[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=373133

Nate Graham  changed:

   What|Removed |Added

 Resolution|--- |UPSTREAM
 Status|UNCONFIRMED |RESOLVED

--- Comment #28 from Nate Graham  ---
Great.

For people experiencing this issue, it should be resolved once Qt 5.11 is
released and your distro provides it.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #27 from Michael Weghorn  ---
(In reply to Nate Graham from comment #26)
> Should we close this as RESOLVED UPSTREAM, then?

I'd say yes.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #26 from Nate Graham  ---
Should we close this as RESOLVED UPSTREAM, then?

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #25 from Michael Weghorn  ---
Note that the "Advanced" options tab has been reintroduced for the current
development version of Qt 5 [1]. Also, the problem with duplex options being
set at different places has been fixed [2], so I'd expect that the problem
should be solved with those Qt upstream changes (will be part of the upcoming
Qt 5.11).

[1] https://codereview.qt-project.org/#/c/213391/
[2] https://codereview.qt-project.org/#/c/215131/

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=373133

Nate Graham  changed:

   What|Removed |Added

 CC||pointedst...@zoho.com

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #24 from Michael Weghorn  ---
(In reply to Gunter Ohrner from comment #23)
> It's also a Brother printer (DCP 7065DN) but actually seems to use the
> standard Duplex keyword.

The fact that it uses the "Duplex" option seems to explain why it works so well
in other applications.
I just set up a dummy printer with that PPD and checked what options are passed
to CUPS when printing from Konqueror and Okular.
In my case, both options "Duplex" and "sides" were passed as expected for both
Okular and Konqueror (using current KDE neon gitstable), so I wonder a bit why
the two applications behave differently when printing to a real printer.
Does a user-specific default value as described in comment 9 possibly play a
role? (I did not have such a file '~/.cups/lpoptions'.)

In addition, CUPS's 'error_log' file with Debug level enabled might help, as
described in comment 12, point 1).

[As far as I understand this issue right now, different aspects might come into
play when using either the standardized "Duplex" keyword or a vendor-specific
one, so I think it might possibly make sense to split this up into two separate
bug reports in case this assumption is confirmed by your reply to the above
answers (to make it possible to better focus on the single aspects).]

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Gunter Ohrner]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #23 from Gunter Ohrner  ---
Created attachment 106857
  --> https://bugs.kde.org/attachment.cgi?id=106857=edit
PPD Brother DCP7065DN for CUPS

It's also a Brother printer (DCP 7065DN) but actually seems to use the standard
Duplex keyword.

Driver:
dcp7065dnlpr:i386   2.1.0-1

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #22 from Michael Weghorn  ---
(In reply to Gunter Ohrner from comment #21)
> [...]
> Konqueror works (using just the same print dialog as Okular).
> 
> LibreOffice works and shows the option as "Duplex" in its print settings
> dialog.
> 
> lpr on the command line works, using the "-o Duplex" setting:
> 
> * lpr -PDCP-7065DN -o media=A4 -o Duplex=None -o page-ranges=1-2 "$PSFILE"
>   This line prints one-sided, as expected.
> 
> * lpr -PDCP-7065DN -o media=A4 -o Duplex=DuplexNoTumble -o page-ranges=1-2
> "$PSFILE"
>   This line prints duplex / double-sided, as expected.
> 
> Chromium works and labels the option als "beidseitig" in its print page (no
> separate dialog). It also directly updates the print summary line (where it
> states how many pages will be printed in which mode) to reflect the setting.
> 
> Firefox works, here the setting is in the tab "Seite einrichten" in the
> print dialog. The setting is called "Beidseitig", and available options are
> called "Langer Rand (Vorgabe)", "Kurzer Rand (Umdrehen)" and "Einseitig", so
> it's fully translated.
> 
> 
> 
> Basically, I do not know about any other software than Okular which does NOT
> work.

Thank you for that additional information. The way the duplex option is handled
in your case differs from what I get when I use the attached PPD file.

Could you possibly attach your printer's PPD file as well? It should be located
under '/etc/cups/ppd/.ppd'.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Gunter Ohrner]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #21 from Gunter Ohrner  ---
(In reply to Michael Weghorn from comment #16)
> Are there other applications where setting the duplex option in the print
> dialog does work as expected?
> (I just came across
> https://askubuntu.com/questions/766471/non-standard-keywords-in-postscript-
> printer-driver-ppd-break-integration-with) where somebody else describes
> problems with the Brother-specific keywords.)

Konqueror works (using just the same print dialog as Okular).

