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.
--
Brian.
