required plug-in fails to install. Kubuntu 10.04, HPLIP 3.10.2

[David]

Linux Distribution & Version: Kubuntu 10.04
Printer make/model: Color LaserJet CM1312nfi MFP

output of hp-check -t
***********************************************
HP Linux Imaging and Printing System (ver. 3.10.2)
Dependency/Version Check Utility ver. 14.3

Copyright (c) 2001-9 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.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
has the proper dependencies installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode
will check both of the above cases (both compile- and run-time dependencies).

Saving output in log file: hp-check.log

Initializing. Please wait...

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

Basic system information:
Linux Home-Net 2.6.32-24-generic #43-Ubuntu SMP Thu Sep 16 14:58:24 UTC 2010 x86_64 GNU/Linux

Distribution:
ubuntu 10.04

Checking Python version...
OK, version 2.6.5 installed

Checking PyQt 4.x version...
OK, version 4.7.2 installed.

Checking for CUPS...
Status: scheduler is running
Version: 1.4.3
error_log is set to level: warn

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 devel- Common Unix Printing System development files...
OK, found.

Checking for dependency: CUPS image - CUPS image development files...
error: NOT FOUND! This is a REQUIRED/COMPILE TIME ONLY dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libcupsimage2-dev

Checking for dependency: DBus - Message bus system...
error: NOT FOUND! This is a REQUIRED dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libdbus-1-dev

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...
error: NOT FOUND! This is a REQUIRED dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libjpeg62-dev

Checking for dependency: libnetsnmp-devel - SNMP networking library development files...
error: NOT FOUND! This is a REQUIRED dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libsnmp-dev

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

Checking for dependency: libtool - Library building support services...
error: NOT FOUND! This is a REQUIRED/COMPILE TIME ONLY dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libtool

Checking for dependency: libusb - USB library...
error: NOT FOUND! This is a REQUIRED dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libusb-dev

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: PolicyKit - Administrative policy framework...
OK, found.

Checking for dependency: PyQt 4 DBus - DBus Support for PyQt4...
OK, found.

Checking for dependency: Python DBus - Python bindings for DBus...
OK, found.

Checking for dependency: Python devel - Python development files...
error: NOT FOUND! This is a REQUIRED/COMPILE TIME ONLY dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes python-dev

Checking for dependency: Python libnotify - Python bindings for the libnotify Desktop notifications...
warning: NOT FOUND! This is an OPTIONAL/RUNTIME ONLY dependency. Some HPLIP functionality may not function properly.
To install this dependency, execute this command:
sudo aptitude install --assume-yes python-notify

Checking for dependency: Python XML libraries...
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...
error: NOT FOUND! This is a REQUIRED/COMPILE TIME ONLY dependency. Please make sure that this dependency is installed before installing or running HPLIP.
To install this dependency, execute this command:
sudo aptitude install --assume-yes libsane-dev

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 3.10.2 currently installed in '/usr/share/hplip'.

Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.10.2

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/hplip/HP
ppdbase=/usr/share/ppd/hplip
doc=/usr/share/doc/hplip-doc/HTML
icon=no
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv

# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
pp-build=yes
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
hpijs-install=yes
foomatic-drv-install=yes
foomatic-ppd-install=yes
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.10.2rc1.9
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=yes
hpijs-only-build=no
lite-build=no
udev-acl-rules=yes
hpcups-only-build=no
hpijs-only-build=no

Current contents of '/var/lib/hp/hplip.state' file:
# hplip.state - HPLIP runtime persistent variables.

