Hi all,
I'm having troubles configuring the HP all in one printer and scanner because the HPLIP software (see <https://developers.hp.com/hp-linux-imaging-and-printing/>) is not recognizing KDE Neon as a supported distribution, while it is working for (K)Ubuntu. Anyone has a suggestion on how to cheat and make hplip software to run on KDE Neon?

Hi,

you can install HPLIP from the normal Repo. This should work. It does here.

If you're talking about the "plugin" does not install, there is an easy way to "cheat".

You need to edit /usr/share/hplip/base/password.py

in

Code: Select all

AUTH_TYPES

you need to add the line

Code: Select all

'neon': 'sudo'

or just change the 'ubuntu' to 'neon'

after this the plugin installs as it shuold.

will;

Sorry for late replying, but I'm still unable to make it work.
With the official package or the downloaded one, even with the `neon` addition, the application fails to download all dependencies.
If I run the hp utility to configure my printer, attached via USB, it is not found. And I've configured it via cups and it prints!
What I would like to do is to use the scanner too, so any advice is appreciated.

To be more accurate:

Code: Select all

% hp-doctor
...

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

 
HP_ENVY_Pro_6400_series
-----------------------
Type: Unknown
Device URI: usb://HP/ENVY%20Pro%206400%20series?serial=TH0BA3902R&interface=1
PPD: /etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd
warning: Failed to read /etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd ppd file
PPD Description:
Printer status: la stampante HP_ENVY_Pro_6400_series è inattiva.  è stata abilitata da Wed Apr 21 16:03:27 2021
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend for HP-Devices.


--------------
| PERMISSION |
--------------

 

Checking Permissions....


Checking for Configured Queues....
warning: Fail to read ppd=/etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd file
warning: Insufficient permission to access file /etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd
warning: Could not complete Queue(s) configuration check


Checking for HP Properitery Plugin's....
No plug-in printers are configured.
 
Diagnose completed...


and what puzzles me is that many dependencies are unmet, e.g., `dbus`and `cups` (which I suspect are there!), as well as the printer is shown as unsupported.

Code: Select all

% hp-check
Saving output in log file: /home/luca/hp-check.log

HP Linux Imaging and Printing System (ver. 3.20.3)
Dependency/Version Check Utility ver. 15.1

Copyright (c) 2001-18 HP 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).                                                                                                                                     

Check types:                                                                                                                                       
a. EXTERNALDEP - External Dependencies                                                                                                             
b. GENERALDEP - General Dependencies (required both at compile and run time)                                                                       
c. COMPILEDEP - Compile time Dependencies                                                                                                         
d. [All are run-time checks]                                                                                                                       
PYEXT SCANCONF QUEUES PERMISSION                                                                                                                   

Status Types:
    OK
    MISSING       - Missing Dependency or Permission or Plug-in
    INCOMPAT      - Incompatible dependency-version or Plugin-version

-
(process:9189): Gdk-WARNING **: 17:55:13.640: locale not supported by C library

(process:9189): Gtk-WARNING **: 17:55:13.641: Locale not supported by C library.
        Using the fallback 'C' locale.
warning: unknown-20.04 version is not supported. Using unknown-0 versions dependencies to verify and install...

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

 Kernel: 5.4.0-65-generic #73-Ubuntu SMP Mon Jan 18 17:25:17 UTC 2021 GNU/Linux
 Host: franzina
 Proc: 5.4.0-65-generic #73-Ubuntu SMP Mon Jan 18 17:25:17 UTC 2021 GNU/Linux
 Distribution: unknown 20.04
 Bitness: 64 bit


-----------------------
| HPLIP CONFIGURATION |
-----------------------

HPLIP-Version: HPLIP 3.20.3
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for unknown distro  20.04 version

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

[hplip]
version=3.20.3

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/hplip/HP
ppdbase=/usr/share/ppd/hplip
doc=/usr/share/doc/hplip
html=/usr/share/doc/hplip-doc
icon=no
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv
bin=/usr/bin
apparmor=/etc/apparmor.d
# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
pp-build=no
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=no
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.20.3
restricted-build=no
ui-toolkit=qt5
qt3=no
qt4=no
qt5=yes
policy-kit=yes
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=no
class-driver=no


Current contents of '/var/lib/hp/hplip.state' file:
Plugins are not installed. Could not access file: No such file or directory

Current contents of '~/.hplip/hplip.conf' file:
[commands]
scan = /usr/bin/xsane -V %SANE_URI%

[fax]
email_address =
voice_phone =

[installation]
date_time = 04/23/21 17:55:14
version = 3.20.3

[last_used]
device_uri =
printer_name =
working_dir = .

[polling]
device_list =
enable = false
interval = 5

[refresh]
enable = false
rate = 30
type = 1

[settings]
systray_messages = 0
systray_visible = 1

[upgrade]
last_upgraded_time = 1616769193
notify_upgrade = false
pending_upgrade_time = 0


 <Package-name>        <Package-Desc>      <Required/Optional> <Min-Version> <Installed-Version> <Status>   <Comment>

-------------------------
| External Dependencies |
-------------------------

 error: cups          CUPS - Common Unix Printing System                           REQUIRED        1.1             -               INCOMPAT   'CUPS may not be installed or not running'
 gs                   GhostScript - PostScript and PDF language interpreter and previewer REQUIRED        7.05            9.50            OK         -

(process:9285): Gdk-WARNING **: 17:55:15.101: locale not supported by C library

(process:9285): Gtk-WARNING **: 17:55:15.102: Locale not supported by C library.
        Using the fallback 'C' locale.

