Control: tags -1 - moreinfo On Mon, Jan 01, 2018 at 12:46:47AM +0000, Brian Potkin wrote: > Thanks you for your report, Helmut.
Thanks for looking into this. > On Wed 30 Nov 2016 at 20:57:01 +0100, Helmut Grohne wrote: > > Since Debian jessie, cups uses avahi to broadcast its printers to the > > local network. I have a jessie cups with a few printers and publish them > > via avahi. Now I am seeing a little weird behaviour on client systems: > > After booting their cups daemons know about the broadcasted printers, > > but after some time (usually a few times a day) they forget. I have no > > What are the symptoms? How do you know that the printing system does > not see the remote broadcasted printers on the clients? When printers are broadcasted, client cups systems create /etc/cups/ppd/<something>.ppd for each remote printer. These files exist after booting and then vanish. Another way to diagnose the presence of the issue is running "lpstat -a". After boot, it lists all the printers, but after a while, the output becomes "lpstat: No destinations added." When I try to print something (e.g. using evince), I am presented with an empty printer list. Then I restart avahi-daemon on the client system and the files are back and "lpstat -a" gives a printer list again until it forgets again. > First things first. Are you still experiencing this behaviour on an > up-to-date unstable/testing system? Yes. I see this behaviour on stretch and sid. Is there anything else I can check? Maybe trace something? Turn on some debug logging somewhere? The issue is sufficiently annoying that I am willing to put some time into it. Helmut
