I have the same problem, with A and B firmware of 1.11 on the D40.
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 3
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 4
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 5
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 6
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:53:12 hardhat sudo: pam_unix2(sudo:auth): conversation failed
Aug 6 22:53:12 hardhat sudo: bryce : pam_authenticate: Conversation error ; TTY=pts/2 ; PWD=/home/bryce ; USER=root ; COMMAND=/opt/kde3/bin/kdesu_stub -
Aug 6 22:53:43 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 7
Aug 6 22:53:43 hardhat kernel: usb 4-1: new device found, idVendor=04b0, idProduct=0413
Aug 6 22:53:43 hardhat kernel: usb 4-1: new device strings: Mfr=1, Product=2, SerialNumber=3
Aug 6 22:53:43 hardhat kernel: usb 4-1: Product: NIKON DSC D40
Aug 6 22:53:43 hardhat kernel: usb 4-1: Manufacturer: NIKON
Aug 6 22:53:43 hardhat kernel: usb 4-1: SerialNumber: 3527869
Aug 6 22:53:43 hardhat kernel: usb 4-1: configuration #1 chosen from 1 choice
I have the same problem, with A and B firmware of 1.11 on the D40.
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 3 sudo:auth) : conversation failed /opt/kde3/ bin/kdesu_ stub -
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 4
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 5
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:51:38 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 6
Aug 6 22:51:38 hardhat kernel: usb 4-1: unable to read config index 0 descriptor/all
Aug 6 22:51:38 hardhat kernel: usb 4-1: can't read configurations, error -71
Aug 6 22:53:12 hardhat sudo: pam_unix2(
Aug 6 22:53:12 hardhat sudo: bryce : pam_authenticate: Conversation error ; TTY=pts/2 ; PWD=/home/bryce ; USER=root ; COMMAND=
Aug 6 22:53:43 hardhat kernel: usb 4-1: new high speed USB device using ehci_hcd and address 7
Aug 6 22:53:43 hardhat kernel: usb 4-1: new device found, idVendor=04b0, idProduct=0413
Aug 6 22:53:43 hardhat kernel: usb 4-1: new device strings: Mfr=1, Product=2, SerialNumber=3
Aug 6 22:53:43 hardhat kernel: usb 4-1: Product: NIKON DSC D40
Aug 6 22:53:43 hardhat kernel: usb 4-1: Manufacturer: NIKON
Aug 6 22:53:43 hardhat kernel: usb 4-1: SerialNumber: 3527869
Aug 6 22:53:43 hardhat kernel: usb 4-1: configuration #1 chosen from 1 choice