LibreOffice works and shows the option as "Duplex" in its print settings
dialog.

lpr on the command line works, using the "-o Duplex" setting:

* lpr -PDCP-7065DN -o media=A4 -o Duplex=None -o page-ranges=1-2 "$PSFILE"
  This line prints one-sided, as expected.

* lpr -PDCP-7065DN -o media=A4 -o Duplex=DuplexNoTumble -o page-ranges=1-2
"$PSFILE"
  This line prints duplex / double-sided, as expected.

Chromium works and labels the option als "beidseitig" in its print page (no
separate dialog). It also directly updates the print summary line (where it
states how many pages will be printed in which mode) to reflect the setting.

Firefox works, here the setting is in the tab "Seite einrichten" in the print
dialog. The setting is called "Beidseitig", and available options are called
"Langer Rand (Vorgabe)", "Kurzer Rand (Umdrehen)" and "Einseitig", so it's
fully translated.



Basically, I do not know about any other software than Okular which does NOT
work.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #20 from Michael Weghorn  ---
I suppose that you are right that this is because the Qt 5 print dialog does no
more display all options from the PPD, but only selected ones at the moment
(like "Duplex").

In Firefox print dialog: Is the duplex option available in the "Page Settings"
tab under "Two-sided" or only in an "Advanced" tab under "Two-Sided Printing"
(or similar). The latter would confirm that it is handled as a "custom" PPD
option (rather than the default "Duplex" option which would be shown in the
"Page Settings" tab).

In case the vendor-specific keyword is actually the cause and this is therefore
the general problem with Qt 5's current printing dialog, I currently see no
"reasonable" way of adding support in Okular, rather than working on Qt itself.

For reference: Some discussion about printer-specific options in the Qt 5 print
dialog has also taken place on the Qt development mailing list in January and
February, s. thread "Printer-specific options in Qt5's print dialog (Linux,
CUPS)" at [1] and [2].


[1] http://lists.qt-project.org/pipermail/development/2017-January/thread.html
[2] http://lists.qt-project.org/pipermail/development/2017-February/thread.html

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Moritz Bunkus]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #19 from Moritz Bunkus  ---
In my opinion it "used to work" in Qt4-based Okular because it used Qt4's print
dialog, and Qt4's print dialog still listed all the properties present in the
PPD.

This functionality was removed from Qt, though; see [1]. Only a small subset of
options have been reimplemented.

The "other software that works" most likely uses the options from the PPD
directly, or it contains some heuristics for determining the actual option name
the PPD wants for a certain feature.

[1] https://bugreports.qt.io/browse/QTBUG-54464

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #18 from Robby Engelmann  ---
I can confirm all the things stated by Gunter Ohrner in the previous comment.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Gunter Ohrner]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #17 from Gunter Ohrner  ---
I have a brother printer and the duplex-settings work for basically all
applications that I tried except Okular since being ported to Qt 5.

So it worked with Okular from KDE 5 when it still was a KDE/Qt-4-based
application (please excuse this explanation if it's imprecise) and still works
fine with LibreOffice, Adobe Acrobat Reader, Chromium, etc...

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #16 from Michael Weghorn  ---
Thank you for providing more information.

I think that the problem (or at least a part of it) is that the PPD uses the
vendor-specific "BRDuplex" keyword instead of the standardized "Duplex" one and
the printer possibly ignores the "Duplex" options in the modified PPD.

The log file shows that the option "sides=one-sided" is even present for the
case where you chose "long sided" in the Okular print dialog (which in my
expectation should have resulted in "sides=two-sided-long-edge"). From a quick
glance, this might be because Qt only handles the "Duplex" keyword to decide
whether a printer supports duplex.

When I try with the modified PPD file, I can see that the option
"sides=two-sided-long-edge" is set as expected in the CUPS log (with no real
printer available, I don't get any output however). Since you said that this
does not work either, the proprietary Brother printer driver ignores it as it
only handles its own vendor-specific option...

Are there other applications where setting the duplex option in the print
dialog does work as expected?
(I just came across
https://askubuntu.com/questions/766471/non-standard-keywords-in-postscript-printer-driver-ppd-break-integration-with)
where somebody else describes problems with the Brother-specific keywords.)

Is it possible that you had previously changed the system-wide setting for the
duplex option and this is now back to the default since you used the original
PPD file again (since duplex is deactivated again)?

