Unable to connect to dbus session bus. Exiting.

I am using hp 1020, on fedora 9.
Problem is if i switch off printer and then switch it on I can not print!
service cups restart does not help
hp-firmware does not work
the system needs to be restarted
Thanks Deepak

Please run hp-check -t and post the output.

Thanks!

Aaron

Initializing. Please wait...

---------------
| SYSTEM INFO |
---------------

Basic system information:
Linux linux.office.local 2.6.25.14-108.fc9.i686 #1 SMP Mon Aug 4 14:08:11 EDT 2008 i686 i686 i386 GNU/Linux

Distribution:
fedora 9

HPOJ running?
No, HPOJ is not running (OK).

Checking Python version...
OK, version 2.5.1 installed

Checking PyQt version...
OK, version 3.17 installed.

Checking SIP version...
OK, Version 4.7.4 installed

Checking for CUPS...
Status: scheduler is running
Version: 1.3.7
error_log is set to level: debug

Checking for dbus/python-dbus...
dbus daemon is running.
python-dbus version: 0.83.0

------------------------------------
| COMPILE AND RUNTIME DEPENDENCIES |
------------------------------------

note: To check for compile-time only dependencies, re-run hp-check with the -c parameter (ie, hp-check -c).
note: To check for run-time only dependencies, re-run hp-check with the -r parameter (ie, hp-check -r).

Checking for dependency: cups - Common Unix Printing System...
OK, found.

Checking for dependency: cups-ddk - CUPS driver development kit...
OK, found.

Checking for dependency: cups-devel- Common Unix Printing System development files...
OK, found.

Checking for dependency: dbus - Message bus system...
OK, found.

Checking for dependency: gcc - GNU Project C and C++ Compiler...
OK, found.

Checking for dependency: GhostScript - PostScript and PDF language interpreter and previewer...
OK, found.

Checking for dependency: libcrypto - OpenSSL cryptographic library...
OK, found.

Checking for dependency: libjpeg - JPEG library...
OK, found.

Checking for dependency: libnetsnmp-devel - SNMP networking library development files...
OK, found.

Checking for dependency: libpthread - POSIX threads library...
OK, found.

Checking for dependency: libtool - Library building support services...
OK, found.

Checking for dependency: libusb - USB library...
OK, found.

Checking for dependency: make - GNU make utility to maintain groups of programs...
OK, found.

Checking for dependency: PIL - Python Imaging Library (required for commandline scanning with hp-scan)...
OK, found.

Checking for dependency: ppdev - Parallel port support kernel module....
OK, found.

Checking for dependency: PyQt 3- Qt interface for Python (for Qt version 3.x)...
OK, found.

Checking for dependency: PyQt 4- Qt interface for Python (for Qt version 4.x)...
OK, found.

Checking for dependency: python-ctypes - A foreign function library for Python...
OK, found.

Checking for dependency: python-dbus - Python bindings for dbus...
OK, found.

Checking for dependency: python-devel - Python development files...
OK, found.

Checking for dependency: Python 2.3 or greater - Required for fax functionality...
OK, found.

Checking for dependency: Python 2.2 or greater - Python programming language...
OK, found.

Checking for dependency: Reportlab - PDF library for Python...
OK, found.

Checking for dependency: SANE - Scanning library...
OK, found.

Checking for dependency: SANE - Scanning library development files...
OK, found.

Checking for dependency: scanimage - Shell scanning program...
OK, found.

Checking for dependency: xsane - Graphical scanner frontend for SANE...
OK, found.

----------------------
| HPLIP INSTALLATION |
----------------------

Currently installed HPLIP version...
HPLIP 2.8.9 currently installed in '/usr/share/hplip'.

Current contents of '/etc/hp/hplip.conf' file:
[dirs]
run = /var/run
cupsbackend = /usr/lib/cups/backend
ppd = /usr/share/cups/model/HP
doc = /usr/share/doc/hplip-2.8.9
drv = /usr/share/cups/drv/hp/
ppdbase = /usr/share/cups/model
home = /usr/share/hplip
cupsfilter = /usr/lib/cups/filter
icon = /usr/share/applications

[hplip]
version = 2.8.9
plugin = 1

[configure]
foomatic-rip-hplip-install = yes
foomatic-ppd-install = no
doc-build = yes
cups11-build = no
gui-build = yes
internal-tag = 2.8.9.0
foomatic-drv-install = yes
pp-build = no
ui-toolkit = qt3
scanner-build = yes
network-build = yes
restricted-build = no
dbus-build = yes
shadow-build = no
fax-build = yes

