[SOLVED] Cups problem Canon Pixma MG3255

hazel · 11-07-2018, 03:17 PM

Excellent! Cups failed (we already knew it would), but sudo succeeded. Cups was launched correctly. So you now know that you have sudo access when you need it. We still need to find out why it doesn't work in a graphical terminal, but at least you can do it in a virtual console.

Now try launching cups by hand rather than letting systemd do it. You might have better luck. Systemd can be a pig sometimes.

The usual command is sudo /usr/sbin/cupsd. A few distros call it cups rather than cupsd, but I think cupsd is the norm in the Debian family to which the *buntus belong.

I shall be shutting down now. We can continue tomorrow. If you can launch cups by hand and it doesn't crash, then you can configure your printer.

Harry07 · 11-07-2018, 03:23 PM

LOL, you say excellent but I don't know what I'm doing (just following orders

harry@harry-desktop:~$ sudo /usr/sbin/cupsd
[sudo] wachtwoord voor harry:
harry@harry-desktop:~$

Cannot print or connect with cups-server.
Reboot first??

I stop now. Hope to go on tomorrow. Good night Hazel.

hazel · 11-08-2018, 06:31 AM

Quote:

Originally Posted by Harry07

LOL, you say excellent but I don't know what I'm doing (just following orders

That's not a good idea. The whole point of Linux is that you learn by putting things right. What you have been doing so far is getting root/sudo access to your system so that you can relaunch cups. You tell us you can't do that in a graphical terminal (that's a separate problem), which is why you are now using a virtual console.

Quote:

harry@harry-desktop:~$ sudo /usr/sbin/cupsd
[sudo] wachtwoord voor harry:
harry@harry-desktop:~$

This looks good to me. You need to know that terminal output follows the "Napoleon principle". Napoleon used to say, "Only wake me if it's bad news". So when you run a command from the terminal, and you get no error messages, that means your command worked.

Did you check the log files to see if cups crashed subsequently? If it did not, then you have a way of launching cups safely so that you can configure your printer. You do it using the cups browser interface that I told you about. With any luck, cups will just find your printer. If that doesn't work, you may need to enter the details by hand. But in any case, it only has to be done once and after that, you can print.

Then we need to find out why you can't use sudo from a graphical terminal. It may be a security feature of your desktop. In which case, you may need to use gksu instead. Or pkexec (which is what synaptic uses). You can safely experiment until you find a command that works.

Finally you will need to find out why systemd has this problem with running cups. I can't help you there but someone else surely can. I warn you though, there are a lot of people around here who absolutely hate systemd and everything to do with it.

Harry07 · 11-08-2018, 07:06 AM

Good afternoon and thank you Hazel, you are so nice to me

Of course I always learn from doing and with the help of the Ubuntu NL Forum and now this Forum.
New Grub is no Problem anymore and this all by doing and experimenting and not being afraid to make a mistake or ask questions etc.

I stumbled on this, have you seen it to? https://itsfoss.com/gksu-replacement-ubuntu/

I'm offline again for about 2 hours (doctor).

hazel · 11-08-2018, 07:32 AM

Now that is new to me. It may be just a *buntu thing. I have Debian Stretch and that still has gksu/gksudo. If it goes, then pkexec is the obvious replacement.

Harry07 · 11-08-2018, 09:08 AM

Hazel, using the search method on my Dutch Ubuntu forum I found (translated)
Tip: gksu / gksudo is gone in 18.04, so use an alternative

Does this mean my problem has to do with that? And I better install and use this alternative pkexec?
If yes, I found an Tutorial about it (in Dutch).

Perhaps important (translated):
Therefore, never use sudo for graphical applications, since those applications then use the environment variables in your own $ HOME.

Or did I take the 'wrong turn´ now?

hazel · 11-08-2018, 09:25 AM

You don't need to install pkexec. You already have it; it's part of polkit. You use it every time you use synaptic (and doubtless other programs too).

It is quite possible that xfce and similar desktops now refuse to work with sudo, since it was always considered bad practice to use it in that kind of context. I couldn't tell you that because I don't use such desktops. I only use simple window managers. Just out of interest, what message did you get when you tried? You only said it didn't work.

Note for the future: When asking questions, you always need to provide literal error messages; don't just say "it didn't work" or "my password wasn't accepted". That doesn't allow anyone to find out what went wrong.

