I have gone into https://wiki.ubuntu.com/DebuggingPrintingProblems and tried to follow the instructions of the "CUPS error_log" section.
Step 1. I can't do it. Can't find "Save debugging information for troubleshooting" on "System" -> "Administration" -> "Printing". I have System Setting --> Printers --> Help --> Troubleshoot --> Forward. I get the message CUPS Service Stopped The CUPS print speel does not appear to be running. To correct this, choose System-Administration-Services from main menu and look for 'cups' service. My difficulty is there isn't such a path to follow. The is no Administration icon. Step 2: @Eliot:~$ cupsctl LogLevel=debug cupsctl: Unable to connect to server: Bad file descriptor Step 3: Skipped - Not applicable. Step4: I have gone into /etc/cups/cupsd.conf and manually uncommented LogLevel.... Original: # Deactivate CUPS' internal logrotating, as we provide a better one, especially # LogLevel debug2 gets usable now MaxLogSize 0 Presently: # Deactivate CUPS' internal logrotating, as we provide a better one, especially LogLevel debug2 gets usable now MaxLogSize 0 @Eliot:~$ $ sudo /etc/init.d/cups restart $: command not found The file is there. I believe Ubuntu16.04 is using systemd. I tried this and got the below failure message. @Eliot:~$ sudo systemctl restart /etc/systemd/system/cups.service Failed to restart etc-systemd-system-cups.service.mount: Unit etc-systemd-system-cups.service.mount not found. Unable to do Step 5,6, 7, 8. On 03/02/2017 05:32, Till Kamppeter wrote: > Your syslog contains: > > Feb 2 22:36:43 Eliot udev-configure-printer[5761]: failed to connect to > CUPS server; giving up > > and you also get > > @Eliot:~$ lpinfo -v > lpinfo: Bad file descriptor > > Seems that there is a problem with the CUPS daemon not starting. > > Please run the command > > ls -l /var/run/cups/cups.sock > > and post the output here. > > Also attach your files /etc/cups/cupsd.conf and /etc/cups/cups- > files.conf. > > Go to > > https://wiki.ubuntu.com/DebuggingPrintingProblems > > and follow the instructions of the "CUPS error_log" section. > > Please attach the files one by one, do not compress them and do not > package them together, thanks. > > ** Changed in: cups (Ubuntu) > Status: New => Incomplete > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1661287 Title: Canon printer failed to connect with CUPS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1661287/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
