Difference between revisions of "Talk:CUPS"

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==Kernel modules==
The whole Kernel modules section is confusing. Is it mandatory? What exactly should we do?
== Print button greyed-out in GNOME print dialogs ==
As suggested by the Arch wiki, I used the
# HostNameLookups Double
option. However, that resulted in following error message:
IP lookup failed - connection from localhost closed!
and I wasn't able to add printers via the CUPS web interface (internal server error)
It seems there is an outstanding bug with respect to the HostNameLookups:
Removing the HostNameLookups double form the cups config file resolved my issue. Not sure why this used to solve instead of create problems.
== Device node permissions ==
I got a problem after update of hplip / cups and foomatic. My printer not working anymore.
So I first check possible problems and read section Device node permissions. It's recommended to verify that permissions are 660. It was my case so I am looking to find another solution.
After a long time and read I was back to this section. I read also section below Device node permission troubleshooting. As my conf was with well permission I don't really read all carefully. It was the 3rd/4th time before I see the note about 666 permissions. I tried this and it's solved my problem.
So I think it would be great to make also a note on Device node permissions about 666. Because my conf look allright as writing in wiki, but in fact not.
== How to get the damned IP. ==
"Then add your cups server IP or hostname into /etc/cups/client.conf." ... begs the question how you get the freaking IP or hostname.[[User:Jasper1984|Jasper1984]] ([[User talk:Jasper1984|talk]]) 17:30, 6 October 2012 (UTC)
:Run something like {{ic|ip addr}} on the server. [[User:Lonaowna|Lonaowna]] ([[User talk:Lonaowna|talk]]) 17:46, 6 October 2012 (UTC)
== cups + systemd ==
Need more info for chapter "Installed Printers Do Not Appear in Print Dialogs After Installing/Upgrading to Systemd".
Existing suggestions from article (change socket path, etc) does not help.
$ cat /etc/systemd/system/sockets.target.wants/cups.socket | grep Listen
$ systemdctl status cups
cups.service - CUPS Printing Service
  Loaded: loaded (/usr/lib/systemd/system/cups.service; enabled)
  Active: active (running) since Wed, 24 Oct 2012 11:54:21 +0400; 20min ago
Main PID: 15040 (cupsd)
  CGroup: name=systemd:/system/cups.service
  └ 15040 /usr/sbin/cupsd -f
Oct 24 11:54:21 localhost systemd[1]: Starting CUPS Printing Service...
Oct 24 11:54:21 localhost systemd[1]: Started CUPS Printing Service.
Oct 24 11:54:21 localhost cupsd[15040]: Unknown directive DefaultAuthType on line 9.
Oct 24 12:02:42 localhost systemd[1]: Started CUPS Printing Service.
$ file /var/run/cups/cups.sock
/var/run/cups/cups.sock: ERROR: cannot open `/var/run/cups/cups.sock' (No such file or directory)file /var/run/cups/cups.sock
If cups started via ''rc.d start cupsd'', everything working ok.

Latest revision as of 04:41, 18 September 2016