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<!-- received="Sun Oct 5 11:10:32 1997 MST" -->
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<!-- sent="Sun, 5 Oct 1997 20:09:57 +0200 (MEST)" -->
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<!-- name="Stefan Luettringhaus-Kappel" -->
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<!-- email="stefan@uran.informatik.uni-bonn.de" -->
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<!-- subject="Re: sane-0.65 released" -->
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<!-- inreplyto="m0xHr4e-000BYrC@charon.beck-sw.de" -->
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<title>sane-devel: Re: sane-0.65 released</title>
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<h1>Re: sane-0.65 released</h1>
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<b>Stefan Luettringhaus-Kappel</b> (<a href="mailto:stefan@uran.informatik.uni-bonn.de"><i>stefan@uran.informatik.uni-bonn.de</i></a>)<br>
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<i>Sun, 5 Oct 1997 20:09:57 +0200 (MEST)</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#9">[ date ]</a><a href="index.html#9">[ thread ]</a><a href="subject.html#9">[ subject ]</a><a href="author.html#9">[ author ]</a>
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<li> <b>Next message:</b> <a href="0010.html">Franck SCHNEIDER: "Re: AGFA SnapScan backend"</a>
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<li> <b>Previous message:</b> <a href="0008.html">becka@rz.uni-duesseldorf.de: "Re: sane-0.65 released"</a>
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<li> <b>In reply to:</b> <a href="0008.html">becka@rz.uni-duesseldorf.de: "Re: sane-0.65 released"</a>
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<li> <b>Next in thread:</b> <a href="0019.html">Michael Ritzert: "Re: sane-0.65 released"</a>
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</ul>
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<!-- body="start" -->
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On Sun, 5 Oct 1997 <a href="mailto:becka@rz.uni-duesseldorf.de">becka@rz.uni-duesseldorf.de</a> wrote:<br>
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<p>
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<i>> Hi !</i><br>
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<i>> </i><br>
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<i>> > has there been any progress with respect to the MFS-12000SP problems which</i><br>
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<i>> > were investigated in David's survey? Last version I tried was 0.62.</i><br>
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<i>> We have tried to investigate it, but need more test-data.</i><br>
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<i>> </i><br>
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<i>> The problem with the Lineart mode hanging seems to be timing related and there</i><br>
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<i>> is a hack for it by M. Ritzert. (R U reading ? Maybe you should send it to the</i><br>
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<i>> list).</i><br>
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<i>> </i><br>
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<i>> The other problem with the occasional hangs occuring for some parameter sets</i><br>
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<i>> is not yet solved, though I have a faint idea about the cause.</i><br>
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<i>> </i><br>
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<p>
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Well, I never had any hangs. My problem, which was reported by others as<br>
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well, is missing scan lines in color and gray mode. I'll try any patches,<br>
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but I really have no time to have a deeper look into the sources. I include<br>
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my answer to David's survey, just in case.<br>
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<p>
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Regards,<br>
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Stefan<br>
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<p>
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<pre>
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--
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Dr. Stefan L<>ttringhaus-Kappel <><><><><><><><><><><><><><><><><><><><><>
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Institut f<>r Informatik III Phone +49 (228) 73-4536
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Universit<EFBFBD>t Bonn Fax +49 (228) 73-4382
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R<EFBFBD>merstra<EFBFBD>e 164 <a href="mailto:stefan@uran.informatik.uni-bonn.de">stefan@uran.informatik.uni-bonn.de</a>
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D-53117 Bonn (Germany) <a href="http://www.informatik.uni-bonn.de/~stefan/">http://www.informatik.uni-bonn.de/~stefan/</a>
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<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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<p>
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8< ------------------------------- (snip)
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<p>
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- What version of SANE are you using?
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<p>
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0.62 (similar problems with previous versions)
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<p>
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- How was SANE configured? Did you use the --disable-ld-fix option?
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<p>
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no, --disable-ld-fix makes ugly colored shadows everywhere in the image.
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<p>
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Also, I have to comment out
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... dev->flags |= MUSTEK_FLAG_LD_MFS
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although my scanner is only version 1.00. Otherwise the 360dpi image
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gets single reddish lines at scsi buffer boundaries.
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<p>
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- What SCSI adapter are you using?
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<p>
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Asus SC-200 (NCR53C810), the scanner is the only device on this host:
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<p>
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stefan@piano ~: cat /proc/scsi/ncr53c8xx/1
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General information:
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Chip NCR53C810, device id 0x1, revision id 0x1
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IO port address 0xe400, IRQ number 11
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Using memory mapped IO at virtual address 0x4843000
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Synchronous period factor 25, max commands per lun 4
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Profiling information:
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num_trans = 1
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num_kbytes = 0
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num_disc = 0
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num_break = 1
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num_int = 18
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num_fly = 2
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ms_setup = 0
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ms_data = 10
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ms_disc = 0
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ms_post = 0
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<p>
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- Does grayscale scanning work fine at various resolutions and without
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dropped lines (e.g., try to scan a diagonal line to detect dropped
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lines). If not, does it work for certain resolutions or do other
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settings (such as "force backtracking") affect the result?
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<p>
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No, it doesn't work fine. several scan lines are dropped at intervals
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corresponding to the scsi buffer size, both at 32k and 128k. This
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happens at all resolution, both below and above 300 dpi.
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The Rest of the image is fine (apart from the missing lines).
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<p>
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(By the way, using 128k instead of 127.5k never resulted in any
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problems, neither with the scanner, nor scsi disks, cd-rom nor dat
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streamer.)
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<p>
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AND, STRANGELY (?): scanning the same area takes 30secs at 300dpi, but
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84 secs at 302dpi. Something is fundamentally different at > 300dpi.
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<p>
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- Does color scanning work? If not, does it work for certain resolutions?
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Describe the kind of errors you see.
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<p>
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Quite similar to Gray, but here a range of lines is repeated. I think
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I had missing lines, too, but I can't reproduce it now. At the
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boundaries color error appear in addition to the extra lines.
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<p>
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Errors occur at 300dpi and below but not above; at 302dpi and 360dpi,
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for example, everything is fine. But it again takes much longer.
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<p>
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- Include the output of command:
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SANE_DEBUG_MUSTEK=3 scanimage -h -d mustek >/dev/null
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<p>
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[sanei_init_debug]: Setting debug level of mustek to 3.
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[mustek] sane_init: strip-height set to 1 inches
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[mustek] attach: opening /dev/scanner
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[mustek] attach: sending INQUIRY
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[mustek] wait_ready: sending TEST_UNIT_READY
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[mustek] attach: firmware revision 1.00
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[mustek] attach: found Mustek scanner model MFS-12000SP (flatbed scanner),
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1-pass
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<p>
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<p>
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
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</pre>
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<!-- body="end" -->
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0010.html">Franck SCHNEIDER: "Re: AGFA SnapScan backend"</a>
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||
<li> <b>Previous message:</b> <a href="0008.html">becka@rz.uni-duesseldorf.de: "Re: sane-0.65 released"</a>
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<li> <b>In reply to:</b> <a href="0008.html">becka@rz.uni-duesseldorf.de: "Re: sane-0.65 released"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0019.html">Michael Ritzert: "Re: sane-0.65 released"</a>
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<!-- reply="end" -->
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</ul>
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