https://bugzilla.novell.com/show_bug.cgi?id=776080
https://bugzilla.novell.com/show_bug.cgi?id=776080#c24
Eric Schott
now you need to verify if calling pdftops with -duplex is required to make duplex printing work regardless that afterwards CUPS will add the PostScript snippet to also enable duplex printing.
pdftops needs its input in a regular file (usual requirement when processing PDF files which have a reference "xref" table at the end) therefore the test has now two steps:
# echo -e "page1\fpage2" | a2ps -1 -M Letter -o- \ | ps2pdf - /tmp/test.pdf
# pdftops -level3 -duplex /tmp/test.pdf - \ | lp -d dell5110cn -o Duplex=DuplexNoTumble
One more shot in the dark:
If the Dell Color Laser 5110cn PS is only a PostScript Level 2 printer try out if
# pdftops -level2 -duplex /tmp/test.pdf - \ | lp -d dell5110cn -o Duplex=DuplexNoTumble
or even
# pdftops -level2 /tmp/test.pdf - \ | lp -d dell5110cn -o Duplex=DuplexNoTumble
Sorry for the delay .. other fires to fight here. But I am sure you have been occupied. I tried several tests: 1) I did your requested items and all failed to duplex. 2) I created an openSUSE 12.1 virtual machine with the bare packages need to run a print server. This did duplex correctly. I used the same PPD and test.pdf from my 12.2 machine. 3) On my 12.2 machine, I downgrade poppler-tools to 0.18.0-2.6.1 from 12.1 Updates repo and installed libpoppler18-0.18.0-2.6.1. Duplex works correctly.
From this, I am comfortable making the claim this is either a Poppler problem or a Dell printer problem. I would day most likely Poppler.
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