If I run sand-find-scanner it finds my scanner successfully but none of the front-ends can find a scanner, what am I missing?
home$ sane-find-scanner -q found USB scanner (vendor=0x04b8 [EPSON], product=0x012c [EPSON Scanner]) at libusb:007:004 found USB scanner (vendor=0x093a, product=0x2603) at libusb:003:004 home$ home$ scanimage scanimage: no SANE devices found home$
Similarly xsane, xscanimage etc. can't find my scannner(s).