JeremyBoden · 11-08-2018, 09:27 AM

gksu is still provided in Debian Stretch (and LMDE Cinnamon)

Code:

gksu               2.0.2-9+b1              amd64        graphical front-end to su and sudo
libgksu2-0         2.0.13~pre1-9+b1        amd64        library providing su and sudo functionality
sudo               1.8.19p1-2.1            amd64        Provide limited super user privileges to specific users

Harry07 · 11-08-2018, 09:44 AM

Quote:

Just out of interest, what message did you get when you tried? You only said it didn't work.

To what Post are you referring? #15?

hazel · 11-08-2018, 09:53 AM

Quote:

Originally Posted by Harry07

To what Post are you referring? #15?

#1! And a few subsequent ones.

Harry07 · 11-08-2018, 10:37 AM

Hope I did better this time.

#1 Tried again "systemctl enable cups.service": harry@harry-desktop:~$ systemctl enable cups.service
Synchronizing state of cups.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable cups
Pop-up with "Authentication required" I give my password but it doesn't use/accept it and I get a blank line again (for a password).

#4 "sudo systemctl status cups":

Code:

● cups.service - CUPS Scheduler
   Loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: enabled)
   Active: failed (Result: start-limit-hit) since Thu 2018-11-08 15:37:57 CET; 1h 36min ago
     Docs: man:cupsd(8)
 Main PID: 764 (code=killed, signal=TERM)

nov 08 15:37:57 harry-desktop systemd[1]: cups.service: Service hold-off time over, scheduling restart.
nov 08 15:37:57 harry-desktop systemd[1]: cups.service: Scheduled restart job, restart counter is at 5.
nov 08 15:37:57 harry-desktop systemd[1]: Stopped CUPS Scheduler.
nov 08 15:37:57 harry-desktop systemd[1]: cups.service: Start request repeated too quickly.
nov 08 15:37:57 harry-desktop systemd[1]: cups.service: Failed with result 'start-limit-hit'.
nov 08 15:37:57 harry-desktop systemd[1]: Failed to start CUPS Scheduler.

#16 sudo /usr/sbin/cupsd and sudo /usr/sbin/cups both Napoleon

#18 Your question: Did you check the log files to see if cups crashed subsequently?
My question: where and how can I find them?

Harry07 · 11-08-2018, 10:39 AM

@JeremyBoden

Do I have to do something with it? Or is it just a notification?

Harry07 · 11-08-2018, 10:55 AM

I did some searching and found this: https://wiki.ubuntu.com/DebuggingPrintingProblems
I followed Printer Detection and did it in the Terminal. Hope its helpful. Outcome:

Code:

harry@harry-desktop:~$ lsmod | grep usb
usblp                  20480  0
usbhid                 49152  0
hid                   118784  2 usbhid,hid_generic

