Seeing the same on a fresh (as of last week) Xubuntu 16.04 install (4.4.0-62-generic) with all the latest updates;
Feb 3 14:07:17 vader systemd[1]: Started CUPS Scheduler. Feb 3 14:07:17 vader colord[1453]: (colord:1453): Cd-WARNING **: failed to get session [pid 6191]: No such device or address Feb 3 14:07:17 vader colord[1453]: (colord:1453): Cd-WARNING **: failed to get session [pid 6191]: No such device or address -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442050 Title: (colord:832): Cd-WARNING **: failed to get session [pid 690]: Unknown error -2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1442050/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs