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Groups > linux.debian.user > #211923 > unrolled thread

xsane: incoherent behaviours

Started byPierre Frenkiel <pierre.frenkiel@gmail.com>
First post2019-07-30 19:00 +0200
Last post2019-07-31 18:00 +0200
Articles 9 on this page of 29 — 4 participants

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  xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-30 19:00 +0200
    Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 00:20 +0200
      Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 00:40 +0200
        Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 12:20 +0200
          Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 13:30 +0200
            Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 14:00 +0200
              Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 15:10 +0200
                Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 16:30 +0200
                  Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 16:50 +0200
                    Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 17:40 +0200
                      Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 17:50 +0200
                        Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 19:50 +0200
                          Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 20:20 +0200
                            Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 20:20 +0200
                              Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 20:40 +0200
                                Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 22:00 +0200
                                  Re: xsane: incoherent behaviours Brad Rogers <brad@fineby.me.uk> - 2019-07-31 22:20 +0200
                                    Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-08-01 08:30 +0200
                                      Re: xsane: incoherent behaviours Brad Rogers <brad@fineby.me.uk> - 2019-08-01 10:10 +0200
                                        Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-08-01 10:20 +0200
                                          Re: xsane: incoherent behaviours Brad Rogers <brad@fineby.me.uk> - 2019-08-01 10:30 +0200
                                        Re: xsane: incoherent behaviours Andrei POPESCU <andreimpopescu@gmail.com> - 2019-08-01 16:20 +0200
                                          Re: xsane: incoherent behaviours Brad Rogers <brad@fineby.me.uk> - 2019-08-01 17:00 +0200
                                            Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-08-01 17:20 +0200
                                              Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-08-01 18:10 +0200
                                          Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-08-01 17:10 +0200
              Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 15:20 +0200
                Re: xsane: incoherent behaviours Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-31 17:20 +0200
                  Re: xsane: incoherent behaviours Brian <ad44@cityscape.co.uk> - 2019-07-31 18:00 +0200

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#212042

FromBrad Rogers <brad@fineby.me.uk>
Date2019-08-01 10:30 +0200
Message-ID<yqeDf-4Ed-3@gated-at.bofh.it>
In reply to#212041

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On Thu, 1 Aug 2019 10:10:26 +0200 (CEST)
Pierre Frenkiel <pierre.frenkiel@gmail.com> wrote:

Hello Pierre,

> you are right, but I speak of a backup, it's only the entry i've added.
>   So, I just have to add it to the new models.dat, if any.

Now I understand.  In my mind I was overcomplicating things.

Cheers.

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
Now would I say something that wasn't true?
Would I Lie To You - Eurythmics

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#212057

FromAndrei POPESCU <andreimpopescu@gmail.com>
Date2019-08-01 16:20 +0200
Message-ID<yqk5Y-8fM-7@gated-at.bofh.it>
In reply to#212040

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On Jo, 01 aug 19, 08:37:47, Brad Rogers wrote:
> On Thu, 1 Aug 2019 08:24:22 +0200 (CEST)
> Pierre Frenkiel <pierre.frenkiel@gmail.com> wrote:
> 
> >  thank you for tour warning, but it's not too difficult to make a
> > backup.
> 
> It's not /quite/ that simple.  I know that the update process is
> 'clever' enough to detect user made config changes and offer options,
> but whether that also applies to, in this case, model.dat, IDK.

The only files where one gets a warning are those marked as 'conffiles', 
and they typically reside in /etc (but not all configuration files in 
/etc are 'conffiles').

model.dat being a file in /usr/share it will most likely be overwritten 
without any warning (but I'm too lazy to check).


Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

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#212063

FromBrad Rogers <brad@fineby.me.uk>
Date2019-08-01 17:00 +0200
Message-ID<yqkIG-8ur-3@gated-at.bofh.it>
In reply to#212057

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On Thu, 1 Aug 2019 17:13:59 +0300
Andrei POPESCU <andreimpopescu@gmail.com> wrote:

Hello Andrei,

>model.dat being a file in /usr/share it will most likely be overwritten 
>without any warning (but I'm too lazy to check).

Likewise.   :-)

Cheers for the clarification (which I trimmed for brevity).

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
Black man got a lot of problems, but he don't mind throwing a brick
White Riot - The Clash

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#212067

FromPierre Frenkiel <pierre.frenkiel@gmail.com>
Date2019-08-01 17:20 +0200
Message-ID<yql21-pg-9@gated-at.bofh.it>
In reply to#212063
On Thu, 1 Aug 2019, Andrei POPESCU <andreimpopescu@gmail.com> wrote:

>> model.dat being a file in /usr/share it will most likely be overwritten
>> without any warning (but I'm too lazy to check).

   that's not a big problem:
   a simple "grep" can show whether the file has been updated,
   a simple "cat" can re-introduce my envy_photo entry
   and a simple script can do that automatically.

best regards,
-- 
Pierre Frenkiel 
>

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#212078

FromBrian <ad44@cityscape.co.uk>
Date2019-08-01 18:10 +0200
Message-ID<yqlOq-Ww-11@gated-at.bofh.it>
In reply to#212067
On Thu 01 Aug 2019 at 17:13:43 +0200, Pierre Frenkiel wrote:

> On Thu, 1 Aug 2019, Andrei POPESCU <andreimpopescu@gmail.com> wrote:
> 
> > > model.dat being a file in /usr/share it will most likely be overwritten
> > > without any warning (but I'm too lazy to check).
> 
>   that's not a big problem:
>   a simple "grep" can show whether the file has been updated,
>   a simple "cat" can re-introduce my envy_photo entry
>   and a simple script can do that automatically.