harry@harry-desktop:~$ tail -f /var/log/syslog
Nov  8 17:45:30 harry-desktop kernel: [ 7658.501945] usb 1-4: Product: MG3200 series
Nov  8 17:45:30 harry-desktop kernel: [ 7658.501948] usb 1-4: Manufacturer: Canon
Nov  8 17:45:30 harry-desktop kernel: [ 7658.501952] usb 1-4: SerialNumber: 837DD2
Nov  8 17:45:30 harry-desktop kernel: [ 7658.506758] usblp 1-4:1.1: usblp0: USB Bidirectional printer dev 9 if 1 alt 0 proto 2 vid 0x04A9 pid 0x1762
Nov  8 17:45:30 harry-desktop upowerd[980]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.1
Nov  8 17:45:30 harry-desktop upowerd[980]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4
Nov  8 17:47:08 harry-desktop kernel: [ 7756.475164] usb 1-4: USB disconnect, device number 9
Nov  8 17:47:08 harry-desktop kernel: [ 7756.475666] usblp0: removed
Nov  8 17:47:08 harry-desktop upowerd[980]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.1
Nov  8 17:47:08 harry-desktop upowerd[980]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4
Nov  8 17:48:40 harry-desktop kernel: [ 7848.526771] usb 1-4: new high-speed USB device number 10 using ehci-pci
Nov  8 17:48:40 harry-desktop kernel: [ 7848.684832] usb 1-4: New USB device found, idVendor=04a9, idProduct=1762
Nov  8 17:48:40 harry-desktop kernel: [ 7848.684839] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Nov  8 17:48:40 harry-desktop kernel: [ 7848.684843] usb 1-4: Product: MG3200 series
Nov  8 17:48:40 harry-desktop kernel: [ 7848.684846] usb 1-4: Manufacturer: Canon
Nov  8 17:48:40 harry-desktop kernel: [ 7848.684849] usb 1-4: SerialNumber: 837DD2
Nov  8 17:48:40 harry-desktop kernel: [ 7848.689545] usblp 1-4:1.1: usblp0: USB Bidirectional printer dev 10 if 1 alt 0 proto 2 vid 0x04A9 pid 0x1762
Nov  8 17:48:40 harry-desktop upowerd[980]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.1
Nov  8 17:48:40 harry-desktop upowerd[980]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:12.2/usb1/1-4
^C
harry@harry-desktop:~$ lsusb
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 010: ID 04a9:1762 Canon, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 007: ID 045e:00cb Microsoft Corp. Basic Optical Mouse v2.0
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
harry@harry-desktop:~$ ls -l /dev/usb/lp* /dev/bus/usb/*/*
crw-rw-r--  1 root root 189,    0 nov  8 15:37 /dev/bus/usb/001/001
crw-rw-r--+ 1 root lp   189,    9 nov  8 17:48 /dev/bus/usb/001/010
crw-rw-r--  1 root root 189,  128 nov  8 15:37 /dev/bus/usb/002/001
crw-rw-r--  1 root root 189,  256 nov  8 15:37 /dev/bus/usb/003/001
crw-rw-r--  1 root root 189,  384 nov  8 15:37 /dev/bus/usb/004/001
crw-rw-r--  1 root root 189,  390 nov  8 17:26 /dev/bus/usb/004/007
crw-rw-r--  1 root root 189,  512 nov  8 15:37 /dev/bus/usb/005/001
crw-rw-r--  1 root root 189,  640 nov  8 15:37 /dev/bus/usb/006/001
crw-rw-r--  1 root root 189,  768 nov  8 15:37 /dev/bus/usb/007/001
crw-rw-r--  1 root root 189,  896 nov  8 15:37 /dev/bus/usb/008/001
crw-rw-r--  1 root root 189, 1024 nov  8 15:37 /dev/bus/usb/009/001
crw-rw----  1 root lp   180,    0 nov  8 17:48 /dev/usb/lp0
harry@harry-desktop:~$ sudo usb_printerid /dev/usb/lp0
[sudo] wachtwoord voor harry: 
GET_DEVICE_ID string:
MFG:Canon;CMD:BJL,BJRaster3,BSCCe,NCCe,IVEC,IVECPLI;SOJ:BJNP2,BJNPe;MDL:MG3200 series;CLS:PRINTER;DES:Canon MG3200 series;VER:1.030;STA:10;FSI:00;HRI:D;MSI:AOFF,B060,DAT,E3,HFSF,JON,K21000700,LOFF;PDR:4;PSE:LRGA49514;CID:CA_IVEC1TYPE1_IJP;
harry@harry-desktop:~$ sudo usb_printerid /dev/usb/lp1
Error: No such file or directory: can't open '/dev/usb/lp1'
harry@harry-desktop:~$ lpinfo -v
lpinfo: Ongeldige bestandsdescriptor
harry@harry-desktop:~$

hazel · 11-08-2018, 11:01 AM

Look in /var/log. You'll find the systemd journal log there but there should also be the traditional log files like messages and syslog. I think most systemd distros still include these. They should always be your first port of call when anything goes wrong with a background daemon.

You can also check at any time if cups (or any other daemon) is running by using ps ax to list all running processes.

PS: I see you found syslog by yourself.

Harry07 · 11-08-2018, 12:02 PM

What I find weird is, in the log (#28) my printer is listed but doesn't print (yet).

Quote:

You can also check at any time if cups (or any other daemon) is running by using ps ax to list all running processes.

No printer listed below.

