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help troubleshoot usb printer problem



I don't know how to troubleshoot a usb printer problem.
It is a hp deskjet 6122.  It used to work some time ago when I did my 
original FC2T1 install.  Now I'm up to FC2T2 but I also just did a
vanilla kernel 2.6.6 which I am now running under.
My motherboard is an Abit NF7-S which uses the nForce2 chipset.

The following is the output of dmesg pertaining to usb stuff:

usbcore: registered new driver usb-storage
USB Mass Storage support registered.
ehci_hcd 0000:00:02.2: nVidia Corporation nForce2 USB Controller
PCI: Setting latency timer of device 0000:00:02.2 to 64
ehci_hcd 0000:00:02.2: irq 5, pci mem f88b5000
ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 1
PCI: cache line size of 64 is not supported by device 0000:00:02.2
ehci_hcd 0000:00:02.2: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
ohci_hcd 0000:00:02.0: nVidia Corporation nForce2 USB Controller
PCI: Setting latency timer of device 0000:00:02.0 to 64
ohci_hcd 0000:00:02.0: irq 10, pci mem f88b7000
ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ohci_hcd 0000:00:02.1: nVidia Corporation nForce2 USB Controller (#2)
PCI: Setting latency timer of device 0000:00:02.1 to 64
ohci_hcd 0000:00:02.1: irq 11, pci mem f88b9000
ohci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 3 ports detected
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
pnp: Device 00:0e disabled.
usb 2-1: new full speed USB device using address 2
usb 2-1: device not accepting address 2, error -110
hdc: ATAPI 40X DVD-ROM DVD-R CD-R/RW CD-MRW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
usb 2-1: new full speed USB device using address 3
usb 2-1: device not accepting address 3, error -110
usb 2-2: new full speed USB device using address 4
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x03F0 pid 0x3404
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
ip_tables: (C) 2000-2002 Netfilter core team
ip_tables: (C) 2000-2002 Netfilter core team
pnp: Device 00:0e activated.
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
lp0: using parport0 (interrupt-driven).
lp0: console ready

The Print Manager says that:
Unable to open USB device "usb:/dev/usb/lp0": No such device

If I use the Hardware Browser app and look at USB devices, I get 3
occurrences of nForce USB Controller. The first two say they are
using the ohci-hcd driver and the third says it is using the 
ehci-hcd driver.

The output of lspci gives:
0000:00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
0000:00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
0000:00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)

Beyond that, I don't know what else to look for or what tools or methods may
be available for troubleshooting problems like this.

Thanks for any help,
Doug

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