Bug 500779

Summary: Double sided printing options unselectable
Product: [Applications] okular Reporter: Nathan Upchurch <nathan>
Component: printingAssignee: Okular developers <okular-devel>
Status: RESOLVED UPSTREAM    
Severity: normal CC: john.kizer
Priority: NOR    
Version First Reported In: 24.12.2   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: A screenshot of the radio buttons in question

Description Nathan Upchurch 2025-02-26 17:51:16 UTC
Created attachment 178906 [details]
A screenshot of the radio buttons in question

SUMMARY
When attempting to print a PDF, double sided print options are greyed out and unselectable.

STEPS TO REPRODUCE
1. Open a multi-page PDF
2. Click print
3. Attempt to select a double sided printing option besides "off"

OBSERVED RESULT


EXPECTED RESULT
No other options can be selected

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.13.2-arch1-1 (64-bit)
Graphics Platform: Wayland
Comment 1 Nathan Upchurch 2025-02-26 17:52:04 UTC
Also, I am printing to a physical printer, not PDF.
Comment 2 John Kizer 2025-03-15 20:44:58 UTC
Hi - as long as this is trying to print to a device detected via CUPS, then unfortunately this appears to be an upstream Qt bug. There are two different reports in Qt's bug tracker that are relevant, and that you may want to track:

https://bugreports.qt.io/browse/QTBUG-78872
https://bugreports.qt.io/browse/QTBUG-100662

Thanks!
Comment 3 John Kizer 2025-03-15 20:46:37 UTC
And sorry for the double email, but one workaround I've found is to add your device via the System Settings > Printers module. It results in two listings for available printers, but the one for the "installed" printer is fully featured - I'm guessing because it doesn't rely on the CUPS feature discovery running on-demand.

Hope that helps,