It's worse. I plugged in my Canon LiDE scanner and it shows up on lsusb:
mar@marbase:~ $ lsusb Bus 002 Device 002: ID 8087:8001 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:8009 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 008: ID 04a9:220e Canon, Inc. CanoScan N1240U/LiDE 30 Bus 003 Device 002: ID 04f9:0040 Brother Industries, Ltd Bus 003 Device 005: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 003 Device 006: ID 413c:2011 Dell Computer Corp. Multimedia Pro Keyboard Bus 003 Device 004: ID 413c:1005 Dell Computer Corp. Multimedia Pro Keyboard Hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub xsane hung after this. I unplugged the scanner and plugged the HP back in, and the Canon showed up in xsane, but of course it didn't work. I switched the cable back, and xsane hung again. So I ran sane-find-scanner: mar@marbase:~ $ sudo sane-find-scanner [sudo] password for mar: # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x04a9 [Canon], product=0x220e [CanoScan]) at libusb:003:008 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program. Now xsane can't find any scanner, so I can't scan anything. WTF? On Thu, Oct 29, 2015 at 11:12 PM, MR ZenWiz <[email protected]> wrote: > Last time I had this problem, it was on my laptop at my friend's house > with a wireless HP Envy printer. Eventually that worked when I added > the printer through CUPS. > > At home, I run Xubuntu 14.04.3 with an HP 5740 all-in-one attached on > the USB (bus 3, device 14). > > When I first installed this it was fine, everything worked. > > Tonight I tried to scan a document, and xsane can't find the > scanner/printer/etc. > > I removed it with CUPS and reinstalled - no change. > > I removed it and used the Xubuntu printer manager to install it, and > even printed a test page, and that works, and it now shows up in CUPS, > but xsane still can't find the scanner. > > Why does xsane have so much trouble locating what's there and operational? > > How does it manage to forget what used to be there (and still is)? > > (For the record, hp-setup also can't seem to find the device, even > when I tell it the USB bus and device id.). > > So what else do I need to do to get xsane to recognize this thing > again so I can use it? > > At this point I have to go back to my Canon LiDE scanner, which I like > but it has no feeder. > > This is most frustrating. I hate to say it, but Windows never has > this problem, and I'm no fan of that PoS. > > MR -- sane-devel mailing list: [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
