[Bug 75858] png to postscript -> black image

[Peter Würtz]

Public bug reported:

When trying to postscript-print certain PNG images, I get a completely
black document instead of the image.

This bug appears to be in Ubuntu - Edgy Eft, back in Dapper Drake
everything works fine.

Here are 2 test cases:

Open the png images using the standard gnome image viewer (which is EOG
for me)

http://www.students.uni-mainz.de/pwuertz/bug/good.png
http://www.students.uni-mainz.de/pwuertz/bug/bad.png

Print them using the "Generic Postscript" printer, Location "File". I
get a good postscript when printing "good.png", and a black document
when printing "bad.png" using Edgy, where Dapper works fine.

The postscript output files are:
http://www.students.uni-mainz.de/pwuertz/bug/dapper.ps.gz
http://www.students.uni-mainz.de/pwuertz/bug/edgy.ps.gz

Where Edgy users see a black document on both postscripts, Dapper users
see a normal image when opening dapper.ps.gz but also a black document
when opening edgy.ps.gz

Maybe its a more global bug in the postscript system?

** Affects: libgnomeprint (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

-- 
png to postscript -> black image
https://launchpad.net/bugs/75858