[sane-devel] Re: sane-devel digest, Vol 1 #806 - 7 msgs

[Nightwulf]

Hi,

Am Montag 20 Juni 2005 09:23 schrieb 
sane-devel-request@lists.alioth.debian.org:

> 	If I understand correctly, you meet 2 issues:
>
> 	- 16 bits scanning gives "noise" picture.
well, that depends on which color depth xsane uses but read below.

> 	- every second scan stalls
I now know the reason for that one. It only happens if I use the standard size 
settings in xscanimage and xsane since they are approx 0,5 cm too large. If I 
reduce the settings to A4 size it works perfect without any problems. I guess 
the lights get stuck whenever they have to travel that half centimeter too 
far out. 
Would be fine of course if the backend would take care of that and prevent it 
from happening.

> I'm wondering if data is swap. Could you post a small scan in a lossless
> format such as pnm for instance ? I have read the logs you have posted.
> Is lacks an export SANE_DEBUG_GENESYS_GL646=255, so low-level
> information is lacking. It would be great (if I'm not abusing your time too
> much) if you could post the log of 2 previews in a single xsane session.
> The second preview should stall. For the 16 bit issue, the pnm
> of a small area of text would be great.
Now it perhaps gets strange. I never did scans with xsane before, only with 
scanimage, xscanimage and kooka. But since you demanded xsane, I installed it 
and guess what.....with xsane I didn't encounter the distorted pic problem at 
600. But since I didn't find a depth setting, I don't know wether it is 8 or 
16 bits or whatever.
Despite of the fact it works with xsane, I did previews and scans with both, 
xsane and xscanimage with the logging you wanted. When scanning with 
xscanimage the distorted pic problem occured again, I added that pic too (it 
was some text).
You can find all that in a tar.gz at the following URL:
http://www.night-wulf.de/testmaterial.tar.gz

I hope I didn't forget some of those debug variables this time :)

If you need further help, just ask. I'll do whatever helps you in making this 
working perfectly.

Greets,
Torsten