[Okular-devel] [okular] [Bug 322993] New: Okular always prints in duplex mode

[dolgener at informatik.uni-erlangen.de]

https://bugs.kde.org/show_bug.cgi?id=322993

            Bug ID: 322993
           Summary: Okular always prints in duplex mode
    Classification: Unclassified
           Product: okular
           Version: unspecified
          Platform: Debian testing
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: dolgener at informatik.uni-erlangen.de

If you have a printer that supports duplex, it is not possible to print
one-page-per-sheet (=duplex off), even if "duplex printing:none" is set and is
the default setting for system-config-printer-kde and your local CUPS.

Reproducible: Always

Steps to Reproduce:
1. Make sure CUPS is configured for bo duplex per default ("sides=one-sided").
2. Make sure in system-config-printer-kde your printer's duplex feature is set
correctly.
3. Make sure in system-config-printer-kde "duplex printing:none" is set per
default.
4. Print anything, again making sure that  "duplex printing:none" is set in the
printing dialog.
Actual Results:  
The print job is duplexed despite anything. You can get a one-sided printout
only by emulation (inserting empty pages in your document!).

Expected Results:  
The print job is printed one-sided as defined by default setting and/or by
individual request.

* Other non KDE applications (like evince or libreoffice) are capable of
printing with and without duplex as requested.
* Other KDE applications (like calligra foo) behave like okular, hence the bug
seems to concern the KDE printing envirenment in general.
* Changing CUPS version does not help.
* Changing CUPS printer driver type does not help.
* Restarting CUPS does not help.

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