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

  Device URI Model
  -------------------------------- ----------------
  hp:/usb/HP_LaserJet_1020?serial= HP LaserJet 1020
  JL2EPYV

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

HP_LaserJet_1020
----------------
Type: Printer
Installed in HPLIP?: Yes, using the hp: CUPS backend.
Device URI: hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
PPD: /etc/cups/ppd/HP_LaserJet_1020.ppd
PPD Description: HP LaserJet 1020 Foomatic/hpijs-ZJS (recommended)
Printer status: printer HP_LaserJet_1020 is idle. enabled since Wed 29 Oct 2008 11:54:45 AM IST
error: Required plug-in status: Not installed
Communication status: Good

HP_LaserJet_10202
-----------------
Type: Unknown
Installed in HPLIP?: No, not using the hp: or hpfax: CUPS backend.
Device URI: ipp://linux.office.local:631/printers/HP_LaserJet_1020

----------------------
| SANE CONFIGURATION |
----------------------

'hpaio' in '/etc/sane.d/dll.conf'...
OK, found. SANE backend 'hpaio' is properly set up.

Checking output of 'scanimage -L'...

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

---------------------
| PYTHON EXTENSIONS |
---------------------

Checking 'cupsext' CUPS extension...
OK, found.

Checking 'pcardext' Photocard extension...
OK, found.

Checking 'hpmudext' I/O extension...
OK, found.

Checking 'scanext' SANE scanning extension...
OK, found.

-----------------
| USB I/O SETUP |
-----------------

Checking for permissions of USB attached printers...

HP Device 0x2b17 at 002:004:
    Device URI: hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
    Device node: /dev/bus/usb/002/004
    Mode: 0666
getfacl: Removing leading '/' from absolute path names
# file: dev/bus/usb/002/004
# owner: root
# group: lp
user::rw-
group::rw-
other::rw-

-----------
| SUMMARY |
-----------

error: 1 error or warning.

Please refer to the installation instructions at:
http://hplip.sourceforge.net/install/index.html

The Printer is not working
Regards
Deepak

if i run hp-firmware:
 hp-firmware

HP Linux Imaging and Printing System (ver. 2.8.9)
Firmware Download Utility ver. 2.2

Copyright (c) 2001-8 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

error: Channel write error
error: An error occured: Device I/O error
error: Firmware download failed.

After giving the following commands :
service cups stop
service cups start
hp-firmware
( service cups restart does not have any effect)
the firmware loads and the printer works!

and

hp-check -t output is as follows:

Initializing. Please wait...

---------------
| SYSTEM INFO |
---------------

Basic system information:
Linux linux.office.local 2.6.25.14-108.fc9.i686 #1 SMP Mon Aug 4 14:08:11 EDT 2008 i686 i686 i386 GNU/Linux

Distribution:
fedora 9

HPOJ running?
No, HPOJ is not running (OK).

Checking Python version...
OK, version 2.5.1 installed

Checking PyQt version...
OK, version 3.17 installed.

Checking SIP version...
OK, Version 4.7.4 installed

Checking for CUPS...
Status: scheduler is running
Version: 1.3.7
error_log is set to level: debug

Checking for dbus/python-dbus...
dbus daemon is running.
python-dbus version: 0.83.0

------------------------------------
| COMPILE AND RUNTIME DEPENDENCIES |
------------------------------------

note: To check for compile-time only dependencies, re-run hp-check with the -c parameter (ie, hp-check -c).
note: To check for run-time only dependencies, re-run hp-check with the -r parameter (ie, hp-check -r).

Checking for dependency: cups - Common Unix Printing System...
OK, found.

Checking for dependency: cups-ddk - CUPS driver development kit...
OK, found.

Checking for dependency: cups-devel- Common Unix Printing System development files...
OK, found.

Checking for dependency: dbus - Message bus system...
OK, found.

Checking for dependency: gcc - GNU Project C and C++ Compiler...
OK, found.

Checking for dependency: GhostScript - PostScript and PDF language interpreter and previewer...
OK, found.

Checking for dependency: libcrypto - OpenSSL cryptographic library...
OK, found.

Checking for dependency: libjpeg - JPEG library...
OK, found.

Checking for dependency: libnetsnmp-devel - SNMP networking library development files...
OK, found.

Checking for dependency: libpthread - POSIX threads library...
OK, found.

Checking for dependency: libtool - Library building support services...
OK, found.

Checking for dependency: libusb - USB library...
OK, found.

