sane-project-website/old-archive/1997-02/0048.html

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<!-- name="David Mosberger-Tang" -->
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<!-- subject="Re: color scanning and MFS-6000CX" -->
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<title>sane-devel: Re: color scanning and MFS-6000CX</title>
<h1>Re: color scanning and MFS-6000CX</h1>
<b>David Mosberger-Tang</b> (<a href="mailto:davidm@azstarnet.com"><i>davidm@azstarnet.com</i></a>)<br>
<i>Tue, 8 Apr 1997 10:45:26 -0700</i>
<p>
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<i>&gt;&gt;&gt;&gt;&gt; On Tue, 8 Apr 1997 18:58:16 +0059 (MDT), "Mathias Weigt (Stud. 94)" &lt;<a href="mailto:p5iba@medchem2.pharmazie.uni-halle.de">p5iba@medchem2.pharmazie.uni-halle.de</a>&gt; said:</i><br>
<p>
Mathias&gt; The preview still needs a 16 bit color display, it crashes<br>
Mathias&gt; with 256 colors.<br>
<p>
Does anybody else have this problem? My X server can't do anything<br>
but 8 bpp and it works fine here. What X server and what GTK version<br>
are you using? Could you run xscan from within gdb and send me the<br>
stack trace and program output you get when it crashes? I'd recommend<br>
to build SANE like this for easy debugging:<br>
<p>
$ make distclean<br>
$ CFLAGS="-g -O -Wall" ./configure --disable-shared<br>
$ make<br>
<p>
then, to get the stack trace, do:<br>
<p>
$ cd frontend<br>
$ gdb xscan<br>
gdb&gt; run --sync<br>
[...program should segfault...]<br>
gdb&gt; bt<br>
[...here comes the backtrace i'm interested in...]<br>
<p>
Mathias&gt; The qcam backand doesn`t compile:<br>
<p>
This works fine here (w/Red Hat 4.1 and Linux kernel v2.0.27. It<br>
looks as if the kernel header files on your system are messed up (it<br>
must be possible to include &lt;asm/io.h&gt; by itself). What kernel<br>
version are you using? You might want to report this to the x86<br>
kernel hackers.<br>
<p>
Mathias&gt; Enough from my neverending-scanning story.<br>
<p>
It would be faster to debug if I had access to a machine with a 3-pass<br>
scanner. If you want/can give me access to your scanner, I'd be happy<br>
to look into it.<br>
<p>
--david<br>
<p>
<pre>
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<ul>
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<li> <b>Next message:</b> <a href="0049.html">David Mosberger-Tang: "anybody with a Mustek 3-pass scanner?"</a>
<li> <b>Previous message:</b> <a href="0047.html">Mathias Weigt: "Re: color scanning and MFS-6000CX"</a>
<li> <b>Maybe in reply to:</b> <a href="0045.html">Mathias Weigt: "color scanning and MFS-6000CX"</a>
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