Changed to Confirmed and setting release blocker for Jaunty as printing
is a critical task.

Other users on Jaunty besides myself are also experiencing this problem,
refer:

http://ubuntuforums.org/showthread.php?p=6935889

This is also occuring on Jaunty where On Jaunty. When trying to setup my
samsung laser printer, the device appeared to correctly be identified
and the appropriate driver installed. Users are able to change device
preferences. However when actually trying to print, the job will stall
at processing and the error message "(Printer Name) May Not Be Connected
is displayed. No printing will occur.

I have run the apport sudo ubuntu-bug cups to hopefully get releated
info to the devs for fixing.

>From the info provided below, its clear that the system knows the device
is on USB.

null...@ppp:~$ lsmod | grep usb
usblp                  22656  0 
usbhid                 47040  0 

null...@ppp:~$ tail -f /var/log/messages
Mar 22 17:28:54 PPP g15daemon[2551]: Booting plugin "Clock"
Mar 22 17:28:54 PPP g15daemon[2551]: Booting plugin "Linux UINPUT Keyboard 
Output"
Mar 22 17:28:54 PPP g15daemon[2551]: Booting plugin "LCDServer"
Mar 22 17:28:56 PPP kernel: [   17.805517] Bluetooth: BNEP (Ethernet Emulation) 
ver 1.3
Mar 22 17:28:56 PPP kernel: [   17.805520] Bluetooth: BNEP filters: protocol 
multicast
Mar 22 17:28:56 PPP kernel: [   17.845484] Bridge firewalling registered
Mar 22 17:28:58 PPP kernel: [   19.392653] ppdev: user-space parallel port 
driver
Mar 22 17:29:02 PPP kernel: [   23.252745] eth0: link up, 100Mbps, full-duplex, 
lpa 0xC1E1
Mar 22 17:29:13 PPP pulseaudio[3485]: alsa-util.c: Cannot find fallback mixer 
control "PCM" or mixer control is no combination of switch/volume.
Mar 22 17:48:52 PPP -- MARK --
Mar 22 17:49:29 PPP kernel: [ 1250.816170] usb 3-2: USB disconnect, address 3
Mar 22 17:49:29 PPP kernel: [ 1250.818087] usblp0: removed
Mar 22 17:49:41 PPP kernel: [ 1263.456023] usb 3-2: new full speed USB device 
using uhci_hcd and address 6
Mar 22 17:49:42 PPP kernel: [ 1263.652117] usb 3-2: configuration #1 chosen 
from 1 choice
Mar 22 17:49:42 PPP kernel: [ 1263.680120] usblp0: USB Bidirectional printer 
dev 6 if 0 alt 0 proto 2 vid 0x04E8 pid 0x327E
^C


null...@ppp:~$ lpinfo -v
network socket
network beh
direct hpfax
direct hp
network http
network ipp
network lpd
direct 
hal:///org/freedesktop/Hal/devices/usb_device_4e8_327e_3V54BKEL510850E__if0_printer_noserial
direct usb://Samsung/ML-2510%20Series
direct scsi
network smb

I put apparmor into complain mode and see this in the log:

null...@ppp:~$ sudo aa-complain cupsd
[sudo] password for nullack: 
Setting /etc/apparmor.d/usr.sbin.cupsd to complain mode.

Mar 22 17:52:35 PPP kernel: [ 1437.009253] type=1505 audit(1237704755.463:10): 
operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" 
name2="default" pid=5029
Mar 22 17:52:35 PPP kernel: [ 1437.009672] type=1505 audit(1237704755.463:11): 
operation="profile_replace" name="/usr/sbin/cupsd" name2="default" pid=5029


** Changed in: cups (Ubuntu)
       Status: New => Confirmed

-- 
Printer not connected
https://bugs.launchpad.net/bugs/314106
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