Hi, I'm running Ubuntu 18.04 and I just bought a Canon LiDE 300 scanner. I tried getting it to work with the sane packages from Ubuntu, but they were pretty old, so I grabbed the source and built it. With the latest I get a little further, but I still get the same error when I try to scan. I installed the Canon program and it works fine. I noticed they installed some udev rules in /etc/udev/rules.d. My make install put the sane rules in /lib/udev/rules.d. I tried removing the canon rules and running: sudo udevadm control --reload-rules && udevadm trigger
But the results are the same. Here are various commands I've tried: % sane-find-scanner -q found USB scanner (vendor=0x04a9 [Canon], product=0x1913 [LiDE 300]) at libusb:003:032 found USB scanner (vendor=0x0e8d, product=0x000e) at libusb:003:022 % scanimage -V scanimage (sane-backends) 1.0.27git; backend version 1.0.27 % scanimage -L #this failed until I installed the latest device `pixma:04A91913_40A0B5' is a CANON CanoScan LiDE 300 multi-function peripheral % scanimage > out scanimage: open of device pixma:04A91913_40A0B5 failed: Invalid argument Any suggestions appreciated. -- Chris Bare
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