Bug#982742: cups: config of usb printer now impossible due to usblp and libusb conficting (used to work!)
Am Sun, 14 Feb 2021 15:39:51 +0000
schrieb Brian Potkin <claremont102@gmail.com>:
> On Sun 14 Feb 2021 at 16:17:34 +0100, mh wrote:
>
> > Am Sun, 14 Feb 2021 14:35:53 +0000
> > schrieb Brian Potkin <claremont102@gmail.com>:
> >
> > > On Sun 14 Feb 2021 at 14:47:42 +0100, mh wrote:
> > >
>
> [...]
>
> > > > # systemctl start ipp-usb
> > > > ~#
> > > >
> > > > # systemctl status ipp-usb
> > > > ● ipp-usb.service - Daemon for IPP over USB printer support
> > > > Loaded: loaded (/lib/systemd/system/ipp-usb.service;
> > > > static) Active: active (running) since Sun 2021-02-14 14:01:53
> > > > CET; 32min ago Docs: man:ipp-usb(8)
> > > > Main PID: 854 (ipp-usb)
> > > > Tasks: 10 (limit: 4634)
> > > > Memory: 7.9M
> > > > CPU: 52ms
> > > > CGroup: /system.slice/ipp-usb.service
> > > > └─854 /sbin/ipp-usb udev
> > > >
> > > > Feb 14 14:01:53 neutower systemd[1]: Started Daemon for IPP
> > > > over USB printer support
> > >
> > > That's exactly what should happen. cups-browsed should now
> > > install a queue. Anything from 'lpstat -t' now?
> >
> > Nothing
> >
> > > How about 'lpstat -l -e' and
> >
> > Nothing
> >
> > > 'avahi-browse -rt _ipp._tcp'?
> >
> > Nothing
>
> Inexplicable, especially not getting any outputs from the last two
> commands. I hope you did not type the apostrophes (' ').
I did not ;-)
>
> > But to be clear: Currently there is *no printer installed* here in
> > this system. It has been, but as I could not print I purged cups*
> > entierly and than reinstalled it as described in my initial report.
> > And now in the cups admin webpanel no Oki or USB printer is visible
> > to select a PPD file for (whereas it works fine and reliably in a
> > live ISO system).
>
> The whole point is that the printer installion is done via ipp-usb,
> which you have shown is active on your machine. There is no need for
> you to select a PPD or a vendor driver.
If I could have all features my printer offers available this way, then
yes. OTOH the whole problem does not seam to be the protocol used,
but cups administration not seeing the printer.
Is there a way to completly resett systemd/udev/avahi/whatever? Month
ago I tried "apt install --reinstall systemd udev" as an attempt to
exclude any malfunction.
thanks
Michael
>
> Regards,
>
> Brian.
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