** Changed in: cups (Ubuntu Lunar)
Status: New => In Progress
** Changed in: cups (Ubuntu)
Status: Confirmed => Fix Committed
** Also affects: okular (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: cups (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: atril (Ubuntu Jammy)
Importance: Undecided
Status: New
** No longer affects: cups (Ubuntu Lunar)
** Changed in: cups (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: cups (Ubuntu Jammy)
Status: New => In Progress
** No longer affects: okular (Ubuntu Lunar)
** No longer affects: okular (Ubuntu Jammy)
** No longer affects: atril (Ubuntu Lunar)
** No longer affects: atril (Ubuntu Jammy)
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https://bugs.launchpad.net/bugs/1971242
Title:
printing PDF appears always grey, no color
Status in CUPS:
Fix Released
Status in atril package in Ubuntu:
Confirmed
Status in cups package in Ubuntu:
Fix Committed
Status in okular package in Ubuntu:
Confirmed
Status in cups source package in Jammy:
In Progress
Bug description:
After upgrading from 20.04 LTS to 22.04 LTS I can't print colored PDF
document. The print appears always b/w regardless color printing was
enabled or not. Printing from LibreOffice produces a color print. This
behavior (bug) is reproducible on three upgraded machines. It would be
nice to have color print back again.
[ Impact ]
If the PPD file for a printer has a ColorModel option and the only
choice in it for printing in color is not named RGB but CMYK instead,
the printer cannot be made printing in color with intuitive methods,
usually selcting the color choice in the print dialog (which makes
ColorModel=CMYK be sent along with the job).
Only an ugly command-line-based workaround, running the command
lpadmin -p PRINTER -o print-color-mode-default=color
makes the printer print in color.
An example for printers with such PPDs are printers from RICOH and OEM
(Lanier, InfoTec, Savin, ..), so many high-end color laser printers
are affected.
[ Test Plan ]
Remove the workaround if you had applied it:
lpadmin -p PRINTER -R print-color-mode-default
If you have an affected printer, print a PDF file (or use the print
functionality in an application) with colored content and choose the
setting for color printing in the print dialog. When printing via
command line do
lp -d PRINTER -o ColorModel=CMYK FILE.pdf
Without the SRU applied you will get a grayscale/monochrome printout,
with it applied, you will get a colored printout.
To test without a printer:
Stop CUPS:
sudo systemctl stop cups
Edit /etc/cups/cups-files.conf to have a line
FiileDevice Yes
ans start CUPS again:
sudo systemctl start cups
Then create a queue using the attached sample PPD file:
lpadmin -p color-test -E -v file:/tmp/printout -P Ricoh-
PDF_Printer-PDF.ppd
Print a file to this queue as described above. When the job is done
("lpstat" does not show it any more), open /tmp/printout with a text
editor. Chcke whether it contains a line
@PJL SET RENDERMODE=COLOR
near its beginning, and NOT a line
@PJL SET RENDERMODE=GRAYSCALE
[ Where problems could occur ]
The patches are simple and they are also for some time in newer CUPS
versions (2.4.2 and newer) which are included in several distributions
(Ubuntu 22.10, 23.04, and others) and did not cause any complaints
about color printing. So the regression potential is very low.
To manage notifications about this bug go to:
https://bugs.launchpad.net/cups/+bug/1971242/+subscriptions
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