Could you add the output from those commands
$ journalctl -f
click the toggle and copy what was printed in the log
$ nmcli d status
do you get any error if you start manually?
$ /usr/lib/vino/vino-server
also what interface is the settings panel listing at the bottom is that
your correct eth one? the return code seems to suggest n-m thinks you
are offlin
** Changed in: gnome-control-center (Ubuntu)
Importance: Undecided => Low
** Changed in: gnome-control-center (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1876884
Title:
Unable to enable screen sharing after upgrade to 20.04
Status in gnome-control-center package in Ubuntu:
Incomplete
Bug description:
After upgrading ubuntu desktop from 19.10 to 20.04, it's impossible to enable
screen sharing.
It used to work fine on 19.10.
When clicking the enable/disable toggle, the following message is
logged in journalctl:
Failed to enable service vino-server:
GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Sharing cannot be
enabled on this network, status is '0'
This is reproducible on both computers I've upgraded. They're both on
the latest 20.04 package updates as of today.
I've done some research to rule out common faults:
$ cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
(Yes, I've ofc ran netplan apply, but the file already had this
content anyway.)
$ cat /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
Also, this seems unrelated to #1871787:
$ dpkg -l |grep gnome-settings-daemon
ii gnome-settings-daemon 3.36.0-1ubuntu2
ii gnome-settings-daemon-common 3.36.0-1ubuntu2
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-01-17 (108 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Package: gnome-control-center 1:3.36.1-1ubuntu5
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Tags: focal
Uname: Linux 5.4.0-28-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-04-28 (6 days ago)
UserGroups:
_MarkForUpload: True
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