| Summary: | cups-1.3.10 breaks printing system-wide (?!) | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Matt <jackdachef> |
| Component: | [OLD] Printing | Assignee: | Printing Team <printing> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | aklhfex, chris, danierrr, it-knodel, ken69267, psdasilva, remy, rogerx.oss, rose, sbriesen, subscryer, tetromino, voyageur, wim.gentoo |
| Priority: | High | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://cups.org/str.php?L3162 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: | my cupsd.conf | ||
|
Description
Matt
2009-04-18 18:58:10 UTC
I had some hiccups with CUPS 1.3.10 too, after upgrading from 1.3.9 (and also upgrading to the more modular poppler 0.10.6 from poppler 0.10.5). Firefox won't print to a CUPS printer (the printer wasn't found at first; after a reboot, it found the printer, but the Print button was greyed out), but if I print-as-PDF and then open the PDF in Adobe Reader 9, it'll find the printer and print without trouble. Connecting to the CUPS server using Firefox shows no printer problems (idle, accepting jobs.) CUPS is fine -- I was able to print. Firefox isn't seeing or allowing printing to CUPS though. This may or not be related to the OP's bug. This is apparently the result of the following new "feature" in cups-1.3.10: http://www.cups.org/articles.php?L582 "The scheduler no longer looks up the local hostname by default; turn on hostname lookups to restore the previous behavior." In other words, if you use the default cupsd.conf, with cups-1.3.10, ALL local printers will stop working - and apparently, that's by design! In order to make printing work again, you need to add the following two lines to cupsd.conf: # Unfuck cups-1.3.10 local printing HostNameLookups On Thanks. Works now... Confirmed fixed. Thanks so much, Alexandre! Adding URL to upstream report, not considered a CUPS bug by upstream though. sed -i -e 's/localhost/\/var\/run\/cups\/cups.sock/g' /etc/cups/client.conf will do the trick. We install that file cause of bug #196967 so it's probably our fault not CUPS. Please confirm that it also works for you so I can revbump CUPS with the fix later today. (In reply to comment #6) Works here (after a firefox restart, the print option worked, without HostNameLookups option) (In reply to comment #6) > sed -i -e 's/localhost/\/var\/run\/cups\/cups.sock/g' /etc/cups/client.conf > > will do the trick. We install that file cause of bug #196967 so it's probably > our fault not CUPS. Please confirm that it also works for you so I can revbump > CUPS with the fix later today. Unfortunately, that doesn't seem to help here. If I have "ServerName /var/run/cups/cups.sock" in client.conf but no "HostNameLookups On" in cupsd.conf, local printing still doesn't work. On the other hand, adding "HostNameLookups On" to cupsd.conf makes local printing work no matter whether I use "ServerName localhost" or "ServerName /var/run/cups/cups.sock" in client.conf. (In reply to comment #8) > Unfortunately, that doesn't seem to help here. Have you restarted cupsd ? Timo, it worked here too. Feel free to push this fix to cvs whenever you want. Denis. Created attachment 189075 [details] my cupsd.conf (In reply to comment #9) > (In reply to comment #8) > > Unfortunately, that doesn't seem to help here. > > Have you restarted cupsd ? Of course, I restart cupsd after every change to cupsd.conf or client.conf. With the attached cupsd.conf, and with client.conf consisting of only 1 line ServerName /var/run/cups/cups.sock local printing with 1.3.10 does *not* work. Using "ServerName localhost" in client.conf results in identical non-working behavior. (Printing to a remote cups server works fine in both cases.) Uncommenting "HostNameLookups On" in cupsd.conf makes local printing work again. ditto here. The above sed fix only applies to clients and not the host/server (/etc/cups/cupsd.conf) BTW, looks like the above sed fix is already used here within my /etc/cups/client.conf. And, I'm only seeing certs/ within /var/run/cups! Somethings amiss! (In reply to comment #9) > (In reply to comment #8) > > Unfortunately, that doesn't seem to help here. > > Have you restarted cupsd ? I finally realized what I was doing wrong. When there is a change to client.conf, I need to restart the applications that use cups, instead of just restarting cupsd. Basically, restart Gnome when you change client.conf - then the fix proposed in Comment #6 works, and "HostNameLookups" is not needed. I apologize for wasting everyone's time. Oops. My fault concerning comment #11 stating sed only works on /var/run/cups. Misread the sed incantation! :-/ I'm using XFCE4 here & logging out & relogging back in solved it. ;-) (In reply to comment #6) > Please confirm that it also works for you Confirming. > so I can revbump CUPS with the fix later today. Yes, please use the socket by default. Thanks! By the way, the corresponding report in the Gnome Bugzilla to address the malformed Host header is probably this one: http://bugzilla.gnome.org/429845 *** Bug 267093 has been marked as a duplicate of this bug. *** (In reply to comment #12) > (In reply to comment #9) > > (In reply to comment #8) > > > Unfortunately, that doesn't seem to help here. > > > > Have you restarted cupsd ? > > I finally realized what I was doing wrong. When there is a change to > client.conf, I need to restart the applications that use cups, instead of just > restarting cupsd. > > Basically, restart Gnome when you change client.conf - then the fix proposed in > Comment #6 works, and "HostNameLookups" is not needed. > > I apologize for wasting everyone's time. > The same thing happened here :) only use the "sed", after restart cupsd and evince, I can print in evince then :D Funny. I can no longer print from Firefox or Acroread. But I can print a test page from the cups admin @ localhost:631. Firefox only shows "print to file". Acroread responds with "lp:Error - scheduler not responding!" # cat /etc/cups/client.conf ServerName /var/run/cups/cups.sock # ls /var/run/cups/cups.sock ls: cannot access /var/run/cups/cups.sock: No such file or directory Solution: Add the following line near to the top of the file /etc/cups/cupsd.conf Listen /var/run/cups/cups.sock This is already listed within one of the original cupsd.conf files, however, due to configuration alterations, according to wiki & what not, it was removed? I keep getting problems, also after enabling host name lookups. Whenever I try to access cups via the hostname (http), I get a 400 error. Only when using the IP, things work. Problem appeared after upgrading from 1.3.9* to 1.3.10. Cups runs on a server, I'm trying to access it from my workstation. Below few lines from error_log. First 2 lines are caused by a request in my browser via http, the last 2 probably by cups running on my workstation. W [24/Apr/2009:00:37:12 +0200] Request from "xxx.kuipnet.void" using invalid Host: field "cups.kuipnet.void:631" W [24/Apr/2009:00:37:12 +0200] Request from "xxx.kuipnet.void" using invalid Host: field "cups.kuipnet.void:631" W [24/Apr/2009:00:39:04 +0200] Request from "xxx.kuipnet.void" using invalid Host: field "cups.kuipnet.void" W [24/Apr/2009:00:39:14 +0200] Request from "xxx.kuipnet.void" using invalid Host: field "cups.kuipnet.void" Also, when client.conf on my workstation has the hostname, printer lists are empty, but as soon as I change it to the IP, things work again. In cupsd.conf, I have: ServerName cups.kuipnet.void HostNameLookups On Listen cups.kuipnet.void:631 (In reply to comment #19) Ditto here, I confirm the behaviour. ok, I have a cups server running on my router. Works well again. But on my clients, I only setup client.conf with
> ServerName cupsserver
where cupsserver is resolvable via DNS. Worked until now. Now I have to use the IP address. Is there a solution also? I don't want to run the daemon on the clients and done want to use the IP directly either.
I've committed -r1 to the tree fixing the problem not being able to locally print (by replacing localhost with the socket in client.conf). Please open a new bug if you encounter other/new problems. Looked a bit more into configuration manual and searched a bit more for info on #19, and seems that if you add the following in cupsd.conf, things work again as before: ServerAlias * This seems to be new compared to 1.3.9. (In reply to comment #23) > ServerAlias * That did the trick. Thank you very much. >Solution: Add the following line near to the top of the file >/etc/cups/cupsd.conf > > Listen /var/run/cups/cups.sock > >This is already listed within one of the original cupsd.conf files, however, >due to configuration alterations, according to wiki & what not, it was removed? this fixed it for me (also provided by the -r1 ebuild) thanks roger and Timo ! *** Bug 268686 has been marked as a duplicate of this bug. *** (In reply to comment #23) > ServerAlias * restored my remote printing (use cups to print on two remote printers) with cups 1.3.10-r1 (In reply to comment #6) > sed -i -e 's/localhost/\/var\/run\/cups\/cups.sock/g' /etc/cups/client.conf Here the problem was as described in the first comment (1.3.9-r1 works, 1.3.10-r1 doesn't with the same config files). However, printing worked both in Acroread AND Openoffice(-bin) which displayed the printer while the other applications could not. I solved it by starting a new client.conf: ServerName /var/run/cups/cups.sock This is basically the same as comment #6, but somehow I missed it when I first read this bug report so I had to figure it out by myself. :-) In my case, serverName with 1.3.9-r1 was the workstation's DNS name, and I believe this is what caused the trouble. Strangely enough, to put "HostNameLookups On" in cupsd.conf didn't work for me, neither with the fqdn nor with localhost. And /etc/hosts is ok, in case you wonder... (In reply to comment #27) > > > ServerAlias * > > restored my remote printing (use cups to print on two remote printers) with > cups 1.3.10-r1 > I have tried everything mentioned in this thread, in various configurations, and restarting my xfce4 session, but nothing works. Firefox-bin is still oblivious to my printers. Thunderbird-bin, OpenOffice-bin and evince all work fine. I even used ~amd64 to get cups-1.3.10-r2, but no printing in FF. Any more tips? |