By the time you have twiddled with all of that you could have installed
from stretch backports.

-- 
Brian.

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#212065

FromBrian <ad44@cityscape.co.uk>
Date2019-08-01 17:10 +0200
Message-ID<yqkSl-lV-1@gated-at.bofh.it>
In reply to#212057
On Thu 01 Aug 2019 at 17:13:59 +0300, Andrei POPESCU wrote:

> On Jo, 01 aug 19, 08:37:47, Brad Rogers wrote:
> > On Thu, 1 Aug 2019 08:24:22 +0200 (CEST)
> > Pierre Frenkiel <pierre.frenkiel@gmail.com> wrote:
> > 
> > >  thank you for tour warning, but it's not too difficult to make a
> > > backup.
> > 
> > It's not /quite/ that simple.  I know that the update process is
> > 'clever' enough to detect user made config changes and offer options,
> > but whether that also applies to, in this case, model.dat, IDK.
> 
> The only files where one gets a warning are those marked as 'conffiles', 
> and they typically reside in /etc (but not all configuration files in 
> /etc are 'conffiles').
> 
> model.dat being a file in /usr/share it will most likely be overwritten 
> without any warning (but I'm too lazy to check).

It certainly will be overwritten if there is a new version of
libsane-hpaio or, for that matter, if that package is reinstalled.
Making a backup of an existing file after changing it isn't really
necessary. A new version of models.dat would likely include data
for newly supported devices, as happens with libsane-hpaio from
stretch backports.

-- 
Brian.

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#211973

FromBrian <ad44@cityscape.co.uk>
Date2019-07-31 15:20 +0200
Message-ID<ypWGl-1KK-1@gated-at.bofh.it>
In reply to#211965
On Wed 31 Jul 2019 at 13:52:29 +0200, Pierre Frenkiel wrote:

>   Here are the outputs of scanimage on my desktop:
> 
>    scanimage: open of device hpaio:/net/HP_LaserJet_MFP_M227-M231?ip=192.168.1.41 failed: Error during device I/O
>    scanimage: open of device hpaio:/net/laserjet_mfp_m227-m231?ip=192.168.1.41&queue=false failed: Error during device I/O

Install the non-free plugin on your desktop (or laptop). 'hp-plugin' should do it.

(Yes, I know upstream HPLIP says you do not need one).

-- 
Brian.

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#211983

FromPierre Frenkiel <pierre.frenkiel@gmail.com>
Date2019-07-31 17:20 +0200
Message-ID<ypYyt-2Ve-1@gated-at.bofh.it>
In reply to#211973
On Wed, 31 Jul 2019, Brian wrote:

> On Wed 31 Jul 2019 at 13:52:29 +0200, Pierre Frenkiel wrote:
>
>>   Here are the outputs of scanimage on my desktop:
>>
>>    scanimage: open of device hpaio:/net/HP_LaserJet_MFP_M227-M231?ip=192.168.1.41 failed: Error during device I/O
>>    scanimage: open of device hpaio:/net/laserjet_mfp_m227-m231?ip=192.168.1.41&queue=false failed: Error during device I/O
>
> Install the non-free plugin on your desktop (or laptop). 'hp-plugin' should do it.
>
> (Yes, I know upstream HPLIP says you do not need one).

   it is already installed. When I run it, it says:

     error: Unable to open /data/home/frenkiel/.hplip/hp-plugin.lock lock file.

    I tried to create this file (touch ...), but I get the same error


on both laptops, the driver plugin was successfully installed with the same command.

best regards,
-- 
Pierre Frenkiel

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#211986

FromBrian <ad44@cityscape.co.uk>
Date2019-07-31 18:00 +0200
Message-ID<ypZbc-38O-11@gated-at.bofh.it>
In reply to#211983
On Wed 31 Jul 2019 at 17:18:16 +0200, Pierre Frenkiel wrote:

> On Wed, 31 Jul 2019, Brian wrote:
> 
> > On Wed 31 Jul 2019 at 13:52:29 +0200, Pierre Frenkiel wrote:
> > 
> > >   Here are the outputs of scanimage on my desktop:
> > > 
> > >    scanimage: open of device hpaio:/net/HP_LaserJet_MFP_M227-M231?ip=192.168.1.41 failed: Error during device I/O
> > >    scanimage: open of device hpaio:/net/laserjet_mfp_m227-m231?ip=192.168.1.41&queue=false failed: Error during device I/O
> > 
> > Install the non-free plugin on your desktop (or laptop). 'hp-plugin' should do it.
> > 
> > (Yes, I know upstream HPLIP says you do not need one).
> 
>   it is already installed. When I run it, it says:
> 
>     error: Unable to open /data/home/frenkiel/.hplip/hp-plugin.lock lock file.
> 
>    I tried to create this file (touch ...), but I get the same error
> 
> 
> on both laptops, the driver plugin was successfully installed with the same command.

Previously, scanning didn't work on the laserjet from your laptop. Does
it work now?

-- 
Brian.

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