[feisty] USB printers not detected - user "cupsys" not in group "plugdev"

[Mikael Nilsson]

Binary package hint: cupsys

As discussed here:

http://www.cups.org/newsgroups.php?gcups.bugs+v:5147

my USB printer is not detected, as user "lp" (the user cups runs under) is not in group "plugdev".

A simple "sudo adduser lp plugdev" and restart of cups fixes the issue.

EDIT: Seems that the "lp" user should not be used in cupsd.conf, that is another bug in another package. But even with the "cupsys" user, the bug persists. Thus, doing "sudo adduser cupsys plugdev" should work.

[Mikael Nilsson (mini)]

Hmm, tracing this to my cupsd.conf, having

User lp

should be User=cupsys, I think...

I don't remember ever having changed that...

[Mikael Nilsson (mini)]

The correct link to the message is

http://www.cups.org/newsgroups.php?gcups.bugs+v:5147

[Patrice Vetsel (vetsel-patrice)]

Same problem here.

[Patrice Vetsel (vetsel-patrice)]

Pitti is investigating the problem. Seems to be somewhere in the udev rules

[Patrice Vetsel (vetsel-patrice)]

temporary workaround is to do :
sudo addgroup cupsys plugdev
sudo /etc/init.d/cupsys restart

[queny (queny)]

Just confirming I experienced the same issue with a canon i865 and MP600, and above temp workaround is indeed successful.

By the way, as I was searching for an answer in other places I saw references to a dev/usb folder-if it matters I have no such folder, just usbdevX.X epXX files in the dev folder. I'm an absolute newbie to linux and frankly have no idea of the likely relevance.