Hi, On Wednesday 03 August 2005 14:43, Jeronimo Pellegrini wrote: > Hello. > > I'm trying to setup a CanoScan Lide20 and I'm having problems. > Maybe someone can tell me what I'm doing wrong?
probably nothing, from the logs we see, it's a problem of the USB subsystem. Where is the scanner connected to? Do you use any usb-hubs? Power problems? The device in fact is a USB1.1 device... Ciao, Gerhard > > The box is an Athlon running on an Asus A7V8X-X motherboard, and > I'm running Debian sid. > > I have sane, sane-utils, xsane, hotplug, libusb-0.1-4, all installed. > > > $ cat /etc/sane.d/dll.conf > plustek > > In /etc/sane.d/plustek.conf, I have (besides the other options, which I did > not touch): > [usb] 0x04a9 0x220d > device auto > > I also tried removing the vendor and product IDs, but that made no difference. > > > So, if I connect the scanner, my kernel.log says it's been detected: > > Aug 3 09:23:45 socrates kernel: hub 4-0:1.0: state 5 ports 6 chg 0000 evt > 0040 > Aug 3 09:23:45 socrates kernel: ehci_hcd 0000:00:10.3: GetStatus port 6 > status 001803 POWER sig=j CSC CONNECT > Aug 3 09:23:45 socrates kernel: hub 4-0:1.0: port 6, status 0501, change > 0001, 480 Mb/s > Aug 3 09:23:45 socrates kernel: hub 4-0:1.0: debounce: port 6: total 100ms > stable 100ms status 0x501 > Aug 3 09:23:45 socrates kernel: ehci_hcd 0000:00:10.3: port 6 full speed --> > companion > Aug 3 09:23:45 socrates kernel: ehci_hcd 0000:00:10.3: GetStatus port 6 > status 003801 POWER OWNER sig=j CONNECT > Aug 3 09:23:45 socrates kernel: hub 4-0:1.0: port_wait_reset: err = -107 > Aug 3 09:23:45 socrates kernel: uhci_hcd 0000:00:10.2: wakeup_hc > Aug 3 09:23:45 socrates kernel: hub 3-0:1.0: state 5 ports 2 chg 0000 evt > 0004 > Aug 3 09:23:45 socrates kernel: uhci_hcd 0000:00:10.2: port 2 portsc 0093,00 > Aug 3 09:23:45 socrates kernel: hub 3-0:1.0: port 2, status 0101, change > 0001, 12 Mb/s > Aug 3 09:23:45 socrates kernel: hub 3-0:1.0: debounce: port 2: total 100ms > stable 100ms status 0x101 > Aug 3 09:23:45 socrates kernel: usb 3-2: new full speed USB device using > uhci_hcd and address 4 > Aug 3 09:23:46 socrates kernel: usb 3-2: ep0 maxpacket = 8 > Aug 3 09:23:46 socrates kernel: usb 3-2: default language 0x0409 > Aug 3 09:23:46 socrates kernel: usb 3-2: new device strings: Mfr=1, > Product=2, SerialNumber=0 > Aug 3 09:23:46 socrates kernel: usb 3-2: Product: CanoScan > Aug 3 09:23:46 socrates kernel: usb 3-2: Manufacturer: Canon > Aug 3 09:23:46 socrates kernel: usb 3-2: hotplug > Aug 3 09:23:46 socrates kernel: usb 3-2: adding 3-2:1.0 (config #1, > interface 0) > Aug 3 09:23:46 socrates kernel: usb 3-2:1.0: hotplug > Aug 3 09:23:46 socrates kernel: usbserial_generic 3-2:1.0: > usb_probe_interface > Aug 3 09:23:46 socrates kernel: usbserial_generic 3-2:1.0: > usb_probe_interface - got id > > > Now if either root or my user (who is in the scanner group) runs > sane-find-scanner, > everything seems to be OK: > > > socrates ~ 0 :: sane-find-scanner > > # 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 SCSI driver for your SCSI adapter. > > found USB scanner (vendor=0x04a9 [Canon], product=0x220d [CanoScan], > chip=LM9832/3) at libusb:003:004 > # 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. > > > But "scanimage -L" doesn't always work. This time it worked: > > socrates ~ 0 :: scanimage -L > device `plustek:libusb:003:004' is a Canon N670U/N676U/LiDE20 USB flatbed > scanner > > > However, if I try to preview or scan, it only sometimes works, but most of > the time > it fails with "Error during read: Error during device I/O". > > I tried this with Debian's 2.6.8-2-k7 kernel, and the logs did show this: > > Aug 3 01:01:26 socrates kernel: usb 3-2: control timeout on ep0out > > > Then I tried with my own 2.6.12.3 kernel (pristine, from kernel.org), and got > this: > > Aug 3 09:28:48 socrates kernel: uhci_hcd 0000:00:10.2: uhci_result_control: > failed with status 440000 > Aug 3 09:28:48 socrates kernel: [f7707240] link (377071e2) element > (28e0d000) > Aug 3 09:28:48 socrates kernel: 0: [e8e0d000] link (28e0d040) e0 Stalled > CRC/Timeo Length=7 MaxLen=7 DT0 EndPt=0 Dev=4, PID=2d(SETUP) (buf=350511a0) > Aug 3 09:28:48 socrates kernel: 1: [e8e0d040] link (00000001) e3 IOC Active > Length=0 MaxLen=7ff DT1 EndPt=0 Dev=4, PID=69(IN) (buf=00000000) > Aug 3 09:28:48 socrates kernel: > > > After the first failure, all frontends complain either that no scanner has > been found, or > that there was the same I/O error. Usually, I can only use the scanner once, > and then I have > to disconnect/reconnect the USB cable or reboot so I'll be able to use it > again -- and sometimes > not even re-plugging the cable helps. > (For example, if I preview an image, I can't scan it). After the failure, > scanimage -L does > not find a scanner anymore. > > I don't know if this is relevant, but the scanner is being used as a USB1.1 > device (should it be 2.0?) > I checked this using usbview. > > So... Does anyone know what may be happening? Is there any other information > I should send? > > Thanks a lot! > J. > >
