[okular] [Bug 473841] New: Can't print duplex to remote printer (but evince can)

[Mark van Rossum]

https://bugs.kde.org/show_bug.cgi?id=473841

            Bug ID: 473841
           Summary: Can't print duplex to remote printer (but evince can)
    Classification: Applications
           Product: okular
           Version: 22.12.3
          Platform: Ubuntu
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: printing
          Assignee: okular-devel at kde.org
          Reporter: mark.vanrossum at nottingham.ac.uk
  Target Milestone: ---

Hi

I'm trying to print a PDF in duplex to a remote network printer.
However, the duplex options (long side and short side) are greyed out.

Evince and Libreoffice do allow selecting duplex, and indeed print duplex.

It seems an issue with some printers only. (Maybe it tries to query the
printer, but can't?)

lpoptions correctly reports that it should do duplex by default.
copies=1 device-uri=ipp://10.156.114.37:631/printers/HP-LaserJet-4050
finishings=3 job-cancel-after=10800 job-hold-until=no-hold job-priority=50
job-sheets=none,none marker-change-time=1693217958 marker-colors=none
marker-levels=92 marker-names='Toner Cartridge HP C8061X' marker-types=toner
number-up=1 print-color-mode=monochrome printer-info='HP LaserJet 4050'
printer-is-accepting-jobs=true printer-is-shared=false
printer-is-temporary=false printer-location printer-make-and-model='Remote
Printer' printer-state=3 printer-state-change-time=1693217965
printer-state-reasons=none printer-type=2097158
printer-uri-supported=ipp://localhost/printers/4100-10.56.114.37
sides=two-sided-long-edge

Ubuntu 23.04, xfce, okular 22.12.3

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