Re: The Case of the Disappearing Scanner

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On Sat, 2017-04-22 at 12:40 +0100, Patrick O'Callaghan wrote:
> On Fri, 2017-04-21 at 08:06 -0700, stan wrote:
> > On Fri, 21 Apr 2017 13:37:55 +0100
> > Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
> > 
> > > I have a Brother DCP-7055W all-in-one laser printer and scanner,
> > > connected by Wifi to my LAN. The printer works perfectly, and the
> > > scanner worked at least up until a couple of weeks ago when I last
> > > used it. Now, it seems to have disappeared. Both simple-scan and
> > > scanimage report no scanners found.
> > > 
> > > I've reinstalled the RPM package downloaded from brother.com. I've
> > > rebooted Fedora (you never know). I've also checked that the scanner
> > > itself is working (from a Windows laptop).
> > > 
> > > What else can I try?
> > 
> > When I grep the /var/log/dnf.rpm.log-2017* files, I find that there was
> > an update of all the sane packages on March 25, 2017, and the kde sane
> > packages on March 26, 2017. I suspect that that somehow introduced a
> > regression for you. You could try downgrading from Koji packages, or
> > looking for rpmnew configuration files.
> > 
> > For some reason, bugzilla.redhat.com isn't available right now, so I
> > couldn't check for open problem tickets.  But, that would be your next
> > step, opening a ticket if there isn't already one opened.
> 
> No rpmnew files in /usr/lib64/*. I'll check BZ and consider
> downgrading.

Well BZ seems to be broken at the moment. I rolled back to version
1.0.25-4 (October 2016) and it made no difference, even after
reinstalling the Brother package and power cycling the printer. Note
that it still prints wirelessly.

Could it be a firewall issue? Seems unlikely as the print function
works, but I'm clutching at straws here. Not sure what ports to check.

poc
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