j'ai essayé de faire sudo systemctl status cups. j'obtiens cela
michel@michel-System-Product-Name:~$ sudo systemctl status cups
[sudo] Mot de passe de michel :
● cups.service - CUPS Scheduler
Loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: >
Active: active (running) since Sun 2020-05-03 18:52:53 CEST; 49s ago
TriggeredBy: ● cups.socket
● cups.path
Docs: man:cupsd(8)
Main PID: 6576 (cupsd)
Tasks: 18 (limit: 9381)
Memory: 103.8M
CGroup: /system.slice/cups.service
├─6576 /usr/sbin/cupsd -l
├─6599 /usr/lib/cups/notifier/dbus dbus://
├─6600 /usr/lib/cups/notifier/dbus dbus://
├─6601 /usr/lib/cups/notifier/dbus dbus://
├─6602 /usr/lib/cups/notifier/dbus dbus://
├─6603 /usr/lib/cups/notifier/dbus dbus://
├─6604 /usr/lib/cups/notifier/dbus dbus://
├─6605 /usr/lib/cups/notifier/dbus dbus://
├─6607 /usr/lib/cups/notifier/dbus dbus://
├─6609 /usr/lib/cups/notifier/dbus dbus://
├─6610 /usr/lib/cups/notifier/dbus dbus://
├─6613 ENVY-5530 43 michel Test Page 1 job-uuid=urn:uuid:b80c376a->
├─6614 ENVY-5530 43 michel Test Page 1 job-uuid=urn:uuid:b80c376a->
lines 1-23...skipping...
● cups.service - CUPS Scheduler
Loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2020-05-03 18:52:53 CEST; 49s ago
TriggeredBy: ● cups.socket
● cups.path
Docs: man:cupsd(8)
Main PID: 6576 (cupsd)
Tasks: 18 (limit: 9381)
Memory: 103.8M
CGroup: /system.slice/cups.service
├─6576 /usr/sbin/cupsd -l
├─6599 /usr/lib/cups/notifier/dbus dbus://
├─6600 /usr/lib/cups/notifier/dbus dbus://
├─6601 /usr/lib/cups/notifier/dbus dbus://
├─6602 /usr/lib/cups/notifier/dbus dbus://
├─6603 /usr/lib/cups/notifier/dbus dbus://
├─6604 /usr/lib/cups/notifier/dbus dbus://
├─6605 /usr/lib/cups/notifier/dbus dbus://
├─6607 /usr/lib/cups/notifier/dbus dbus://
├─6609 /usr/lib/cups/notifier/dbus dbus://
├─6610 /usr/lib/cups/notifier/dbus dbus://
├─6613 ENVY-5530 43 michel Test Page 1 job-uuid=urn:uuid:b80c376a-36f9-3ca4-643b-4238a0930900 job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=15885239>
├─6614 ENVY-5530 43 michel Test Page 1 job-uuid=urn:uuid:b80c376a-36f9-3ca4-643b-4238a0930900 job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=15885239>
├─6615 hp:/usb/ENVY_5530_series?serial=CN4BF4667S067B 43 michel Test Page 1 job-uuid=urn:uuid:b80c376a-36f9-3ca4-643b-4238a0930900 job-originating-host-name=localhost date-time-at-creation= date-time-at->
├─6616 gs -dQUIET -dSAFER -dNOPAUSE -dBATCH -dNOINTERPOLATE -dNOMEDIAATTRS -dShowAcroForm -sstdout=%stderr -sOutputFile=%stdout -sDEVICE=cups -sMediaType=Plain -sOutputType=0 -r600x300 -dMediaPosition=7 >
└─6635 /usr/lib/cups/notifier/dbus dbus://
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 389: Active kernel driver on interface=1 ret=0
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 535: claimed 7/1/2 interface
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 781: read actual device_id successfully fd=1 len=438
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 561: released 7/1/2 interface
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 961: new PRINT channel=2 clientCnt=1 channelCnt=1
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 427: Found interface conf=0, iface=1, altset=0, index=1
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 389: Active kernel driver on interface=1 ret=0
mai 03 18:52:54 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 535: claimed 7/1/2 interface
mai 03 18:53:39 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 1455: unable to write data hp:/usb/ENVY_5530_series?serial=CN4BF4667S067B: 45 second io timeout
mai 03 18:53:39 michel-System-Product-Name hp[6615]: io/hpmud/musb.c 781: read actual device_id successfully fd=1 len=438
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
lines 1-37/37 (END)
avec ls usb j'obtiens cela:
michel@michel-System-Product-Name:~$ lsusb
Bus 002 Device 005: ID 067b:2506 Prolific Technology, Inc. Kaser 8gB micro hard drive
Bus 002 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 003: ID 046d:09c1 Logitech, Inc. QuickCam Deluxe for Notebooks
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 004: ID 1058:0820 Western Digital Technologies, Inc. My Passport Ultra (WDBMWV, WDBZFP)
Bus 006 Device 003: ID 1058:0740 Western Digital Technologies, Inc. My Passport Essential (WDBACY)
Bus 006 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. 4-Port USB 3.0 Hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 003: ID 03f0:c311 HP, Inc
Bus 005 Device 002: ID 0bda:5411 Realtek Semiconductor Corp. 4-Port USB 2.0 Hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
michel@michel-System-Product-Name:~$