Comment # 11 on bug 1052793 from Antonio Larrosa

Sorry for taking a few days to answer.

The logs are quite interesting and show that indeed there's some problem in Qt
when retrieving the printer information. Btw, you have quite a long list of
printers. Are all those printers defined in a print server? (or several print
servers) or are they configured locally?

Btw, yes, it's ok to revert the previous sets of packages.

Since the way printer information is obtained depends on the printer being
remote or local, I included again the "remotePrinterDiscovery" patch that I
removed in the previous test package and added some more debug output on that
particular point.

Can you install this package and try again?

zypper in
http://download.opensuse.org/repositories/home:/alarrosa:/branches:/openSUSE:/Leap:/42.3:/Update/standard/x86_64/libQt5PrintSupport5-5.6.2-15.1.x86_64.rpm

Btw, it would be great if you can test twice and send both logs. First running
okular as usual and then running okular with "QT_DISABLE_PRINTER_DISCOVERY=1
okular", as both will use different ways to get printer information and should
show different output.