Hi,
On Thu, May 10, 2001 at 07:50:35PM -0400, Rupert Heesom wrote:
> I have a scsi scanner: Umax Astra 1220S. I had RPMs of xsane & sane
> installed from the Ximian Gnome 1.4 RPM set. I suddenly found that I
> could no longer get previews when I was using xsane. According to my
> syslog, when I loaded xsane, modprobe was looking for "char-major-81"
> which it couldn't find. The scanner was then taken offline until I
> rebooted the PC.
>
> I found however that after a reboot, I could load xsane and do a
> straight scan OK (bypassing preview).
>
> I looked at the kernel source (I'm running 2.4.3) documentation for
> "char-major-81" and was not convinced that my problem lay directly with
> that error (Video4Linux!?).
SANE can use Video4Linux devices. To be sure that there won't be any
problem with v4l you can disable it in /usr/etc/sane.d/dll.conf (or
wherever your Distribution puts this file).
> It may have been around the time of my kernel change from the RH7
> default of 2.2.16-22 to the stock kernel of 2.4.3 (because I wanted the
> LVM facility in the 2.4 kernel). I read something about scanning being
> messed up when changing kernels because a setting SG_BIG_BUFF is reset
> to a smaller value than before the kernel change which affects the
> memory that sane thinks it has. 2 paths were mentioned:
I don't think that that's the problem. Look at the SANE FAQ
(http://www.xs4all.nl/~ljm/SANE-faq.html#65) for a solution of the
Linux 2.4 timeout problem.
> If I try to run xscanimage with the Debugging level set to 4 ....
>
> [rupert@localhost rupert]$xscanimage
> [sanei_debug] Setting debug level of xscanimage to 4.
> [xscanimage] xscanimage (version: 1.0.4, package: sane-frontends)
> starting
> [xscanimage] No scanners were identified. If you were expecting
> something
> different, check that the scanner is plugged in, turned on and
> detected by the find-scanner tool (if appropriate). Please
> read
> the documentation which came with this software (README, FAQ,
> manpages).
> [xscanimage] xscanimage exiting.
>
> ...... it doesn't tell me much, except what I already know.
Set the debug level of your backend, not the debug level of xscanimage.
Bye,
Henning
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