# [Fwd: SANE 1 - Microtek ScanMaker 636 causes global SCSI Timeout !]

Emmanuel PIERRE (epierre@e-nef.com)
Tue, 23 Feb 1999 20:40:13 +0100

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Hi,

I've solved my problem with my Microtek ScanMaker 636 by buying a cheap
AVA 2902 for it only... AND IT WOKS ! (and fine !)

please inform anybody for this "cheap scsi interface" problem with
microtek ...

Emmanuel

from Doug Ledford <dledford@redhat.com>

> and always when I use sane 1 with my mycrotek ScanMaker 636 (Scsi 2)
scanner,
> I have SCSI timeouts resulting in... a reboot for I have my linux on the
scsi
> HD.

This is a totally different problem and usually related to very poor
scanner interface design on the part of the scanner maker. I would
suggest you get a separate 2902 or similar card for the scanner since no
amount of intelligence in the driver can work around truly poor firmware
designs in scanners. Now, having said that, I can't test this since I
don't own a scanner and I could be wrong, but that's been my impression
when fixing these problems in the past.

    --
    -= Emmanuel PIERRE            ICQ: 19153556         epierre@e-nef.com =-
    http://www.e-nef.com/users/epierre                http://www.apr-job.com
    P E R L  &  L I N U X                             http://www.parinux.org
    There is never enough freedom                         QUID ME ANXIUS SUM

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    Message-ID: <36BDF4B6.9C1AF1B9@e-nef.com>
    Date: Sun, 07 Feb 1999 21:16:54 +0100
    From: Emmanuel PIERRE <epierre@e-nef.com>
    Reply-To: epierre@mail.esiea.fr
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    To: sane-devel@mostang.com., mtek-bugs@mir.com
    Subject: SANE 1 - Microtek ScanMaker 636 causes global SCSI Timeout !
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    Hi,

        well, sane 1.00 bugs my AIC 7890 controller with timeouts that force me to
    use
    the "Microsoft button" ;-) which is not fun for 18 Go checking next ...

        my actual conf is kernel 2.2.1 with an Asus MB+AIC 7890 (2x8.7 Go DD UW on

    U2 slot, and external chain on UW slot ...).

        I don't know what you mean by microtek2 (I hope it is not scsi2 because
    the
    SCSI slot is SCSI 1....)

    TIA,

            Emmanuel

    some infos:

    microtek2:/dev/sgc

    find-scanner: found scanner " scanner V636A4 1.00" at device /dev/sg2
    find-scanner: found scanner " scanner V636A4 1.00" at device /dev/sgc

    cat /proc/scsi/scsi
    Host: scsi0 Channel: 00 Id: 02 Lun: 00
      Vendor:          Model: scanner V636A4   Rev: 1.00
      Type:   Scanner                          ANSI SCSI revision: 02

               SCSI Adapter: Adaptec AIC-7890/1 Ultra2 SCSI host adapter
                               Ultra2-LVD/SE Wide Controller

    Scanner attributes from device structure
    ========================================

    Scanner ID...
    ~~~~~~~~~~~~~~
      Vendor Name:        '        '
      Model Name:         'scanner V636A4  '
      Revision:           '1.00'
      Model Code:         0x97 (ScanMaker 636)
      Device Type Code:   0x06 (Scanner),
      Scanner type:       Flatbed scanner
      Supported options:  Automatic document feeder: Yes
                          Transparency media adapter: Yes
                          Auto paper detecting: Yes
      Scan button:        No

    Imaging Capabilities...
    ~~~~~~~~~~~~~~~~~~~~~~~~
      Color scanner:      Yes
      Number passes:      1 pass
      Resolution:         X-max:   600 dpi
                          Y-max:  1200 dpi
      Geometry:           Geometric width:  5100 pts (8.50'')
                          Geometric height: 7020 pts (11.70'')
      Optical resol.  :   600
      Modes:              Lineart:      Yes
                          Halftone:     No
                          Gray:         Yes
                          Color:        Yes
      Depths:             Nibble Gray:  Yes
                          10-bit-color: No
                          12-bit-color: yes
      d/l of HT pattern:  No
      Builtin HT patt.:   0
      LUT capabilities:   4096 words

    Miscellaneous capabilities...
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      Data format:        Chunky data, R, G & B in one pixel
      Color Sequence:     R - G - B
      CCD gap:            8 lines
      CCD pixels:         5100
      Calib wh str loc:   -256
      Max calib space:    80
      Number of lens:     1
      Max no of windows:  64  Sh trnsf func equ:  1
      Buffer type:        Ring
      FEPROM:             No

    --
    -= Emmanuel PIERRE            ICQ: 19153556         epierre@e-nef.com =-
    http://www.e-nef.com/users/epierre                http://www.apr-job.com
               Conférence et installFest L I N U X le 14 Février
      http://www.eleves.ens.fr:8080/home/landau/Parinux/IP_14-02-1999.html
                         There is never enough freedom

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