[plugin]
installed=0
eula=0

Current contents of '~/.hplip/hplip.conf' file:
[last_used]
printer_name = HP_Color_LaserJet_CM1312nfi_MFP
printer =
working_dir = .
device_uri = "hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F"

[commands]
fax = hp-sendfax -d %FAX_URI%
cpy = hp-makecopies -d %DEVICE_URI%
scan = xsane -V %SANE_URI%
prnt = hp-print -p%PRINTER%
pcard_int = True
prnt_int = True
pcard = hp-unload -d %DEVICE_URI%
scan_int = False
fax_int = True
cpy_int = True

[installation]
version = 3.10.2rc1.9
date_time = 09/18/10 19:56:26

[settings]
systray_messages = 0
systray_visible = 0

[alerts]
email_from_address =
email_alerts = False
email_to_addresses =

[fax]
email_address = <email address hidden>
voice_phone = 301-330-5467

[refresh]
rate = 30
enable = true
type = 2

[polling]
enable = false
device_list =
interval = 5

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

  Device URI Model
  -------------------------------- -------------------------------
  hp:/usb/Deskjet_5700?serial=TH54 HP Deskjet 5700
  U111K1049M
  hp:/usb/HP_LaserJet_1220?serial= HP LaserJet 1220
  00CNBRK07768
  hp:/usb/HP_Color_LaserJet_CM1312 HP Color LaserJet CM1312nfi MFP
  nfi_MFP?serial=00CNB886R67F

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

Deskjet-5700
------------
Type: Printer
Device URI: hp:/usb/Deskjet_5700?serial=TH54U111K1049M
PPD: /etc/cups/ppd/Deskjet-5700.ppd
PPD Description: HP Deskjet 5700 hpijs, 3.10.2
Printer status: printer Deskjet-5700 is idle. enabled since Sun 11 Jul 2010 03:51:09 PM EDT
Communication status: Good

HP-Color-LaserJet-CM1312nfi-MFP
-------------------------------
Type: Printer
Device URI: hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F
PPD: /etc/cups/ppd/HP-Color-LaserJet-CM1312nfi-MFP.ppd
PPD Description: HP Color LaserJet cm1312nfi MFP hpijs pcl3, 3.10.2rc1.9
Printer status: printer HP-Color-LaserJet-CM1312nfi-MFP is idle. enabled since Tue 17 Aug 2010 11:54:22 AM EDT
error: Required plug-in status: Not installed
Communication status: Good

HP-Color-LaserJet-CM1312nfi-MFP-Fax-2
-------------------------------------
Type: Fax
Device URI: hpfax:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F
PPD: /etc/cups/ppd/HP-Color-LaserJet-CM1312nfi-MFP-Fax-2.ppd
PPD Description: HP Fax2 hpijs
Printer status: printer HP-Color-LaserJet-CM1312nfi-MFP-Fax-2 is idle. enabled since Thu 05 Aug 2010 07:21:33 PM EDT
error: Required plug-in status: Not installed
Communication status: Good

HP-LaserJet-1220
----------------
Type: Unknown
Device URI: usb://HP/LaserJet%201220
PPD: /etc/cups/ppd/HP-LaserJet-1220.ppd
PPD Description: HP LaserJet 1220 Postscript (recommended)
Printer status: printer HP-LaserJet-1220 is idle. enabled since Sat 18 Sep 2010 07:40:3Sent print file, 2296 bytes...
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend to function in HPLIP.

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

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

Checking output of 'scanimage -L'...
device `epson2:libusb:001:011' is a Epson GT-8300 flatbed scanner
device `hpaio:/usb/HP_LaserJet_1220?serial=00CNBRK07768' is a Hewlett-Packard HP_LaserJet_1220 all-in-one
device `hpaio:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F' is a Hewlett-Packard HP_Color_LaserJet_CM1312nfi_MFP all-in-one

---------------------
| 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 0x8104 at 003:003:
    Device URI: hp:/usb/Deskjet_5700?serial=TH54U111K1049M
    Device node: /dev/bus/usb/003/003
    Mode: 0664

HP Device 0x417 at 001:008:
    Device URI: hp:/usb/HP_LaserJet_1220?serial=00CNBRK07768
    Device node: /dev/bus/usb/001/008
    Mode: 0664

HP Device 0x4f17 at 001:007:
    Device URI: hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F
    Device node: /dev/bus/usb/001/007
    Mode: 0664

---------------
| USER GROUPS |
---------------

terry adm dialout cdrom plugdev lpadmin admin sambashare vboxusers

error: User needs to be member of group 'lp' to enable print, scan & fax.
User member of group 'lpadmin'.

