Regression in Eoan: cannot print to smb connected printer

[Sergio Callegari]

After upgrade from disco to eoan, notwithstanding the fact that /etc/cups/printers.conf has stayed the same, I cannot print anymore to an smb connected printer provided by my Institution.
The connection uses authentication and username, password are present in the smb url in the printers.conf file.

May be the same regression as in Fedora 30 https://bugzilla.redhat.com/show_bug.cgi?id=1706090

Issue prevents upgrading to eoan.

[Sergio Callegari (callegar)]

/var/log/cups/error log repeatedly contains things like:

Session setup failed: NT_STATUS_LOGON_FAILURE
SMB connection failed!

and

Unable to connect to CIFS host: NT_STATUS_IO_TIMEOUT. Will retry in 60 seconds...
Unable to connect to CIFS host after (tried 3 times)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1853242/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1853242

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Sergio Callegari (callegar)]

Sorry, could not report the issue from the machine where I have first experienced the bug. Also marked samba as a possible source for the issue (from the fedora report). If the issue is the same, it seems fixed in Fedora.

[Sergio Callegari (callegar)]

Running cups in debug mode (cupsctl --debug-logging) in the logs I see a couple of interesting lines:

[Job 1008] PID 2888 (/usr/lib/cups/backend/smb) stopped with status 2.
...
[Job 1008] Unable to connect to CIFS host: NT_STATUS_INVALID_ACCOUNT_NAME
...
[Job 1008] Backend returned status 2 (authentication required)

[Sergio Callegari (callegar)]

Actually not a bug, for sure not the one indicated for Fedora.
Just a very poor interaction of the Kyocera DEB package with the Disco->Eoan upgrade.