transparent,
which suggests the same mechanism that causes the firefox bug.
(BTW, OO < 2.3.1 did not trigger this bug.)

I believe this is an nv driver problem because nvidia-71.86.01
renders the same graphics correctly.

If you can think of any testing/debugging tricks I could use,
I'd be pleased to try them, or supply more info if needed.

Thanks.
Comment 1 Aaron Plattner 2008-01-24 17:48:06 UTC
Please try the vesa driver.  If that works, please attach a screenshot.
Comment 2 walt 2008-01-25 06:45:52 UTC
Created attachment 13933 [details]
vesa driver works correctly
Comment 3 walt 2008-01-25 06:47:42 UTC
Created attachment 13934 [details]
nv driver won't display colored dots
Comment 4 Aaron Plattner 2008-01-25 08:50:27 UTC
Very interesting.  Do you have other cards you could test with besides the NV5?   Also, when you say "firefox-trunk", does that include Firefox 3 beta 2 (which is what I have)? 
Comment 5 walt 2008-01-25 09:53:06 UTC
Yes, firefox 3b2 does trigger this problem.  I first noticed it in firefox around
the time they switched toolkits from gtk2 to cairo-gtk2.  OpenOffice 2.3.1 also
uses some cairo code, I notice, though I don't know if that's what makes the difference.

This NV5 card is the only one I have that uses the nv driver, unfortunately.

Comment 6 Aaron Plattner 2008-01-25 09:59:51 UTC
Okay, thanks.  I'll try to track down an NV5.  They're not exactly abundant at this point.  :)
Comment 7 Corbin Simpson 2011-09-14 13:40:24 UTC
xf86-video-nv has been officially unmaintained for a bit now, and we are closing all -nv bugs. If your problem was not addressed, and -nv is still broken, please try xf86-video-nouveau. Thank you.


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