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

error: 12 errors and/or warnings.

Summary of needed commands to run to satisfy missing dependencies:
sudo aptitude install --assume-yes libcupsimage2-dev
sudo aptitude install --assume-yes libdbus-1-dev
sudo aptitude install --assume-yes libjpeg62-dev
sudo aptitude install --assume-yes libsnmp-dev
sudo aptitude install --assume-yes libtool
sudo aptitude install --assume-yes libusb-dev
sudo aptitude install --assume-yes python-dev
sudo aptitude install --assume-yes python-notify
sudo aptitude install --assume-yes libsane-dev

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

Done.
***************************************
Problem: Required Plug-in fails to install.

To recreate: run HP Device Manager under Kubuntu with the specified make/model. Click on "Install Required Plugin" and follow the steps to download and install. Window pops up that plugin failed to install.

Help needed: how to install required plugin

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Please run "hp-plugin -g" and post the output.

Thanks,
Naga Samrat Chowdary, Narla

[David (fastsnip-bcard)]

 hp-plugin -g

HP Linux Imaging and Printing System (ver. 3.10.2)
Plugin Download and Install Utility ver. 2.1

Copyright (c) 2001-9 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.

hp-plugin[2505]: debug: Unable to open file installer/distros.dat for reading.
hp-plugin[2505]: debug: []
hp-plugin[2505]: debug: Plug-in version=3.10.2
hp-plugin[2505]: debug: Plug-in=hplip-3.10.2-plugin.run
hp-plugin[2505]: debug: Loading user settings...
hp-plugin[2505]: debug: FAB command: /usr/bin/hp-fab
hp-plugin[2505]: debug: Scan command: xsane -V %SANE_URI%
hp-plugin[2505]: debug: Auto refresh: True
hp-plugin[2505]: debug: Auto refresh rate: 30
hp-plugin[2505]: debug: Auto refresh type: 2
hp-plugin[2505]: debug: Systray visible: 0
hp-plugin[2505]: debug: Systray messages: 0
hp-plugin[2505]: debug: Last used device URI: hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CNB886R67F
hp-plugin[2505]: debug: Last used printer: HP_Color_LaserJet_CM1312nfi_MFP
hp-plugin[2505]: debug: Working directory: .
hp-plugin[2505]: debug: Starting GUI loop...
hp-plugin[2505]: debug: Plugin.conf url: http://hplip.sf.net/plugin.conf
Checking for network connection...
hp-plugin[2505]: debug: /usr/bin/wget --timeout=10 --output-document=- http://www.google.com
hp-plugin[2505]: debug: --2010-09-19 16:33:38-- http://www.google.com/
Resolving www.google.com... 72.14.204.103, 72.14.204.104, 72.14.204.147, ...
Connecting to www.google.com|72.14.204.103|:80...
hp-plugin[2505]: debug: connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: `STDOUT'

