It's more or less reproducible: if I start a new (root) shell session, the first 'scanimage -L' is successful (debug output "scanimage-1.log" attached); all subsequent 'scanimage -L' fail (debug output "scanimage-2.log" attached).
Do you think switching to the 32-bit version would help? Giorgio -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: scanimage-1.log URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20120425/0e2d8c95/attachment-0002.ksh> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: scanimage-2.log URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20120425/0e2d8c95/attachment-0003.ksh> -------------- next part -------------- > From: Olaf Meeuwissen <olaf.meeuwissen at avasys.jp> > Date: Wed, 25 Apr 2012 08:37:28 +0900 > > "Giorgio F. Signorini" <giorgio.signorini at unifi.it> writes: > > > I'm confused ... after commenting out the 'epson' line in dll.conf and > > everything but the 'usb 0x04b8 0x0820' line in epson2.conf I got > > > > # scanimage -L > > device `epson2:libusb:002:003' is a Epson CX4200 flatbed scanner > > Never mind the CX4200 bit. The DX4200 and DX4250 all have the same USB > product ID and can be considered one and the same thing. > > > Unfortunately, typing 'scanimage -L' again resulted in 'No scanners > > were identified'; the same ever after. > > Weird. Can you provide a log? > > # SANE_DEBUG_DLL=127 SANE_DEBUG_EPSON2=127 scanimage -L > > might be able to shed some light on this. > > BTW, you're doing all these tests with administrative privileges > (i.e. using `sudo` or as root), right? > > Hope this helps, > -- > Olaf Meeuwissen, LPIC-2 FLOSS Engineer -- AVASYS CORPORATION > FSF Associate Member #1962 Help support software freedom > http://www.fsf.org/jf?referrer=1962