Is duplex enabled again for the printouts when you run 'lpoptions -p
 -o BRDuplex=DuplexNoTumble' (and disabled after running
'lpoptions -p  -o BRDuplex=None')?
(This writes the respective value to '$HOME/.cups/lpoptions' and is basically
what my assumption in comment 9 was, but there seems to be more to it in
conjunction with the vendor-specific keyword.)

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #15 from Robby Engelmann  ---
Created attachment 106729
  --> https://bugs.kde.org/attachment.cgi?id=106729=edit
cups logs

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #14 from Robby Engelmann  ---
tried again, now again, I have one sided printing only, see the logs attached

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #13 from Robby Engelmann  ---
Yes, when I read my first comment the behavior changed from always single pages
to always duplex. Didn't realize it up to now.
Your modified ppd-file makes no difference here. Still only duplex.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #12 from Michael Weghorn  ---
(In reply to Robby Engelmann from comment #10)
> The very file existed here, but was empty. I removed it anyway and still,
> printing is done with duplex no matter whether "None" or "Long Side" is set
> in okular printing dialog

Thank you very much for testing.

Is the behaviour for you right now exactly the opposite as it was when you
initially opened the bug report? As far as I understand your first comment, all
pages were printed on single pages back then and are now always printed duplex,
no matter what value is set in Okular's print dialog for that option. Did I
understand that correctly?


The following two things might help in further narrowing down the issue:

1) Provide information from CUPS's log file:

* increase log level by setting Directive 'LogLevel debug' in CUPS's config
file '/etc/cups/cupsd.conf'
* restart CUPS, e.g. by running 'sudo systemctl restart cups'
* try printing from Okular again, setting the respective options in the print
dialog
  * It would be particularly helpful if you could do this once for every
available option for duplex printing ("None", "Long Side", "Short Side")
* attach the log file '/var/log/cups/error.log' (or relevant parts of it) to
this bug report, in particular the line containing "[Job ] argv[5]"
is relevant, as it contains the options passed to CUPS.

2) Try with modified PPD file that uses the default keyword "Duplex" for the
duplex option

Is the result still the same when you use the modified PPD file
"hl4150cdn_MODIFIED.ppd" that I have attached to this bug? (The only
modification is that I have replaced the vendor-specific keyword "BRDuplex"
with the standard keyword "Duplex", which might change how this is handled in
Qt and/or Okular).

In order to use the modified PPD, you can run the following command in the
directory where the modified PPD is located:
 lpadmin -p  -P  hl4150cdn_MODIFIED.ppd

The same command with the previous PPD file given will reassign that PPD again.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #11 from Michael Weghorn  ---
Created attachment 106724
  --> https://bugs.kde.org/attachment.cgi?id=106724=edit
modified PPD file that uses the standardized "Duplex" keyword

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #10 from Robby Engelmann  ---
The very file existed here, but was empty. I removed it anyway and still,
printing is done with duplex no matter whether "None" or "Long Side" is set in
okular printing dialog

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #9 from Michael Weghorn  ---
I had a look at this and have an idea what MIGHT be the reason:

Okular uses the options "sides=one-sided", "sides=two-sided-short-edge", and
"sides=two-sided-long-edge" to specify whether or not to do duplex printing.
Those options are passed to the "lpr" command.

On the other hand, PPD files have a standardized keyword "Duplex" that uses
values of "None", "DuplexTumble", and "DuplexNoTumble" to specify the same
option (s. PPD specification).

I made some tests and it seems to me like the PPD option "Duplex" takes
precedence over the "sides" option in case both are given.

Since Okular does not explicitly pass any value for the "Duplex" option, CUPS
uses the user's default value specified for the printer in
'$HOME/.cups/lpoptions' in case that exists.

Example content of a '$HOME/.cups/lpoptions' file that specifies that no
duplexing should be done:

~~~
$ cat .cups/lpoptions 
Default HL2280DW Duplex=None
~~~

So if that option is set, the duplex option set in Okular simply has no effect,
since it is overriden by the other value.


Could somebody of those who are affected verify whether the above assumption
matches their situation - in particular, whether the file
'$HOME/.cups/lpoptions' exists and has a respective value and whether the
problem goes away after renaming/deleting the file?

Additional note:  The attached PPD file uses the vendor-specific keyword
"BRDuplex" instead of "Duplex", but the situation might still be the same.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #8 from Robby Engelmann  ---
Created attachment 106723
  --> https://bugs.kde.org/attachment.cgi?id=106723=edit
ppd file

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Michael Weghorn]

https://bugs.kde.org/show_bug.cgi?id=373133

Michael Weghorn  changed:

   What|Removed |Added

 CC||m.wegh...@posteo.de

--- Comment #7 from Michael Weghorn  ---
As for bug 373863:
In order to analyse the problem further, it would be very helpful to have the
PPD file of the printer in use. It is usually stored under
'/etc/cups/ppd/.ppd'.

