There's a whole bunch of these in the Error Tracker so that'll be a useful data point when verifying the fix. Although, you'd need to dig into the Dependencies to find the sane-backends version.
https://errors.ubuntu.com/bucket/?id=/usr/lib/colord/colord-sane %3Acolord-sane%3A%20simple- watch.c%3A454%3A%20avahi_simple_poll_prepare%3A%20Assertion%20%60s-%3Estate%20%3D%3D%20STATE_INIT%20%7C%7C%20s-%3Estate%20%3D%3D%20STATE_DISPATCHED%20%7C%7C%20s-%3Estate%20%3D%3D%20STATE_FAILURE%27%20failed. ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1351286 Title: colord-sane assert failure: colord-sane: simple-watch.c:454: avahi_simple_poll_prepare: Assertion `s->state == STATE_INIT || s->state == STATE_DISPATCHED || s->state == STATE_FAILURE' failed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1351286/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs