[sane-devel] mp780 working, but very slowly
tpo_deb at sourcepole.ch
Wed Dec 22 09:15:41 UTC 2010
Hello List, Nicolas, Gernot,
this is a report from peter pilsl about whether current sane with
Nicolas suggested patch here:
works with mp780.
I asked Peter and he replied in German. I translated the reply (modulo
not important stuff) to English. Here it is:
Date: Mon, 20 Dec 2010 11:40:29 +0100 (CET)
From: peter pilsl
To: Tomáš Pospíšek
Subject: Re: test mp780?
finaly I found time for testing :)
* it [sane-backend with patch] works !!! I could do a preview and scan.
Both from flatbed. If you need an ADF-Test, then tell me...
* it's unbelievably slow !!! scanning a ~4cm x 5cm photo in 600DPI takes
1 minute 35 seconds. with the old official [Ubuntu] libsane it takes
less than 15 seconds. That's 7x as slow. That's not good.
To compare I started xsane with your libsane, scanned, closed xsane, did
apt-get --reinstall install libsane and repeated the scan without
changing a single configuration setting.
A full preview changed from 3 to 5 seconds.
Please let me know if you need more. I'll be at the scanner this week and
then again in January.
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