You have been subscribed to a public bug:
Problem: In admin panel "Sharing - Screen Sharing" dialog, not able to
activate Screen Sharing.
The Screen Sharing dialog box, (bottom "Network" part of it) says there
is "No networks selected for sharing". It should at least show "Wired
Connection 1", as in fact the wired connection is working perfectly (the
box has internet connection in and out, and I am able to connect to it
using ssh).
As the sharing dialog does not show any available networks to pick from,
it is not possible to activate the sharing.
Another problem indicator is that the desktop systray network icon does
not show up, even if the box is connected to fully working wired
ethernet connection, and internet is working in and out of the machine.
Also, in admin panel "Network" configuration dialog, there is no visible
config area for "Wired Connections". It appear as the computer has no
network cards at all, only the VPN and Proxy settings are visible.
*****
Possible related problem with drivers: I tried 'ubuntu-drivers devices' in
order to find correct drivers for my graphic card. The output from the command
was simply nothing at all, it just reverted to the empty clean command prompt.
root@mybox:~# ubuntu-drivers devices
root@mybox:~#
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.6-2ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Fri May 4 18:18:02 2018
IfupdownConfig:
# ifupdown has been replaced by netplan(5) on this system. See
# /etc/netplan for current configuration.
# To re-enable ifupdown on this system, you can run:
# sudo apt install ifupdown
InstallationDate: Installed on 2018-04-29 (4 days ago)
InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
IpRoute:
default via 192.168.0.1 dev enp4s0 proto dhcp src 192.168.0.199 metric 100
192.168.0.0/24 dev enp4s0 proto kernel scope link src 192.168.0.199
192.168.0.1 dev enp4s0 proto dhcp scope link src 192.168.0.199 metric 100
IwConfig:
enp5s0 no wireless extensions.
lo no wireless extensions.
enp4s0 no wireless extensions.
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
RfKill:
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT
AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH
SLAVE
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
CONNECTION CON-UUID CON-PATH
enp4s0 ethernet unmanaged /org/freedesktop/NetworkManager/Devices/2 --
-- --
enp5s0 ethernet unmanaged /org/freedesktop/NetworkManager/Devices/3 --
-- --
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 --
-- --
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN
running 1.10.6 disconnected started unknown enabled enabled
enabled enabled enabled
** Affects: gnome-control-center (Ubuntu)
Importance: Low
Status: Incomplete
** Tags: amd64 apport-bug bionic
--
In admin panel "Sharing - Screen Sharing". Dialog box, (bottom "Network" part
of it) says there is "No networks selected for sharing". (Nothing to select)
Server don't detect actual working wired connections.
https://bugs.launchpad.net/bugs/1769206
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Bugs, which is subscribed to gnome-control-center in Ubuntu.
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