In case it could be attached to this bug report, that might be very helpful.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=373133

dev.d...@gmail.com changed:

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 CC||dev.d...@gmail.com

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #6 from dickvandr...@gmail.com ---
(In reply to dickvandrake from comment #5)
> I have the same problem.
> 
> My system:
> 
> openSUSE Tumbleweed 20170626
> KDE Plasma version: 5.10.2
> KDE Frameworks version: 5.34.0
> Qt version: 5.9.0
> Kernel version: 4.11.6-1
> OS type: 64 bits

Duplex printing do not works (Okular Versión 1.1.2)
My printer is an HP Deskjet F2480

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=373133

--- Comment #5 from dickvandr...@gmail.com ---
I have the same problem.

My system:

openSUSE Tumbleweed 20170626
KDE Plasma version: 5.10.2
KDE Frameworks version: 5.34.0
Qt version: 5.9.0
Kernel version: 4.11.6-1
OS type: 64 bits

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=373133

dickvandr...@gmail.com changed:

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 CC||dickvandr...@gmail.com

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Andreas Ermler]

https://bugs.kde.org/show_bug.cgi?id=373133

Andreas Ermler  changed:

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 CC||aerm...@gmail.com

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Moritz Bunkus]

https://bugs.kde.org/show_bug.cgi?id=373133

Moritz Bunkus  changed:

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 CC||mor...@bunkus.org

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Manuel]

https://bugs.kde.org/show_bug.cgi?id=373133

Manuel  changed:

   What|Removed |Added

 CC||manuelbailenhernandez@gmail
   ||.com

--- Comment #4 from Manuel  ---
Confirmed en KDE Neon 

I can't change print quality

Okular 1.0.1
KDE Frameworks 5.30.0
Qt 5.7.1 (compilado con 5.7.0)
El sistema de ventanas xcb

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Alexis M .]

https://bugs.kde.org/show_bug.cgi?id=373133

Alexis M.  changed:

   What|Removed |Added

 CC||lxfx.accounts+...@gmail.com

--- Comment #3 from Alexis M.  ---
Confirmed on Archlinux 

Also, grayscale printing won't work from the okular print wizard.

Okular 16.12.1-1
Linux 4.8.13-1
Plasma 5.8.5.1
Frameworks 5.30.0-1
kdelibs 4.30.0-1

Printer: Brother MFC-J5620DW
Driver: 3.0.1-2

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Gunter Ohrner]

https://bugs.kde.org/show_bug.cgi?id=373133

Gunter Ohrner  changed:

   What|Removed |Added

 CC||kdeb...@customcdrom.de

--- Comment #2 from Gunter Ohrner  ---
Related to https://bugs.kde.org/show_bug.cgi?id=373863 - I'm seeing exactly the
opposite problem... ;)

Maybe Okular does not specify any duplex-printing-information to the driver
which falls back to its default setting?

Anyway, a very annoying nuisance. :-(

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[S . Christian Collins]

https://bugs.kde.org/show_bug.cgi?id=373133

S. Christian Collins  changed:

   What|Removed |Added

 CC||s_chriscoll...@hotmail.com

--- Comment #1 from S. Christian Collins  ---
I am running into this as well. Okular also lost the ability to set CUPS
printer options, as the print properties "Advanced" tab is now missing. I
wonder if all of these regressions are due to Okular now using the Qt5 print
dialog. Unfortunately, these regressions totally mess up my printing, so I have
had to switch to Evince for the time being.

** My System **
OS: KDE Neon 5.8.5 64-bit (Plasma Desktop 5.8.5, KDE Frameworks 5.29.0, Qt
5.7.0)
Linux Kernel: 4.4.0.57-generic
Printer: Brother HL-2280DW using the 2.1.0-1 drivers from the Brother website.

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[okular] [Bug 373133] 16.12.0 Okular duplex printing on but no duplex printing done

[Robby Engelmann]

https://bugs.kde.org/show_bug.cgi?id=373133

Robby Engelmann  changed:

   What|Removed |Added

 CC||robby.engelm...@igfs-ev.de
Summary|16.11.80 Okular duplex  |16.12.0 Okular duplex
   |printing on but no duplex   |printing on but no duplex
   |printing done   |printing done

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