Checking for dependency: make - GNU make utility to maintain groups of programs...
OK, found.

Checking for dependency: PIL - Python Imaging Library (required for commandline scanning with hp-scan)...
OK, found.

Checking for dependency: ppdev - Parallel port support kernel module....
OK, found.

Checking for dependency: PyQt 3- Qt interface for Python (for Qt version 3.x)...
OK, found.

Checking for dependency: PyQt 4- Qt interface for Python (for Qt version 4.x)...
OK, found.

Checking for dependency: python-ctypes - A foreign function library for Python...
OK, found.

Checking for dependency: python-dbus - Python bindings for dbus...
OK, found.

Checking for dependency: python-devel - Python development files...
OK, found.

Checking for dependency: Python 2.3 or greater - Required for fax functionality...
OK, found.

Checking for dependency: Python 2.2 or greater - Python programming language...
OK, found.

Checking for dependency: Reportlab - PDF library for Python...
OK, found.

Checking for dependency: SANE - Scanning library...
OK, found.

Checking for dependency: SANE - Scanning library development files...
OK, found.

Checking for dependency: scanimage - Shell scanning program...
OK, found.

Checking for dependency: xsane - Graphical scanner frontend for SANE...
OK, found.

----------------------
| HPLIP INSTALLATION |
----------------------

Currently installed HPLIP version...
HPLIP 2.8.9 currently installed in '/usr/share/hplip'.

Current contents of '/etc/hp/hplip.conf' file:
[dirs]
run = /var/run
cupsbackend = /usr/lib/cups/backend
ppd = /usr/share/cups/model/HP
doc = /usr/share/doc/hplip-2.8.9
drv = /usr/share/cups/drv/hp/
ppdbase = /usr/share/cups/model
home = /usr/share/hplip
cupsfilter = /usr/lib/cups/filter
icon = /usr/share/applications

[hplip]
version = 2.8.9
plugin = 1

[configure]
foomatic-rip-hplip-install = yes
foomatic-ppd-install = no
doc-build = yes
cups11-build = no
gui-build = yes
internal-tag = 2.8.9.0
foomatic-drv-install = yes
pp-build = no
ui-toolkit = qt3
scanner-build = yes
network-build = yes
restricted-build = no
dbus-build = yes
shadow-build = no
fax-build = yes

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

  Device URI Model
  --------------------------------------- -------------------------
  hp:/usb/HP_LaserJet_1020?serial=JL2EPYV HP LaserJet 1020

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

HP_LaserJet_1020
----------------
Type: Printer
Installed in HPLIP?: Yes, using the hp: CUPS backend.
Device URI: hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
PPD: /etc/cups/ppd/HP_LaserJet_1020.ppd
PPD Description: HP LaserJet 1020 Foomatic/hpijs-ZJS (recommended)
Printer status: printer HP_LaserJet_1020 now printing HP_LaserJet_1020-139. enabled since Thu 30 Oct 2008 11:38:37 AM IST
error: Required plug-in status: Not installed
error: Device busy: hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
error: Device not found

HP_LaserJet_10202
-----------------
Type: Unknown
Installed in HPLIP?: No, not using the hp: or hpfax: CUPS backend.
Device URI: ipp://linux.office.local:631/printers/HP_LaserJet_1020

----------------------
| SANE CONFIGURATION |
----------------------

'hpaio' in '/etc/sane.d/dll.conf'...
OK, found. SANE backend 'hpaio' is properly set up.

Checking output of 'scanimage -L'...

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

---------------------
| PYTHON EXTENSIONS |
---------------------

Checking 'cupsext' CUPS extension...
OK, found.

Checking 'pcardext' Photocard extension...
OK, found.

Checking 'hpmudext' I/O extension...
OK, found.

Checking 'scanext' SANE scanning extension...
OK, found.

-----------------
| USB I/O SETUP |
-----------------

Checking for permissions of USB attached printers...

HP Device 0x2b17 at 002:005:
    Device URI: hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
    Device node: /dev/bus/usb/002/005
    Mode: 0666
getfacl: Removing leading '/' from absolute path names
# file: dev/bus/usb/002/005
# owner: root
# group: lp
user::rw-
group::rw-
other::rw-

-----------
| SUMMARY |
-----------

error: 2 errors and/or warnings.

It looks like the plug-in is not installed.

Try running

hp-plugin

any better?

Thanks!

Aaron

when ever the printer stops i have to re-run hp-plugin. The printer then works for a few days and then stops working until I run hp-plugin again.

