I installed sane on my Gentoo box to setup a scan server, but I am experiencing the same problems as some others. XSane and scanimage both detect the scanner, but they crash when trying to preview or scan.
uname -a Linux wopr 2.6.23-gentoo-r3 #4 SMP Fri Dec 28 20:36:48 PST 2007 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux sane-backends-1.0.19-r2 (see http://gentoo-portage.com/media-gfx/sane-backends/ChangeLog) scanimage --help: Model: scanjet 7400c Firmware: 0.8S Manufacturing date: 65535-0-0 First scan date: 32896-0-0 Flatbed scans: 8 Pad scans: 33685504 ADF simplex scans: 213712896] List of available devices: avision:libusb:004:004 NOTE: The firmware version is 0.8S after using the scanner in Windows, but after a power cycle, the firmware goes back to version 0.8A. # export SANE_DEBUG_AVISION=7 # scanimage -l 5mm -t 5mm -x 15mm -y 15mm 2> scanner-name.log > scanner-name.png kern.log: Mar 26 09:15:15 wopr scanimage[13586]: segfault at 08074000 eip b7f98774 esp bf889920 error 4 Log File: https://sites.google.com/a/systemdesignworks.com/test/Home/scanner-hp7450c.log When I uncommented the line "option disable-calibration" in avision.conf, then it doesn't segfault, and I got this log: https://sites.google.com/a/systemdesignworks.com/test/Home/scanner-hp7450c-disable-calibration.log It actually scanned one time, but it still has problems. For example in XSane, the preview scan gives a black image and I get time out errors, and long pauses. Here are another two logs of my attempts: https://sites.google.com/a/systemdesignworks.com/test/Home/scanner-hp7450c-afterapowercycle.log https://sites.google.com/a/systemdesignworks.com/test/Home/scanner-hp7450c-afterusingonWindows.log Here are reports of similar symptoms on HP scanners with the Avision backend: xsane and scanimage crashes: http://lists.alioth.debian.org/pipermail/sane-devel/2009-March/024182.html http://lists.alioth.debian.org/pipermail/sane-devel/2009-March/024187.html Segmentation Fault http://lists.alioth.debian.org/pipermail/sane-devel/2009-March/024147.html Thanks, Wayne
