I moved a working scanner (a 3-pass, 300-dpi, 24-bit Microtek Scanmaker
III) from an antique Mac to my machine. It's SCSI ID 6, with this as the
card:
0000:00:0d.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U (rev 01)
xsane doesn't admit it's there. It says:
+----------------------+
| no devices available |
| |
| [Help] [Close] |
+----------------------+
If I press "Help", I get another dialog:
+--------------------------------------------------------------------------+
| no devices available |
| |
| Possible reasons: |
| 1) There really is no device supported by SANE |
| 2) Supported devices are busy |
| 3) The permissions for the device file do not allow you to use it -- try |
| as root |
| 4) The backend is not loaded by SANE (man sane-dll) |
| 5) The backend is not configured correct (man sane-"backendname") |
| 6) Possibly there is more than one SANE version installed |
| |
| [ C l o s e ] |
+--------------------------------------------------------------------------+
So. #1 is reasonable, as it's an old semi-obscure scanner. I might not
have the SCSI card configured correctly either. How do I tell?
#2, no.
#3 is probable, but their suggested workaround gives a GTK error:
(xsane:12337): Gtk-WARNING **: cannot open display:
The permissions on /dev/sg* needed to be changed; they were root/root 0600.
I changed them manually to root/eben 0660, but next time I reboot, that's
gone. I forget the file I need to change to make that stick. Anyone?
#4, "microtek" and "microtek2" are listed in /etc/sane.d/dll.conf. The
scanner was on when the machine was booted. What else do I have to do?
#5, heck if I know. I'm not even sure what backend to use.
#6, unlikely. I only installed once, using synaptic.
I ran
strace xsane 2>&1 | grep open | grep '= -' | grep -v ENOENT | less -S
(basically, show me all erroring OS calls where the error was NOT "file not
found")
and it showed permission errors on /proc/bus/usb/*/*, /dev/parport*,
/dev/port, and /dev/lp0, but nothing related to SCSI. From this I deduce
that it successfully scanned SCSI but didn't find anything it could support.
Is my logic correct? How can I see what it found? (There should be two
things out there.) Where do I get a list of supported scanners?
-- A well-loved and correctly trained domestic canine is generally slobbery, excitable, noisy, scatalogically obsessed, xenophobic, pathetically unjudgmental, embarrassingly uninhibited, unreasoningly devoted, heartbreakingly dependent and wretchedly craven. - PB, AFCA ----------------------------------------------------------------------- This list is provided as an unmoderated internet service by Networked Knowledge Systems (NKS). Views and opinions expressed in messages posted are those of the author and do not necessarily reflect the official policy or position of NKS or any of its employees.
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