I have a similar problem with IPP printing that requires authentication, and I think it's the same bug (or related at least).
I set up the printer (IPP) and the first time I printed I was prompted for a password, but it worked. After this, however, I got the authentication error described above. After som digging, I have it kind of working by doing this: 1. Changing the URI in /etc/cups/printers.conf from DeviceURI ipp://<ipp-printer-server-adress>:631/printers/printer1 to DeviceURI ipp://USER:PASSWORD@<ipp-printer-server-adress>:631/printers/printer1 2. Removed myself from the lpadmin group. Now I can print using lpr or Acroreader (which uses lp/lpr), but I still can't print from Evince! Adding the USER:PASSWORD in system-config-printer does not work, but manually editing /etc/cups/printers.conf did. As a first try, I commented out the "AuthInfoRequired" line, but it crept back in when I restarted Cups! Another thing which may or may not be related is that I can't change the printer settings for this printer that require authentication. [And yes, I tried it while still begin in the lpadmin group...] If I use the Cups web interface, it works however. But it's not very convenient... -- Failed to print document - can't prompt for authorization https://bugs.launchpad.net/bugs/305030 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