    [<=> ] 0 --.-K/s <!doctype html><html><head><meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><title>Google</title><script>window.google={kEI:"pXOWTLq2KoOmeIPRwMsG",kEXPI:"25856,26515",kCSI:{e:"25856,26515",ei:"pXOWTLq2KoOmeIPRwMsG",expi:"25856,26515"},ml:function(){},kHL:"en",time:function(){return(new Date).getTime()},log:function(b,d,c){var a=new Image,e=google,g=e.lc,f=e.li;a.onerror=(a.onload=(a.onabort=function(){delete g[f]}));g[f]=a;c=c||"/gen_204?atyp=i&ct="+b+"&cad="+d+"&zx="+google.time();a.src=c;e.li=f+1},lc:[],li:0,Toolbelt:{}};
window.google.sn="webhp";window.google.timers={load:{t:{start:(new Date).getTime()}}};try{}catch(u){}window.google.jsrt_kill=1;
var _gjwl=location;function _gjuc(){var e=_gjwl.href.indexOf("#");if(e>=0){var a=_gjwl.href.substring(e);if(a.indexOf("&q=")>0||a.indexOf("#q=")>=0){a=a.substring(1);if(a.indexOf("#")==-1){for(var c=0;c<a.length;){var d=c;if(a.charAt(d)=="&")++d;var b=a.indexOf("&",d);if(b==-1)b=a.length;var f=a.substring(d,b);if(f.indexOf("fp=")==0){a=a.substring(0,c)+a.substring(b,a.length);b=c}else if(f=="cad=h")return 0;c=b}_gjwl.href="/search?"+a+"&cad=h";return 1}}}return 0}function _gjp(){!(window._gjwl.hash&&
window._gjuc())&&setTimeout(_gjp,500)};
window._gjp &&...

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Hi David,

I have link the existing answers to this bug.
Can you please try the comments given in answers linked to this bug.

Thanks,
Naga Samrat Chowdary, Narla

[Naga Samrat Chowdary, Narla (samrat-hplip)]

As workaround, once you have hplip-3.10.6-plugin.run file in /tmp directory, you can install plugin by running "sh hplip-3.10.6-plugin.run"

Thanks,
Naga Samrat Chowdary, Narla

[David (fastsnip-bcard)]

Naga - in the first comment you say you have linked to answers to this bug - where is the link? The link is not visible to me.

Your workaround is for HPLIP 3.10.6. 3.10.2 is the current version in Kubuntu 10.04. Does the 3.10.6 plug in work for 3.10.2 also. If so where do I get the 3.10.6 plug in?

Thanks for helping.

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Questions i had linked are in "Related Questions" Section of this page.
Can you please go through those links.

As workaround, Please execute the following.

wget http://www.linuxprinting.org/download/printdriver/auxfiles/HP/plugins/hplip-3.10.2-plugin.run
sh hplip-3.10.2-plugin.run

Thanks,
Naga Samrat Chowdary, Narla

[David (fastsnip-bcard)]

Read all of the posts on the Related Questions" and they report the same problem and I didn't see any solution there either.

Ran wget and downloaded the pluin file. Then ran the shell command as you specified.

Got a segmentation fault and the reported failure to create a file under '~/.config/ibus/bus'

Found out that (K)Ubuntu does not install ibus by default and your plug in installation doesn't bother to check if it is install and install if not.

Installed ibus and ran your shell command again - same segmentation fault. Output follows:

sh hplip-3.10.2-plugin.run
Verifying archive integrity... All good.
Uncompressing HPLIP 3.10.2 Plugin Self Extracting Archive...................................

HP Linux Imaging and Printing System (ver. 3.10.2)
Plugin Installer ver. 3.0

Copyright (c) 2001-9 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.

Plug-in version: 3.10.2
Installed HPLIP version: 3.10.2
Number of files to install: 30

./hplip-plugin-install: line 4: 5454 Segmentation fault python ./plugin_install.py $*

So the python script seems to have a serious error that has not yet been diagnosed and/or understood
.

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Can you please install hplip-3.10.6.run file.
please download it from http://hplipopensource.com/hplip-web/install/install/index.html

Thanks,
Naga Samrat Chowdary, Narla

[David (fastsnip-bcard)]

I will do that ONLY if you cannot fix the bug in 3.10.2 which is the current version for Kubuntu 10.04.

I used to install all new versions of software when they came out. This practice got me totally out of step with the current version for a distribution. This made upgrading to new distribution upgrades a nightmare. A lot of my software was so out of step with the distribution that maintaining it was a real headache.