The issue is not resolved as I have stated that I have to repeat the process every few days! and the Unable to connect to dbus session bus error continues

Today the printer just did not work, so i ran hp-setup again after running hp-plugin. Following is output

hp-plugin downloaded but could not load on account of

Downloading firmware to device hp:/usb/HP_LaserJet_1020?serial=JL2EPYV...
error: Channel write error
error: An error occured: Device I/O error

 hp-setup

HP Linux Imaging and Printing System (ver. 2.8.9)
Printer/Fax Setup Utility ver. 8.0

Copyright (c) 2001-8 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

\error: Channel write error
Traceback (most recent call last):
  File "/usr/share/hplip/ui/setupform.py", line 976, in accept
    if d.isIdleAndNoError():
  File "/usr/share/hplip/base/device.py", line 1877, in isIdleAndNoError
    self.queryDevice(quick=True)
  File "/usr/share/hplip/base/device.py", line 1582, in queryDevice
    status_block = status.StatusType8(self)
  File "/usr/share/hplip/base/status.py", line 1306, in StatusType8
    dev.writePrint("\x1b%-12345X@PJL INFO STATUS \r\n\x1b%-12345X")
  File "/usr/share/hplip/base/device.py", line 2058, in writePrint
    return self.__writeChannel(self.openPrint, data)
  File "/usr/share/hplip/base/device.py", line 2089, in __writeChannel
    raise Error(ERROR_DEVICE_IO_ERROR)
base.g.Error: ('Device I/O error', 12)

Done.

Nov 6 15:41:35 linux kernel: usb 2-1.4: Product: HP LaserJet 1020
Nov 6 15:41:35 linux kernel: usb 2-1.4: Manufacturer: Hewlett-Packard
Nov 6 15:41:35 linux kernel: usb 2-1.4: SerialNumber: JL2EPYV
Nov 6 15:41:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 135: unable get_string_descriptor -1: Operation not permitted
Nov 6 15:41:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 603: invalid product id string ret=-1
Nov 6 15:41:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 1104: unable to open hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
Nov 6 15:41:36 linux HP_LaserJet_1020?serial=JL2EPYV: prnt/backend/hp.c 675: INFO: open device failed; will retry in 30 seconds...
Nov 6 15:41:41 linux kernel: type=1400 audit(1225966301.720:30): avc: denied { getattr } for pid=4171 comm="python" path="/root/.hplip/hplip.conf" dev=sda5 ino=5373958 scontext=system_u:system_r:hplip_t:s0 tcontext=unconfined_u:object_r:admin_home_t:s0 tclass=file
Nov 6 15:41:41 linux kernel: type=1400 audit(1225966301.750:31): avc: denied { read } for pid=4171 comm="python" name="hplip.conf" dev=sda5 ino=5373958 scontext=system_u:system_r:hplip_t:s0 tcontext=unconfined_u:object_r:admin_home_t:s0 tclass=file
Nov 6 15:41:43 linux kernel: type=1400 audit(1225966303.295:32): avc: denied { write } for pid=4171 comm="python" name="hplip.conf" dev=sda5 ino=5373958 scontext=system_u:system_r:hplip_t:s0 tcontext=unconfined_u:object_r:admin_home_t:s0 tclass=file
Nov 6 15:42:06 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 135: unable get_string_descriptor -1: Operation not permitted
Nov 6 15:42:06 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 603: invalid product id string ret=-1
Nov 6 15:42:06 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 1104: unable to open hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
Nov 6 15:42:06 linux HP_LaserJet_1020?serial=JL2EPYV: prnt/backend/hp.c 675: INFO: open device failed; will retry in 30 seconds...
Nov 6 15:42:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 135: unable get_string_descriptor -1: Operation not permitted
Nov 6 15:42:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 603: invalid product id string ret=-1
Nov 6 15:42:36 linux HP_LaserJet_1020?serial=JL2EPYV: io/hpmud/musb.c 1104: unable to open hp:/usb/HP_LaserJet_1020?serial=JL2EPYV
Nov 6 15:42:36 linux HP_LaserJet_1020?serial=JL2EPYV: prnt/backend/hp.c 675: INFO: open device failed; will retry in 30 seconds...

Try following the steps on step 7 of this page:

http://hplipopensource.com/hplip-web/install/manual/distros/mandriva.html

Because this seems to be a permissions problem, and the steps on step 7 for mandriva should resolve it..

Hope this helps.

Aaron

mandriva ? I am using Fedora !

This question was expired because it remained in the 'Open' state without activity for the last 15 days.