Syslog shows many entries when colord is starting:
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (SNMPv2-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (IF-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (IP-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (TCP-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (UDP-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (HOST-RESOURCES-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (NOTIFICATION-LOG-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (DISMAN-EVENT-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (DISMAN-SCHEDULE-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (HOST-RESOURCES-TYPES): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (MTA-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (NETWORK-SERVICES-MIB): At line 1 in (none)
Aug 17 12:44:05 sparky colord[1781]: Cannot find module (SNMPv2-TC): At line 15 in /usr/share/snmp/mibs/UCD-DISKIO-MIB.txt
...
...
to solve this issue: sudo apt-get install snmp
check it:
tail -f /var/log/syslog
service colord restart
side note: I'm not sure if colord was installed by default as I did some minor tweaks to the system.