Version: unspecified (using KDE 4.4.5) OS: Linux When printing from e.g. Okular, I have to set the duplex printing mode manually for each document I print — GTK applications like Chromium and Firefox honor the duplex setting. Reproducible: Always Steps to Reproduce: Get a duplex capable printer; install CUPS and set duplex printing setting to, say, "Long Edge". Open a PDF document in Okular and select "Print" from the "File" menu. In the printing options, you will find that duplex printing is set to "None"; open Chromium or Firefox or another GTK application, select "Print" from the menu, and you will find that in the Print Setup, duplex printing is set to "Long Edge (Standard)"
*** This bug has been marked as a duplicate of bug 198795 ***