I have just found the following message in syslog:
Feb 12 13:25:56 samsung5-ubuntu colord-sane: message repeated 2 times: [ [bjnp]
create_broadcast_socket: ERROR - bind socket to local address failed - Cannot
assign requested address]
that matches:
● colord.service - Manage, Install and Generate Color Profiles
Loaded: loaded (/lib/systemd/system/colord.service; static; vendor preset:
enabled)
Active: active (running) since Tue 2019-02-12 02:30:41 CET; 11h ago
Main PID: 2098 (colord)
Tasks: 3 (limit: 4915)
Memory: 14.9M
CGroup: /system.slice/colord.service
└─2098 /usr/lib/colord/colord
Feb 12 02:30:41 samsung5-ubuntu systemd[1]: Starting Manage, Install and
Generate Color Profiles...
Feb 12 02:30:41 samsung5-ubuntu systemd[1]: Started Manage, Install and
Generate Color Profiles.
Feb 12 02:30:42 samsung5-ubuntu colord[2098]: failed to get session [pid 2118]:
No data available
Feb 12 02:30:42 samsung5-ubuntu colord-sane[2240]: [bjnp]
create_broadcast_socket: ERROR - bind socket to local address failed - Cannot
assign requested address
This lead me to investigate the SANE scanner and more specifically
/etc/sane.d/dll.conf which seems to list image scanner hardware drivers,
including canon ones.
However, commenting out 'net' or all canon-related lines does not change
anything:
# systemctl restart colord
# systemctl status colord
● colord.service - Manage, Install and Generate Color Profiles
Loaded: loaded (/lib/systemd/system/colord.service; static; vendor preset:
enabled)
Active: active (running) since Tue 2019-02-12 14:21:12 CET; 4s ago
Main PID: 31838 (colord)
Tasks: 4 (limit: 4915)
Memory: 8.0M
CGroup: /system.slice/colord.service
└─31838 /usr/lib/colord/colord
Feb 12 14:21:12 samsung5-ubuntu systemd[1]: Starting Manage, Install and
Generate Color Profiles...
Feb 12 14:21:12 samsung5-ubuntu systemd[1]: Started Manage, Install and
Generate Color Profiles.
Feb 12 14:21:13 samsung5-ubuntu colord-sane[31859]: [bjnp]
create_broadcast_socket: ERROR - bind socket to local address failed - Cannot
assign requested address
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1671974
Title:
CUPS - Excessive Amounts of UDP Multicast Traffic for BJNP
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1671974/+subscriptions
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