(process:9286): Gdk-WARNING **: 17:55:15.120: locale not supported by C library

(process:9286): Gtk-WARNING **: 17:55:15.121: Locale not supported by C library.
        Using the fallback 'C' locale.
 xsane                xsane - Graphical scanner frontend for SANE                  OPTIONAL        0.9             0.999           OK         -
 scanimage            scanimage - Shell scanning program                           OPTIONAL        1.0             1.0.29          OK         -
 error: dbus          DBus - Message bus system                                    REQUIRED        -               1.12.16         MISSING    'DBUS may not be installed or not running'
 policykit            PolicyKit - Administrative policy framework                  OPTIONAL        -               0.105           OK         -
 network              network -wget                                                OPTIONAL        -               1.20.3          OK         -
 error: avahi-utils   avahi-utils                                                  OPTIONAL        -               -               MISSING    'avahi-utils needs to be installed'

------------------------
| General Dependencies |
------------------------

 libjpeg              libjpeg - JPEG library                                       REQUIRED        -               -               OK         -
 error: cups-devel    CUPS devel- Common Unix Printing System development files    REQUIRED        -               -               MISSING    'cups-devel needs to be installed'
 error: cups-image    CUPS image - CUPS image development files                    REQUIRED        -               -               MISSING    'cups-image needs to be installed'
 libpthread           libpthread - POSIX threads library                           REQUIRED        -               b'2.31'         OK         -
 error: libusb        libusb - USB library                                         REQUIRED        -               1.0             MISSING    'libusb needs to be installed'
 sane                 SANE - Scanning library                                      REQUIRED        -               -               OK         -
 error: sane-devel    SANE - Scanning library development files                    REQUIRED        -               -               MISSING    'sane-devel needs to be installed'
 error: libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED        5.0.9           -               MISSING    'libnetsnmp-devel needs to be installed'
 libcrypto            libcrypto - OpenSSL cryptographic library                    REQUIRED        -               1.1.1           OK         -
 python3X             Python 2.2 or greater - Python programming language          REQUIRED        2.2             3.8.5           OK         -
 python3-notify2      Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL        -               -               OK         -
 error: python3-pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4                         OPTIONAL        4.0             -               MISSING    'python3-pyqt4-dbus needs to be installed'
 error: python3-pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x)         REQUIRED        4.0             -               MISSING    'python3-pyqt4 needs to be installed'
 python3-dbus         Python DBus - Python bindings for DBus                       REQUIRED        0.80.0          1.2.16          OK         -
 python3-xml          Python XML libraries                                         REQUIRED        -               2.2.9           OK         -
 error: python3-devel Python devel - Python development files                      REQUIRED        2.2             3.8.5           MISSING    'python3-devel needs to be installed'
 python3-pil          PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL        -               7.0.0           OK         -
 python3-reportlab    Reportlab - PDF library for Python                           OPTIONAL        2.0             3.5.34          OK         -

--------------
| COMPILEDEP |
--------------

 error: libtool       libtool - Library building support services                  REQUIRED        -               -               MISSING    'libtool needs to be installed'
 gcc                  gcc - GNU Project C and C++ Compiler                         REQUIRED        -               9.3.0           OK         -
 make                 make - GNU make utility to maintain groups of programs       REQUIRED        3.0             4.2.1           OK         -

---------------------
| Python Extentions |
---------------------

 cupsext              CUPS-Extension                                               REQUIRED        -               3.20.3          OK         -
 hpmudext             IO-Extension                                                 REQUIRED        -               3.20.3          OK         -

----------------------
| Scan Configuration |
----------------------

'/etc/sane.d/dll.d/hpaio' not found.
 hpaio                HPLIP-SANE-Backend                                           REQUIRED        -               3.20.3          OK         'hpaio found in /etc/sane.d/dll.conf'
 scanext              Scan-SANE-Extension                                          REQUIRED        -               3.20.3          OK         -

------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------

device `escl:http://127.0.0.1:60000' is a ESCL ENVY Pro 6400 series [TH0BA3902R] flatbed scanner


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

No devices found.

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

 
HP_ENVY_Pro_6400_series
-----------------------
Type: Unknown
Device URI: usb://HP/ENVY%20Pro%206400%20series?serial=TH0BA3902R&interface=1
PPD: /etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd
warning: Failed to read /etc/cups/ppd/HP_ENVY_Pro_6400_series.ppd ppd file
PPD Description:
Printer status: la stampante HP_ENVY_Pro_6400_series è inattiva.  è stata abilitata da Wed Apr 21 16:03:27 2021
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend for HP-Devices.


--------------
| PERMISSION |
--------------

error: Unsupported model: ENVY_Pro_6400_series
 
-----------
| SUMMARY |
-----------

Missing Required Dependencies
-----------------------------
None

Missing Optional Dependencies
-----------------------------
None


Total Errors: 12
Total Warnings: 1


Done.


Any suggestion?

I too would like to see a solution to this. I have an HP Envy 4524 which I only use for scanning. Simple Scan sees it but it doesn't work.