Public bug reported:

Mon 24 Jun 2024 05:10:59 PM PDT

Environment: Ubuntu 20.04, can't print to local printer
Settings->Printers gives diagnostic:
        "Sorry, printing service doesn't seem to be available"

This has been working correctly for 4 years until today following boot + 
install patches.
Problem was traced to an incorrect version of /etc/cups/cupsd.conf that seems 
to have come from
a patch cluster this morning.

The solution is as follows:

sudo -i
        # cd /var/log/cups
        # view error_log        # discover error in cups initialization
        # cd /etc/cups
        # diff cupsd.conf*
                < LogLevel warn
                ---
                > LogLevel debug
                < Listen /run/cups/cups.sock
                ---
                > Listen localhost:631
        # grep Listen cupsd.conf             # duplicate "Listen" on socket
                Listen /run/cups/cups.sock
                Listen /run/cups/cups.sock
        # cp -p cupsd.conf.O cupsd.conf      # restore old conf file
        # systemctl restart cups.service     # restart cups
        # ps -e | grep cups                  # is the daemon running?
                6082 ?        00:00:00 cupsd

Looks like this corrupt conf file escaped from the dev crew by accident.
ljweiss...@frontier.com

** Affects: cups (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2070315

Title:
  error in /etc/cups/cupsd.conf from today's patch

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