Hi guys, Here are the logs for the 32 bits system that works fine (to compare with 64 bits that fails) And btw could it be a hardware issue of Thinkpad USB?
$ scanimage -L device `gt68xx:libusb:002:003' is a Mustek ScanExpress 1200 UB Plus flatbed scanner $ SANE_DEBUG_GT68XX=255 scanimage --device-name gt68xx:libusb:002:003 --resolution 300 --format tiff > image.tiff >>>http://pastebin.com/NFSuGZh9<<< Thanks!