Code:

harry@harry-desktop:~$ ps ax
  PID TTY      STAT   TIME COMMAND
    1 ?        Ss     0:01 /sbin/init splash
    2 ?        S      0:00 [kthreadd]
    4 ?        I<     0:00 [kworker/0:0H]
    6 ?        I<     0:00 [mm_percpu_wq]
    7 ?        S      0:00 [ksoftirqd/0]
    8 ?        I      0:07 [rcu_sched]
    9 ?        I      0:00 [rcu_bh]
   10 ?        S      0:00 [migration/0]
   11 ?        S      0:00 [watchdog/0]
   12 ?        S      0:00 [cpuhp/0]
   13 ?        S      0:00 [cpuhp/1]
   14 ?        S      0:00 [watchdog/1]
   15 ?        S      0:00 [migration/1]
   16 ?        S      0:00 [ksoftirqd/1]
   18 ?        I<     0:00 [kworker/1:0H]
   19 ?        S      0:00 [cpuhp/2]
   20 ?        S      0:00 [watchdog/2]
   21 ?        S      0:00 [migration/2]
   22 ?        S      0:00 [ksoftirqd/2]
   24 ?        I<     0:00 [kworker/2:0H]
   25 ?        S      0:00 [cpuhp/3]
   26 ?        S      0:00 [watchdog/3]
   27 ?        S      0:00 [migration/3]
   28 ?        S      0:00 [ksoftirqd/3]
   30 ?        I<     0:00 [kworker/3:0H]
   31 ?        S      0:00 [kdevtmpfs]
   32 ?        I<     0:00 [netns]
   33 ?        S      0:00 [rcu_tasks_kthre]
   34 ?        S      0:00 [kauditd]
   38 ?        S      0:00 [khungtaskd]
   39 ?        S      0:00 [oom_reaper]
   40 ?        I<     0:00 [writeback]
   41 ?        S      0:00 [kcompactd0]
   42 ?        SN     0:00 [ksmd]
   43 ?        SN     0:00 [khugepaged]
   44 ?        I<     0:00 [crypto]
   45 ?        I<     0:00 [kintegrityd]
   46 ?        I<     0:00 [kblockd]
   48 ?        I<     0:00 [ata_sff]
   49 ?        I<     0:00 [md]
   50 ?        I<     0:00 [edac-poller]
   51 ?        I<     0:00 [devfreq_wq]
   52 ?        I<     0:00 [watchdogd]
   54 ?        S      0:00 [kswapd0]
   55 ?        S      0:00 [ecryptfs-kthrea]
   97 ?        I<     0:00 [kthrotld]
   98 ?        I<     0:00 [acpi_thermal_pm]
  105 ?        I<     0:00 [ipv6_addrconf]
  114 ?        I<     0:00 [kstrp]
  132 ?        I<     0:00 [charger_manager]
  180 ?        I<     0:00 [firewire]
  181 ?        S      0:00 [scsi_eh_0]
  182 ?        I<     0:00 [scsi_tmf_0]
  183 ?        S      0:00 [scsi_eh_1]
  184 ?        I<     0:00 [scsi_tmf_1]
  185 ?        S      0:00 [scsi_eh_2]
  186 ?        I<     0:00 [scsi_tmf_2]
  187 ?        S      0:00 [scsi_eh_3]
  188 ?        I<     0:00 [scsi_tmf_3]
  191 ?        I<     0:00 [firewire_ohci]
  192 ?        S      0:00 [scsi_eh_4]
  193 ?        I<     0:00 [scsi_tmf_4]
  194 ?        S      0:00 [scsi_eh_5]
  195 ?        I<     0:00 [scsi_tmf_5]
  199 ?        I<     0:00 [nvkm-disp]
  200 ?        I<     0:00 [ttm_swap]
  202 ?        I<     0:00 [kworker/3:1H]
  224 ?        S      0:00 [jbd2/sda1-8]
  225 ?        I<     0:00 [ext4-rsv-conver]
  276 ?        S<s    0:00 /lib/systemd/systemd-journald
  289 ?        Ss     0:00 /lib/systemd/systemd-udevd
  318 ?        I<     0:00 [kworker/1:1H]
  352 ?        I<     0:00 [kworker/2:1H]
  379 ?        I<     0:00 [kworker/0:1H]
  494 ?        Ss     0:00 /lib/systemd/systemd-resolved
  496 ?        Ssl    0:00 /lib/systemd/systemd-timesyncd
  593 ?        Ss     0:00 /usr/sbin/acpid
