Backend logging

To enable more verbose Print and Popup backend logging, edit the /etc/cups/cupsd.conf file, replacing the text:

LogLevel info

with this text:

LogLevel debug

Leave everything else as is.

UI logging

To enable logging for the Popup user interface, edit the /etc/syslog.conf file, replacing the text:

with the text


Leave everything else as is.


For Mac OS X 10.8 (Mountain Lion): as indicated within syslog.conf, changes should instead be made to /etc/asl.conf.  To enable the necessary logging, add the following line:

? [= Facility lpr] file /var/log/lpr.log

NOTE: You must restart the client machine to make sure the changes take effect.

If you encounter Popup problems, send the following files to Pharos Support:

  1. /var/log/cups/error_log
  2. /var/log/lpr.log

The first file is the print system log.  The second is the Popup application log.

When no longer needed, stop logging by changing the edited files back to the original state, as logging can generate very large files.