# Re: mustek problems in lineart mode

Michael Ritzert (Ritzert@t-online.de)
Sun, 07 Sep 1997 15:55:28 +0200 (CEST)

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Hi David!

On 06-Sep-97 David Mosberger-Tang wrote:
>>>>>> On Wed, 03 Sep 1997 15:38:31 +0200 (CEST), Ritzert@t-online.de (Michael
>Ritzert) said:
>
> Michael> This doesn't always work. The scanner simply stops in the
> Michael> middle of the page and scanimage seems to hang. Using
> Michael> xscanimage the problem is the same. Other modes than
> Michael> lineart work fine. I've not yet find out under which
> Michael> circumstances (ca. 10%) the scan works.
>
>This sounds very much like a probelm with your low-level SCSI driver.
>E.g., if the timeout values are set too small, you might see the
>problems you're reporting. See sane-scsi(5) for more details.

This might indeed be the problem. Setting the "option strip-height" or using a
higher resolution, everything works fine.
At the moment I solved the problem by setting strip-height 3, which makes
lineart mode work, but slows down the other modes and the preview.

I've already tried to set a longer timeout in the low level SCSI driver
(aha1542), but I've not yet found the setting. There are a lot of "wait times"
set, but no timeout. Does anybody happen to know what to change?
I don't want to try out the settings one after the other, as after each try that
failed, I have to reboot the computer...

Ciao, Michael

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