  597 ?        Ssl    0:00 /usr/sbin/rsyslogd -n
  598 ?        Ssl    0:00 /usr/sbin/ModemManager
  600 ?        Ssl    0:00 /usr/lib/udisks2/udisksd
  603 ?        Ss     0:00 /usr/sbin/cron -f
  604 ?        Ssl    0:00 /usr/sbin/irqbalance --foreground
  618 ?        Ssl    0:00 /usr/lib/accountsservice/accounts-daemon
  626 ?        Ssl    0:00 /usr/lib/snapd/snapd
  630 ?        Ssl    0:00 /usr/bin/python3 /usr/bin/networkd-dispatcher --run-s
  632 ?        Ss     0:00 avahi-daemon: running [harry-desktop.local]
  634 ?        Ss     0:01 /usr/bin/dbus-daemon --system --address=systemd: --no
  636 ?        Ssl    0:01 /usr/sbin/NetworkManager --no-daemon
  637 ?        Ss     0:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
  638 ?        Ss     0:00 /lib/systemd/systemd-logind
  658 ?        S      0:00 avahi-daemon: chroot helper
  669 ?        Ssl    0:00 /usr/lib/policykit-1/polkitd --no-debug
  728 ?        Ssl    0:00 /usr/sbin/lightdm
  742 tty7     Ssl+   8:47 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/ru
  760 ?        Sl     0:00 lightdm --session-child 12 15
  766 ?        Ss     0:00 /lib/systemd/systemd --user
  767 ?        S      0:00 (sd-pam)
  778 ?        Ss     0:00 /bin/sh /etc/xdg/xfce4/xinitrc -- /etc/X11/xinit/xser
  793 ?        Ss     0:05 /usr/bin/dbus-daemon --session --address=systemd: --n
  861 ?        Ss     0:00 /usr/bin/ssh-agent /usr/bin/im-launch startxfce4
  879 ?        Sl     0:00 xfce4-session
  883 ?        S      0:00 /usr/lib/x86_64-linux-gnu/xfce4/xfconf/xfconfd
  887 ?        SLl    0:00 gnome-keyring-daemon --start
  892 ?        S      0:27 xfwm4 --replace
  896 ?        Sl     0:06 xfce4-panel
  898 ?        Sl     0:12 Thunar --daemon
  900 ?        Sl     0:09 xfdesktop
  901 ?        S      0:00 /bin/sh /opt/pia/ruby/ruby.sh /opt/pia/pia_manager/ru
  903 ?        Ssl    0:01 xfsettingsd
  909 ?        Sl     0:00 /usr/bin/python3 /usr/share/system-config-printer/app
  912 ?        Sl     0:00 update-notifier
  915 ?        Sl     0:00 light-locker
  916 ?        Sl     0:00 /opt/pia/ruby/64/ruby -I /opt/pia/ruby/64 /opt/pia/pi
  919 ?        Sl     0:02 /usr/lib/policykit-1-gnome/polkit-gnome-authenticatio
  921 ?        Ssl    0:00 xfce4-power-manager
  923 ?        Sl     0:00 /usr/bin/python3 /usr/bin/blueman-applet
  927 ?        Sl     0:00 /usr/lib/dconf/dconf-service
  933 ?        Sl     0:00 nm-applet
  935 ?        Ssl    0:00 /usr/lib/at-spi2-core/at-spi-bus-launcher
  946 ?        S      0:00 /usr/bin/dbus-daemon --config-file=/usr/share/default
  951 ?        Sl     0:02 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-s
  953 ?        S      0:00 /bin/sh /opt/pia/ruby/ruby.sh /opt/pia/pia_manager/ru
  966 ?        Sl     1:13 /opt/pia/ruby/64/ruby -I /opt/pia/ruby/64 /opt/pia/pi
  971 ?        S<l    0:07 /usr/bin/pulseaudio --start --log-target=syslog
  972 ?        SNsl   0:00 /usr/lib/rtkit/rtkit-daemon
  977 ?        Ssl    0:00 /usr/lib/x86_64-linux-gnu/xfce4/notifyd/xfce4-notifyd
  980 ?        Ssl    0:00 /usr/lib/upower/upowerd
  983 ?        Ssl    0:00 /usr/lib/gvfs/gvfsd
  992 ?        Sl     0:00 /usr/lib/gvfs/gvfsd-fuse /run/user/1000/gvfs -f -o bi
