[Desktop-packages] [Bug 1733322] Re: Unable to enable file or screen sharing with unmanaged network connection

[Ricardo Biloti]

I have been experiencing the same. Is there any workaround meanwhile?

Just to mention, I am using Debian 10.

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https://bugs.launchpad.net/bugs/1733322

Title:
  Unable to enable file or screen sharing with unmanaged network
  connection

Status in gnome-control-center:
  Confirmed
Status in gnome-control-center package in Ubuntu:
  Triaged

Bug description:
  I have installed Ubuntu Server 17.10.  At request from a colleague I
  then tried to install ubuntu-desktop and enable screen sharing.
  However, this did not work as expected.  When trying to enable screen
  sharing (same goes for file sharing), the enable button just jumps
  straight back to disabled when toggling it.  I assumed this had
  something to do with the fact that the "networks" list at the bottom
  of the sharing dialog was empty. This appears in the syslog when
  trying to toggle:

  Nov 20 11:31:06 bcubuntu3 gnome-control-c[1054]: Failed to enable
  service vino-server:
  GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Sharing cannot be
  enabled on this network, status is '0'

  This computer has only a single wired network connection (no wifi).
  This connection shows in the system menu as "Wired unmanaged" which
  seems to be the reason that it doesn't show up in the sharing dialogs.

  As a workaround, I tried the following things:

  1. Change "managed=false" to "managed=true" in 
/etc/NetworkManager/NetworkManager.conf as suggested in 
https://askubuntu.com/a/2905
  2. Touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf as 
suggested in 
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1676547
  3. Change renderer to NetworkManager in /etc/netplan/01-netcfg.yaml

  1 and 2 was not enough to get NetworkManager to manage the wired
  interface, but 3, possibly together with one or both of the previous
  steps did the trick.

  When I finally got NetworkManager to manage the wired connection, it
  did show up in the sharing dialogs, and I was able to enable screen
  sharing. However, it would seem reasonable to be able to enable
  sharing even on unmanaged interfaces by some mechanism, especially
  since unmanaged interfaces seem to be the norm these days.

  ~$ lsb_release -rd
  Description:Ubuntu 17.10
  Release:17.10

  gnome-control-center:
Installed: 1:3.26.1-0ubuntu5
Candidate: 1:3.26.1-0ubuntu5
Version table:
   *** 1:3.26.1-0ubuntu5 500
  500 http://se.archive.ubuntu.com/ubuntu artful-updates/main amd64 
Packages
  100 /var/lib/dpkg/status
   1:3.26.1-0ubuntu4 500
  500 http://se.archive.ubuntu.com/ubuntu artful/main amd64 Packages

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[Desktop-packages] [Bug 1495971] Re: Samsung ML-1250 prints only first job and then disconnects

[Ricardo Biloti]

I read this full issue report and replies and it seems I am experienced
an analogous problem. Should I report the details of my case here or
open a new issue?

Here are few initial information:

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 16.04.1 LTS
Release:16.04
Codename:   xenial

uname -a:
Linux mangue 4.4.0-42-generic #62-Ubuntu SMP Fri Oct 7 23:11:45 UTC 2016 x86_64 
x86_64 x86_64 GNU/Linux

lsusb:
Bus 005 Device 025: ID 04e8:3301 Samsung Electronics Co., Ltd ML-1660 Series

/var/log/syslog: (the block below keeps popping out continuously)

