sane-project-website/old-archive/1998-10/0203.html

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<!-- name="Dr. Andreas Bolsch" -->
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<!-- subject="Re: New version of Mustek backend - 6000SP, 12000SP" -->
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<title>sane-devel: Re: New version of Mustek backend - 6000SP, 12000SP</title>
<h1>Re: New version of Mustek backend - 6000SP, 12000SP</h1>
<b>Dr. Andreas Bolsch</b> (<a href="mailto:a.bolsch@ic.ac.uk"><i>a.bolsch@ic.ac.uk</i></a>)<br>
<i>Mon, 19 Oct 1998 11:17:30 +0100</i>
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<li> <b>Next message:</b> <a href="0204.html">Dr. Andreas Bolsch: "Re: unsupported scanner-model"</a>
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Well, as mentioned in the README, if parts of the<br>
image seem to be shifted horizontally this is <br>
probably not related to the line distance/color<br>
separation but to buffer overflow. If you have your<br>
harddisk connected to the same SCSI controller there<br>
is probably no solution. Otherwise the only cure<br>
I can suggest is to kill *EVERYTHING* not absolutely<br>
necessary for scanning and to disable swapping.<br>
Or, to patch the kernel to allow a request size of<br>
16 MByte, say, and then to change (in mustek.c)<br>
#define BUFFERS 32<br>
to<br>
#define BUFFERS 1<br>
And, I will check whether 'touching' all pages belonging<br>
to buffers used by the backend prior to start scanning<br>
helps.<br>
<p>
<pre>
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<ul>
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<li> <b>Next message:</b> <a href="0204.html">Dr. Andreas Bolsch: "Re: unsupported scanner-model"</a>
<li> <b>Previous message:</b> <a href="0202.html">Dr. Andreas Bolsch: "Re: Problem with a Trust Imagery 4800SP"</a>
<li> <b>Maybe in reply to:</b> <a href="0193.html">Dr. Andreas Bolsch: "New version of Mustek backend - 6000SP, 12000SP"</a>
<!-- nextthread="start" -->
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