Confirm this on Kubuntu 11.10. Tried to set usb autosuspend as per https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/85488/comments/459 But no luck.
lsusb and sane-find-scanner seem to find the scanner, and sometimes scanimage -L succeeds too. $ sane-find-scanner [...] found USB scanner (vendor=0x04a9 [Canon], product=0x220e [CanoScan], chip=LM9832/3) at libusb:005:003 [...] $ scanimage -L device `plustek:libusb:005:003' is a Canon CanoScan N1240U/LiDE30 flatbed scanner $ scanimage scanimage: no SANE devices found $ uname -a Linux linus 3.0.0-16-generic #29-Ubuntu SMP Tue Feb 14 12:49:42 UTC 2012 i686 i686 i386 GNU/Linux $ lsusb Bus 005 Device 003: ID 04a9:220e Canon, Inc. CanoScan N1240U/LiDE 30 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/83957 Title: Cracking noise on Canon lide30, possibility for hardware failure To manage notifications about this bug go to: https://bugs.launchpad.net/sane-backends/+bug/83957/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
