[sane-devel] Umax Astra 1200S seen but not responding (long)

[Michael J Flaherty]

Hello all,

As the subject says, I'm having trouble with my SCSI UMAX 1200S.  It appears 
to me to be a SCSI related problem.  I don't know whether it is a result of 
the kernel or sane.   

I'm using sane 1.0x (not sure which, but the YDL distro is only a month old 
so it's pretty current) and Xsane 0.84.

(stock 2.4.18 kernel, Yellow Dog Linux 2.2 on a Power Mac 7300 w/G4 card and 
ATA  100 card, machine has 2 motherboard SCSI buses, boots from an ATA 100 
drive attached to the card, the scanner is the only device on its bus, 
connected to the external mobo 25 pin SCSI port with a 1 meter SCSI cable. )

The scanner works perfectly in Mac OS 9.1, without a terminator attached, but 
not when it is attached.  Doesn't work in Linux whether the terminator is 
attached to the scanner or not.  

Sane and Xsane both see the scanner.  However it will not scan, acquire a 
preview, or respond in any noticeable way.  Once I click the "aquire preview 
button, Xsane effectively freezes and must be killed manually with "killall 
Xsane"

I have several questions that I would very much appereciate an answer to:

Is it normal for sane-find-scanner to find my scanner "twice" (see below) ?

Once sane freezes, can I reset the SCSI bus without rebooting ?

What specific options should I try in umax.conf (or is it a SCSI problem 
whose solution lies elsewhere) ?  

I've tried changing the SCSI max queue size and the SCSI buffer max/min sizes 
without success.  I'll paste my umax.conf below in case someone wants to 
suggest changes.  Thanks.

Here's what I have before the problem arises:

[root at _no_way mike]# sane-find-scanner

# Note that sane-find-scanner will find any scanner that is connected
# to a SCSI bus.  It will even find scanners that are not supported
# at all by SANE. It won't find a scanner that is connected to a
# parallel, USB or other non-SCSI port.

sane-find-scanner: found scanner "UMAX Astra 1200S V3.1" at device /dev/sg1
sane-find-scanner: found scanner "UMAX Astra 1200S V3.1" at device /dev/sgb


[root at _no_way mike]# scanimage --list-devices

device `umax:/dev/sg1' is a UMAX     Astra 1200S      flatbed scanner

[root at _no_way mike]# cdrecord -scanbus

Cdrecord 1.10 (powerpc-unknown-linux-gnu) Copyright (C) 1995-2001 Jörg 
SchillingLinux sg driver version: 3.1.22
Using libscg version 'schily-0.5'
scsibus1:
        1,0,0   100) *
        1,1,0   101) *
        1,2,0   102) *
        1,3,0   103) 'MATSHITA' 'CD-ROM CR-8012  ' '1.0g' Removable CD-ROM
        1,4,0   104) *
        1,5,0   105) *
        1,6,0   106) *
        1,7,0   107) *
scsibus2:
        2,0,0   200) *
        2,1,0   201) *
        2,2,0   202) 'UMAX    ' 'Astra 1200S     ' 'V3.1' Scanner
        2,3,0   203) *
        2,4,0   204) *
        2,5,0   205) *
        2,6,0   206) *
        2,7,0   207) *
[root at _no_way mike]#

Here's what I have after attempting to scan, either at the command line with 
scanimage or through Xsane :

[root at _no_way mike]# cdrecord -scanbus

Cdrecord 1.10 (powerpc-unknown-linux-gnu) Copyright (C) 1995-2001 Jörg 
SchillingLinux sg driver version: 3.1.22
Using libscg version 'schily-0.5'
scsibus1:
        1,0,0   100) *
        1,1,0   101) *
        1,2,0   102) *
        1,3,0   103) 'MATSHITA' 'CD-ROM CR-8012  ' '1.0g' Removable CD-ROM
        1,4,0   104) *
        1,5,0   105) *
        1,6,0   106) *
        1,7,0   107) *
scsibus2:
        2,0,0   200) *
        2,1,0   201) *
cdrecord: No such device or address. Cannot send SCSI cmd via ioctl
        2,2,0   202) 

[root at _no_way mike]# cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 03 Lun: 00
  Vendor: MATSHITA Model: CD-ROM CR-8012   Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 02 Lun: 00
  Vendor: UMAX     Model: Astra 1200S      Rev: V3.1
  Type:   Scanner                          ANSI SCSI revision: 02


[root at _no_way mike]# scanimage --list-devices

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
[root at _no_way mike]#

This is pasted in from my Konsole.  Note that the scanner and the rest of the 
bus after it has become invisible to sane and cdrecord.  It remains so until 
the machine is rebooted.

TIA for the help,

MJF     (umax.conf below)

#
# Options for the umax backend
option scsi-maxqueue 2
option scsi-buffer-size-min 65536
option scsi-buffer-size-max 262144
#option scan-lines 100
#option preview-lines 20
#option handle-bad-sense-error 0
#option execute-request-sense 0
#option force-preview-bit-rgb 0
#option lamp-control-available 0
#
# linux device identification:
#scsi vendor model type bus channel id lun
scsi UMAX * Scanner
scsi LinoHell JADE
scsi LinoHell Office
scsi LinoHell Office2
scsi LinoHell SAPHIR2
scsi HDM LS4H1S
scsi Nikon AX-210
scsi KYE ColorPage-HR5
scsi EPSON Perfection600
scsi ESCORT "Galleria 600S"

#
# device list for non-linux-systems:
/dev/scanner