Bug#853783: ping
On Mon 27 Feb 2017 at 17:58:18 +0100, Svante Signell wrote:
> > On Sat 11 Feb 2017 at 12:24:37 +0100, Didier 'OdyX' Raboud wrote:
An incorrect attribution.
> > 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
>
> Attached are the logfiles from log1_3.16.7-1, log2_3.16.7-1 and log2_3.16.11-2.
> (log1_3.16.7-1 and log1_3.16.11-2 are identical)
Thanks.
> > My /etc/sane.d.dll.d/hplip has "hpaio".
>
> I don't have this file.
A typo. /etc/sane.d/dll.d/hplip.
> > /etc/sane.d/dll.conf has only
> > the line "net" (the other backends are not required).
>
> net in my file too.
Good.
> > saned.conf is effectively empty.
>
> I have localhost, 127.0.0.1 and 192.168.1.0 as permitted hosts/networks.
We are talking about files on the client machine, I hope. The client
does not have to permit any connections to its saned daemon. It is only
needed on a saned *server*.
(I would question localhost and 127.0.0.1 as entries as connections from
the local server machine to the scanner would be permitted anyway.
Shouldn't 192.168.1.0 be something like 192.168.1.0/24?).
> > > 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.
>
> Please do.
We were hoping you would say explicitly what the Debian version was.
> > > 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.
>
> Installed packages are the latest (3.16.11+repack0-2)
> hplip
> hplip-data
> libhpmud0
> libsane-hpaio
> printer-driver-hpcups
>
> These packages are downgraded to 3.16.7+repack0-1 to get a working scanner:
> libsane-hpaio
> libhpmud0
These two packages (plus sane-utils) are all that is needed on the
client. I've tried 3.16.11+repack0-2 and 3.16.7+repack0-1 versions and
both work for me.
> 3.16.9+repack0-2 has also been tried but fails!
>
> Comments on the printer driver setup:
> - Setting up the printer with socket://192.168.1.4, as detected when setting up
> from localhost:631 makes the printer work, but the scanner is not found. Printer
> works.
>
> - Setting up the printer with hp-makeuri (from hplip) and using
> hp:/net/HP_Color_LaserJet_MFP_M277dw?ip=192.168.1.4 as connection makes the
> scanner detectable. Printer works, scanner detected. Works with 3.16.7 not
> 3.16.9/3.16.11.
>
> (In both cases I use the same ppd-file, downloaded from HP:hp-
> color_laserjet_pro_mfp_m277-ps.ppd.gz)
As mentioned previously your device does bonjour broadcasting and both
printer and scanner will be advertised in this way without the device
being connected to a computer. In your very first mail you had:
scanimage -L
device `hpaio:/net/HP_Color_LaserJet_MFP_M277dw?ip=192.168.1.4' is a Hewlett-Packard HP_Color_LaserJet_MFP_M277dw all-in-one
This is a net URI and could only have come from a Bonjour broadcast.
There is also a twist to this. If an HP device is connected via USB to a
computer with SANE on it the scanner will not be visible to client
machines. Please see #807427 and #838212.
[Some snipping]
> [dll] sane_get_devices: found 1 devices
> [dll] sane_open: trying to open `hpaio:/net/HP_Color_LaserJet_MFP_M277dw?ip=192.168.1.4'
> scanimage: open of device hpaio:/net/HP_Color_LaserJet_MFP_M277dw?ip=192.168.1.4 failed: Error during device I/O
> [dll] sane_exit: exiting
I get
[dll] load: searching backend `hpaio' in`/usr/lib/i386-linux-gnu/sane:/usr/lib/sane'
[dll] load: trying to load`/usr/lib/i386-linux-gnu/sane/libsane-hpaio.so.1'
[dll] load: dlopen()ing`/usr/lib/i386-linux-gnu/sane/libsane-hpaio.so.1'
[dll] init: initializing backend `hpaio'
[dll] init: backend `hpaio' is version 1.0.0
[dll] sane_get_devices: found 1 devices
[dll] sane_open: trying to open `hpaio:/net/envy_4500_series?ip=192.168.7.235&queue=false'
[dll] sane_open: open successful
The only thing I can think of is the plugin your device needs for
scanning. The minimum version required is 3.15.4. Later versions are at
https://www.openprinting.org/download/printdriver/auxfiles/HP/plugins/
Download and install with hp-plugin.
Cheers,
--
Brian.
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