I was running my Nikon Coolscan II (LS20) very happily under SANE 0.74
and Slackware 3.4 (kernel 2.0.36) until recently. Due to a hard disk
crash, I had to reinstall everything, and took the opportunity to
upgrade to RedHat 6.0 (kernel 2.2.5-15) which provides SANE 1.0.1.
Suddenly, my Coolscan no longer works. Here are the symptoms:
xscanimage starts fine, and I can take a preview of the slide okay.
However, when I click for a full scan, the scanner makes a horrible
rattling noise (immediately) and the machine freezes completely. The
scanner light continues to blink, which usually indicates an error
condition. It looks like a SCSI hang to me - the hard reset button is
the only way to recover.
Is this likely to be caused by the new SCSI generic (sg) driver? (But
I thought pre-2.2.6 kernels still used the old driver?) Or is it
related to the autofocus problem that people have been reporting with
the newer Coolscan driver for the LS30? (As far as I know, I don't
have those updates, but perhaps I'm mistaken?) Any other ideas?
I tried checking and unchecking the "prescan" radiobutton, but the
behaviour was the same either way.
By the way, I'm using the Adaptec AVA1505I card which came with the
Coolscan, and I recompiled the kernel to include the aha152x driver
(i.e. not as a module), with the correct settings (port=0x340, irq=10)
hard-coded in.
Regards,
Malcolm
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