Oct 10 20:11:27 mangue kernel: [ 1594.728192] usb 5-2: reset full-speed USB 
device number 40 using uhci_hcd
Oct 10 20:11:27 mangue kernel: [ 1594.885385] usb 5-2: USB disconnect, device 
number 40
Oct 10 20:11:27 mangue kernel: [ 1594.885804] usblp1: removed
Oct 10 20:11:27 mangue udev-configure-printer[6009]: remove 
/devices/pci:00/:00:1d.0/usb5/5-2
Oct 10 20:11:27 mangue kernel: [ 1595.98] usb 5-2: new full-speed USB 
device number 41 using uhci_hcd
Oct 10 20:11:28 mangue kernel: [ 1595.169199] usb 5-2: New USB device found, 
idVendor=04e8, idProduct=3301
Oct 10 20:11:28 mangue kernel: [ 1595.169209] usb 5-2: New USB device strings: 
Mfr=1, Product=2, SerialNumber=3
Oct 10 20:11:28 mangue kernel: [ 1595.169216] usb 5-2: Product: ML-1660 Series
Oct 10 20:11:28 mangue kernel: [ 1595.169222] usb 5-2: Manufacturer: Samsung 
Electronics Co., Ltd.
Oct 10 20:11:28 mangue kernel: [ 1595.169227] usb 5-2: SerialNumber: 
Z5ASBDAZ809914N.
Oct 10 20:11:28 mangue kernel: [ 1595.176325] usblp 5-2:1.0: usblp1: USB 
Bidirectional printer dev 41 if 0 alt 0 proto 2 vid 0x04E8 pid 0x3301
Oct 10 20:11:28 mangue mtp-probe: checking bus 5, device 41: 
"/sys/devices/pci:00/:00:1d.0/usb5/5-2"
Oct 10 20:11:28 mangue mtp-probe: bus: 5, device: 41 was not an MTP device
Oct 10 20:11:28 mangue udev-configure-printer[5977]: no corresponding CUPS 
device found
Oct 10 20:11:28 mangue systemd[1]: Started Automatic USB/Bluetooth printer 
setup (-devices-pci:00-:00:1d.0-usb5-5\x2d2).
Oct 10 20:11:28 mangue systemd[1]: printer.target: Unit not needed anymore. 
Stopping.
Oct 10 20:11:28 mangue systemd[1]: Stopped target Printer.
Oct 10 20:11:28 mangue systemd[1]: Starting Automatic USB/Bluetooth printer 
setup (-devices-pci:00-:00:1d.0-usb5-5\x2d2)...
Oct 10 20:11:28 mangue systemd[1]: Reached target Printer.
Oct 10 20:11:28 mangue udev-configure-printer[6029]: add 
/devices/pci:00/:00:1d.0/usb5/5-2
Oct 10 20:11:28 mangue udev-configure-printer[6029]: device devpath is 
/devices/pci:00/:00:1d.0/usb5/5-2
Oct 10 20:11:28 mangue udev-configure-printer[6029]: MFG:Samsung MDL:ML-1660 
Series SERN:- serial:Z5ASBDAZ809914N.

I am using Unified Linux Driver, from Samsung's HP, since the printer
was not able to print without it. After installing it, the printer was
automatically discovered and I could print one page. After that, the
printer goes automatically to disabled state. Re-enabling it does not
work, since it is disable few seconds later.

The printer used to work normally up to last week, when my computer was
still running Ubuntu 14.04 (and Samsung Linux Driver).

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https://bugs.launchpad.net/bugs/1495971

Title:
  Samsung ML-1250 prints only first job and then disconnects

Status in cups package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  We have:

  lsusb
  Bus 004 Device 009: ID 04e8:300e Samsung Electronics Co., Ltd Laser Printer

  Just connected printer and started to print first job:

  tail -f /var/log/syslog
  Sep 15 14:50:18 desktop udev-configure-printer: URI matches without serial 
number: usb://Samsung/ML-1250
  Sep 15 14:50:18 desktop udev-configure-printer: No serial number URI matches 
so using those without
  Sep 15 14:50:18 desktop udev-configure-printer: URI of detected printer: 
usb://Samsung/ML-1250, normalized: samsung ml 1250
  Sep 15 14:50:18 desktop udev-configure-printer: URI of print queue: 
usb://HP/LaserJet%201200?serial=00CNCF203187, normalized: laserjet 1200 serial 
00cncf203187
  Sep 15 14:50:18 desktop udev-configure-printer: About to add queue for 
usb://Samsung/ML-1250
  Sep 15 14:50:20 desktop udev-add-printer: add_queue: 
URIs=['usb://Samsung/ML-1250']
  Sep 15 14:50:20 desktop udev-add-printer: D-Bus method call failed: 
org.freedesktop.DBus.Error.ServiceUnknown: The name 
com.redhat.NewPrinterNotification was not provided by any .service files
  Sep 15 14:50:23 desktop udev-add-printer: PPD: 
foomatic-db-compressed-ppds:0/ppd/foomatic-ppd/Samsung-ML-1250-pxlmono.ppd; 
Status: 0
  Sep 15 14:50:24 desktop colord: Profile added: ML-1250-Gray..
  Sep 15 14:50:24 desktop colord: Device added: cups-ML-1250
  Sep 15 14:53:51 desktop kernel: [22676.268686] usblp0: removed
  Sep 15 14:54:03 desktop