Am Sonntag, den 03.01.2021, 18:30 +0100 schrieb Simon Matter: > > Hi > > > > I've got a new flatbed scanner, a Canon CanoScan Lide 300. I had a Canon > > CanoScan Lide 220 before, which worked mostly fine. But then the lamp > > broke. > > Both are listed as "completely" supported on the SANE devices page. But > > that > > Lide 300 doesn't work. > > > > I'm using Ubuntu 20.04.1 with SANE version 1.0.14-15 (that's the version > > of > > the "sane" package). > > > > "xsane" says: > > Failed to open device 'pixma::04A91913': Device busy" > > > > "simple-scan" first asks for which scanner to use. It provides a list with > > one element, which is the correctly recognized CanoScan Lide 300. When > > trying to scan, this message appears: "Failed to scan. Unable to connect > > to > > scanner" > > > > "scanimage -L" says: > > device `pixma:04A91913' is a CANON CanoScan LiDE 300 multi-function > > peripheral > > > > I'm wondering why the Lide 300 is listed as a "multi-function peripheral". > > It's not multi-function. It's just a flatbed scanner. Maybe those buttons > > at the scanner are meant (?). > > > > "scanimage --device=pixma > image.pnm" says: > > scanimage: open of device pixma failed: Device busy > > > > "lsusb" says: > > Bus 006 Device 002: ID 1058:25ed Western Digital Technologies, Inc. My > > Book 25ED > > Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > > Bus 005 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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 002 Device 002: ID 05e3:0612 Genesys Logic, Inc. Hub > > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > > Bus 001 Device 003: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 > > Optical USB Mouse] > > Bus 001 Device 004: ID 04f2:0402 Chicony Electronics Co., Ltd Genius > > LuxeMate i200 Keyboard > > Bus 001 Device 008: ID 04a9:1913 Canon, Inc. USB2.0 Hub > > Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > > > The Lide 220 and the Lide 300 use different backends. For the 220 it's > > "genesys", for the 300 it's "pixma". > > > > I've also found a "driver" from Canon for the Lide 300. But it's *not* a > > SANE backend, and it doesn't work either. > > > I don't see the scanner in the lsusb output?
I think it's the "Canon, Inc. USB2.0 Hub" line. But it's strange - why does it report a hub and not a scanner? > Is the scanner connected to an USB3 port? If so, could you test it on a > USB2 port? I've tried both. It's the same. Regards, Volker
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