Bug#763517: patches breaking color management
Package: cups
Version: 1.7.5-2
Severity: critical
I've been chasing this bug since some time now. The issue has been
discussed in the CUPS and printing-architecture mailing-list.
For the context. I'm printing on an Epson 3880 since 2 years with an
home made profile. And recently I found that my prints were really bad.
After investigation I found that reverting to CUPS 1.7.5-1 from testing
fixes the problem.
I have then found out that one difference with 1.7.5-2 is that the
ColorManaged option is now listed as CM-Calibration
in /etc/cups/printers.conf.
Looking at the GNU/Debian change between 1.7.5-1 and 1.7.5-2 I think
that the culprit is the following:
> [ Till Kamppeter ]
> * Updated color management extension patch to the newest version from Joseph
> Simon, especially to fix PPD updates via the web interface (LP: #1362321).
(http://metadata.ftp-master.debian.org/changelogs//main/c/cups/cups_1.7.5-3_changelog)
It should probably be removed or fixed as it does not only fix the PPD
updates via the web interface but also breaks color management done down
the piper by the filters.
Please let me know if you need more information. I can also do some
testing but I've already wasted lot of paper and ink :)
Thanks,
--
Pascal Obry / Magny Les Hameaux (78)
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