[sane-devel] I/O Errors with hp 7400c

[Wolf Drechsel]

Hello Olaf,

thanks for your attention - greatly appreciated! 

> > I tried
> > SANE_DEBUG_AVISION=7 scanimage > testfile 2>scannerfehler2.txt
> > 
> > and produced the file attached. (After this attempt my machine's
> > USB
> > bus was blocked again, so a cold reboot was required)
> 
> Was this on the same machine as where you tried with debian 8.6?  Was
> the scanner plugged into the same USB port?
> 

Yes, the all the experimental settings were the same (exept debian
would not boot on my 1920px monitor, so I attached a 1280px instead).

> I've looked at the log and it seems that the scanner doesn't reply.
> At line 1109, it says:
> 
>   [avision] No data arrived.
> 
> This could be indicative of a USB3 issue, something Simon Matter
> already
> mentioned.  To get a better picture of what's going on at the USB
> level,
> could you provide a compressed log made with:
> 
>   SANE_DEBUG_AVISION=8 SANE_DEBUG_SANEI_USB=5 scanimage > testfile

I made two attempts - on the first (files with index digit 3) the scan
was completed properly (result not included), I could do a second one
(files with index digit 4) which stopped after a fraction of the page.

Greetings,
Wolf 
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