cups 2.3.1 does not enumerate printer instances that are set up with lpoptions

[Darren Croft]

We use printer instances (PRINTER/instance) that are defined in /etc/cups/lpoptions

Printer instances don't work properly with Ubuntu 20.04 and cups 2.3.1. We have used the same lpoptions file with earlier versions of cups.

With 2.3.1, the command:
lp PRINTER/instance FILENAME
works

But the printer instances are not visible as printers in the libreoffice print dialog, or by using lpstat -e or lpstat -a.

There is a recent fix in the uplevel cups code for printer instances.

We did our own make and install of the uplevel master branch 2.3.5 and printer instances are working now.

We hope that ubuntu 20.04 can soon include the 2.3.5 cups code.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: cups (not installed)
ProcVersionSignature: Ubuntu 5.8.0-53.60~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Tue Jun 1 16:37:10 2021
InstallationDate: Installed on 2021-03-08 (85 days ago)
InstallationMedia: Kubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)