I no longer try to keep the latest releases for this reason. I stay with what is current for the current distribution software. That lets the distribution developers keep up with software releases and work out bugs with the distribution from one distribution upgrade to the next.

This bug has been in HPLIP for at least 2 upgrades of Kubuntu and I have posted about it previously on previous versions of Kubuntu and it has not been fixed.

So I have little to no confidence that my getting out of synch with the Kubuntu developers is going to buy me anything.

If you cannot fix it by 3.10.2, why should I believe that you have fixed it in 3.10.6?

I currently have 3 different HP printers and have stuck with HP printers because of the support received in the past. Please tell me that you are capable of fixing the bug for 3.10.2.

[David (fastsnip-bcard)]

Upgraded to Kubuntu 10.10 which uses HPLIP 3.10.6.

Immediately tried to install the plug-in

Got the plug-in failed message again.

So it would seem that this bug which has been around for a few years and which I reported here a few years back, has still not been fixed.

So I downloaded the plug-in for 3.10.6 which you pointed to above and ran it.

Here is the output. Not sure if the plugin installed or not - can you tell???

sh ./hplip-3.10.6-plugin.run
Verifying archive integrity... All good.
Uncompressing HPLIP 3.10.6 Plugin Self Extracting Archive.........................................

HP Linux Imaging and Printing System (ver. 3.10.6)
Plugin Installer ver. 3.0

Copyright (c) 2001-9 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.

Plug-in version: 3.10.6
Installed HPLIP version: 3.10.6
Number of files to install: 36

Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
(3584) KSharedDataCache::Private::mapSharedMemory: Opening cache "/var/tmp/kdecache-terry/icon-cache.kcache" page size is 4096
(3584) KSharedDataCache::Private::mapSharedMemory: Attached to cache, determining if it must be initialized
(3584) KSharedDataCache::Private::mapSharedMemory: Cache fully initialized -- attached to memory mapping
(3584) KSharedDataCache::Private::mapSharedMemory: 8749056 bytes available out of 10485760

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Hi David,

Sorry for inconvenience caused due to this!!!

i was busy on some other work.

i was able to reproduce this scenario.
Plugin installation needs to run as root.
please run "sudo sh hplip-3.10.6-plugin.run"

This will do the required plug-in installation.
Once this has executed please check the exit status of command with "echo $?"

Thanks, for your report.
We will prompt to user to run hp-plugin as root.

Thanks,
Naga Samrat Chowdary, Narla

[Naga Samrat Chowdary, Narla (samrat-hplip)]

After some more understanding. because of no root user available in Ubuntu, hp-plugin is not able to prompt to user about please run hp-plugin as root.

We can check weather plugin is installed or not by running hp-check -t and the observe the section
[plugin]
installed=1

Thanks,
Naga Samrat Chowdary, Narla

[David (fastsnip-bcard)]

ran using sudo command.

Checked exit status: 0 - so it worked.

Under (K)Ubuntu, if you need root privilege with the graphical interface, use

kdesu command

that brings up a dialog window asking for the needed password and executes the 'command'

[Till Kamppeter (till-kamppeter)]

Does running

hp-plugin-ubuntu

install the plugin for your? For this one running as root is not required.

[Naga Samrat Chowdary, Narla (samrat-hplip)]

Sorry for the comment #12.

If plug-in is not installed and running hp-setup:
hp-setup will launch hp-plugin to install plugin. and the invocation of hp-plugin by hp-setup is depends on weather policy-kit is enabled or disabled. if policy-kit is disabled then it will check for GUI tools in system to request to user to take username and password. if policy-kit is enabled then policy-kit should take care about it.
running hp-plugin as standalone will also work like the above.

This issue, Looks like there is an issue while invoking policy-kit from HPLIP, not from Ubuntu.

Thanks,
Naga Samrat Chowdary, Narla

[Launchpad Janitor (janitor)]

[Expired for hplip (Ubuntu) because there has been no activity for 60 days.]