 1022 ?        Sl     0:03 /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /us
 1030 ?        S      0:00 /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-1.0 /us
 1036 ?        Sl     0:00 /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /us
 1038 ?        Sl     0:00 /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /us
 1041 ?        Sl     0:14 /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /us
 1064 ?        Ssl    0:00 /usr/lib/x86_64-linux-gnu/indicator-messages/indicato
 1072 ?        Ssl    0:00 /usr/lib/gvfs/gvfs-udisks2-volume-monitor
 1076 ?        Ssl    0:00 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
 1080 ?        Ssl    0:00 /usr/lib/gvfs/gvfs-goa-volume-monitor
 1084 ?        Ssl    0:00 /usr/lib/gvfs/gvfs-afc-volume-monitor
 1089 ?        Ssl    0:00 /usr/lib/gvfs/gvfs-mtp-volume-monitor
 1096 ?        Sl     0:00 /usr/lib/gvfs/gvfsd-trash --spawner :1.22 /org/gtk/gv
 1111 ?        S      0:00 /sbin/dhclient -d -q -sf /usr/lib/NetworkManager/nm-d
 1130 ?        Ssl    0:00 /usr/bin/whoopsie -f
 1136 ?        Ss     0:00 /usr/sbin/kerneloops --test
 1140 ?        Ss     0:00 /usr/sbin/kerneloops
 1222 ?        S      0:00 sh -c "/opt/pia/nwjs/64/pia_nw" "/opt/pia/frontend" 
 1226 ?        SLl    0:05 /opt/pia/nwjs/64/pia_nw /opt/pia/frontend
 1279 ?        I      0:00 [kworker/u12:2]
 1332 ?        S      0:00 /opt/pia/nwjs/64/pia_nw --type=zygote --no-sandbox --
 1367 ?        Sl     0:00 /proc/self/exe --type=gpu-process --field-trial-handl
 1370 ?        Sl     0:02 /proc/self/exe --type=renderer --no-sandbox --no-zygo
 1435 ?        S      0:05 openvpn --client --persist-key --persist-tun --comp-l
 1453 ?        Ssl    0:00 /usr/lib/gvfs/gvfsd-metadata
 1572 ?        I      0:00 [kworker/u12:3]
 1582 ?        Ss     0:00 /usr/lib/bluetooth/obexd
 3969 ?        I      0:00 [kworker/0:1]
 5202 ?        I      0:00 [kworker/u12:0]
 5251 ?        I      0:00 [kworker/0:0]
 5347 ?        S      0:00 /usr/lib/x86_64-linux-gnu/xfce4/exo-1/exo-helper-1 --
 5348 ?        Rl     0:00 /usr/bin/xfce4-terminal
 5352 pts/0    Ss     0:00 bash
 5369 pts/0    R+     0:00 ps ax
 8158 ?        Sl    17:17 /usr/lib/firefox/firefox
 8236 ?        Sl     8:21 /usr/lib/firefox/firefox -contentproc -childID 1 -isF
 8295 ?        Sl     3:48 /usr/lib/firefox/firefox -contentproc -childID 2 -isF
 9105 ?        Sl     1:29 /usr/lib/firefox/firefox -contentproc -childID 4 -isF
17327 ?        Ssl    0:00 /usr/lib/packagekit/packagekitd
18422 ?        Sl     0:00 /usr/lib/gvfs/gvfsd-network --spawner :1.22 /org/gtk/
18456 ?        Sl     0:00 /usr/lib/gvfs/gvfsd-dnssd --spawner :1.22 /org/gtk/gv
19807 tty1     Ss     0:00 /bin/login -p --
21035 ?        I      0:04 [kworker/0:4]
23513 tty1     S+     0:00 -bash
26550 ?        I      0:00 [kworker/1:1]
26560 ?        I      0:01 [kworker/2:2]
29306 ?        Sl     0:00 /usr/lib/firefox/firefox -contentproc -childID 8 -isF
29949 ?        I      0:00 [kworker/3:1]
29950 ?        I      0:01 [kworker/2:0]
30966 ?        Sl     0:03 leafpad
31227 ?        I      0:01 [kworker/1:2]
31332 ?        I      0:01 [kworker/3:2]
harry@harry-desktop:~$