http://bugzilla.novell.com/show_bug.cgi?id=535752
User jsmeix@novell.com added comment
http://bugzilla.novell.com/show_bug.cgi?id=535752#c15
--- Comment #15 from Johannes Meixner 2009-09-23 06:35:51 MDT ---
FYI:
"SANE_DEBUG_DLL=4" shows debugging information only of the dll
meta-backend, see "Trouble-Shooting (Debugging)" at
http://en.opensuse.org/SDB:Configuring_Scanners_from_SUSE_LINUX_9.2
but it does not show debugging information of the
actual backend which talks to the scanner.
To get the latter, use "export SANE_DEBUG_backend=128"
(replace "backend" with the name of the respective backend)
and see "man backend" (replace "backend" with the name
of the respective backend) for possible values.
The value 128 works usually but to be on the
safe side, see your particular bakend's man page.
In this particular case "man sane-hp3900" shows:
---------------------------------------------------------------------
SANE_DEBUG_HP3900
..
Higher debug levels increase the verbosity of the output.
Example: export SANE_DEBUG_HP3900=4
---------------------------------------------------------------------
Try out if "export SANE_DEBUG_HP3900=128" works at all
and/or results more useful output or if it only results
zillions of debug messages without any real benefit
over "export SANE_DEBUG_HP3900=4".
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