[sane-devel] issues with libm and SANE??

[paul beard]

Henning Meier-Geinitz wrote:

> Hi,
> 

<snip>


> I don't know. I have never seen similar things on any platform
> (including NetBSD). As this isn't the only problem you observed with
> SANE: Are you really sure that there aren't some major problems with
> you installation of NetBSD?


well, pretty sure, yes. There may be some hardware issues, from 
what Abel has been able to determine. The libm issue was a bad 
symlink from libc, rather than the real math library. No idea how 
that happened . . . .

Right now, I am finding that accessing the scanner is 
intermittent: for some reason, the bus is getting reset while 
commands are being sent to the scanner. When I have gotten xsane 
or xscanimage working, I have not been able to acquire an image, 
even as a preview, so this is going quite slowly.


from an email Abel sent:

> So it seems that there are a few issues with the SCSI system of your
> machine. 
> 
> A more general SCSI question: (I assume that the folks who adapted
> NetBSD to the Apple hardware know this, but let us be sure ;) The reason
> that Apple installs two SCSI busses in many of their computers is to
> have a fast internal bus for the hard disks; this bus needs the usual
> careful setup: proper cabling and termination; for the external bus
> Apple managed to design the interface in an amazing "error-friendly"
> way. I have seen several absolutely wrong setups working flawlessly,
> like a 1.5 m cable at the end of the bus without a device and without a
> terminator. This can only work for slow transfer speeds, so I wonder if
> the NetBSD kernel really ensures that the speed of the external bus is
> really 5 MHz. Do you see anything related messages with dmesg or in some
> log files?



right now the scanner doesn't show up at all: I just added a 
terminator (it supposedly has active termination internally, but I 
thought I would see what difference this made).