# Re: UMAX Astra 1200s scanning problems.

Oliver Rauch (oliver.rauch@Wolfsburg.DE)
Wed, 20 Jan 1999 17:26:32 +0100

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Bill Thorson wrote:

> I just connected my scanner to my Linux machine and have some problems.
> Here is some configuration info:
>
> dmesg reports --
> scsi0 : AdvanSys SCSI 3.1D: PCI Ultra 16 CDB: IO B800/F, IRQ 9
> scsi : 1 host.
> Vendor: UMAX Model: Astra 1200S Rev: V2.6
> Type: Scanner ANSI SCSI revision: 02
> Detected scsi generic sga at scsi0, channel 0, id 5, lun 0
> scsi : detected total.
>
> scanimage/xscanimage seems to have some trouble with scanning. It seems
> to know know how to operate the scanner just fine but has problem with
> timing or waiting and therefore messes up the images/previews.
>
> I set SANE_DEBUG_UMAX=8 and did some testing. As soon as it communicated
> with the scanner it started listing messaged like it was receiving buffers
> of the image even though the scanner had not even started scanning yet.
> Then when it did actually start scanning the software thought most of the
> image was there. The image I end up with has garbage at the top and the
> image at the bottom somewhat cut off.
>
> For the preview image it loaded something in the window before the scanner
> even started scanning.
>
> Any ideas? I have included some debug messages below but they really
> don't show the problem.
>
> Bill

Hi Bill,

the problem is known with some scsi-controlls/drivers.
I don`t have a solution for this. If you have another scsi-controller
try that one or try to find an other driver for your scsi-card.

Bye
Oliver

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