On Thu 16 Feb 2017 at 22:38:59 +0000, Brian Potkin wrote:
> On Sat 11 Feb 2017 at 12:24:37 +0100, Didier 'OdyX' Raboud wrote:
>
> Hello Svante and OdyX. Let's see if we can make some progress. Reports
> of this nature ('scanimage -L' working but scanning not taking place
> because of an I/O error) are not unknown. I've not seen anything which
> satisfactorily explains this behaviour, even on the sane-devel list.
>
> > Le vendredi, 10 février 2017, 21.46:05 h CET Svante Signell a écrit :
> > > I view of the imminent release I'm upgrading the severity, since there has
> > > been no replies so far, really strange.
> >
> > Please don't mix severities, release schedule and maintainer
> > responsiveness,
> > they have nothing to do with eachothers, at all. This bug is rightfully
> > 'important', hereby downgrading.
>
> Agreed.
>
> > > Do you not get reports about bugs via the bug tracker?
> >
> > I do; it doesn't mean I have time to respond anything meaningful. Bug
> > squasing
> > can take some time, and hardware-related bugs are even harder: I don't have
> > a
> > scanner at home. It's only been _ten_ days too.
>
> Scanning problems are not the easiest to debug, but a couple of aspects
> should be clarified. Firstly, there is no connection between the printing
> and scanning functions of a device. They are separate processes. One can
> work and the other not.
>
> Secondly, the MFP M277DW does Bonjour broadcasting. All that is need to
> scan is sane-utils and libsane-hpaio (both without their recommended
> packages). Neither hplip nor avahi-daemon is required, It would be great
> if such an environment were set up to test the existence of the problem
> reported.
>
> > > How come 3.16.7-1 works and not later versions?
> >
> > I don't know, but here are the facts I could gather:
> > * there are no significant differences in the Debian packaging;
> > * the only relevant difference regarding hpaio is the addition of more
> > models
> > (but nothing related to your model) in scan/sane/hpaio.desc
>
> Seeing log1 and log2 might provide a clue.
>
> SANE_DEBUG_DLL=128 scanimage -L 2>log1
> SANE_DEBUG_DLL=128 scanimage > image.pnm 2>log2
>
> My /etc/sane.d.dll.d/hplip has "hpaio". /etc/sane.d/dll.conf has only
> the line "net" (the other backends are not required). saned.conf is
> effectively empty.
>
> > When you write that "3.16.7-1" works, is that the version of the Debian
> > package? (I ask because that version is not an hplip Debian release).
>
> Please clarify.
>
> > Can you confirm using http://snapshot.debian.org/package/hplip/ until
> > exactly
> > which version it works, and from which version it fails?
>
> Would be very useful.
YAP (Yet Another Ping :) )
--
Brian.
