curiosamente..... ha ricominciato a funzionare da solo.
non mi resta che associarlo ad un bug in un kernel corretto da qualche aggiornamento?
allego il log della connessione alla porta dove prima non funzionava, nel caso in futuro qualcuno aprisse la discussione per un problema simile.
L'output di lsusb -v supera il numero di caratteri consentiti in un messaggio del forum
Codice: Seleziona tutto
[17684.745387] usb 2-1.6: new high-speed USB device number 6 using ehci-pci
[17684.839331] usb 2-1.6: New USB device found, idVendor=04a9, idProduct=10d3
[17684.839335] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[17684.839337] usb 2-1.6: Product: iP2700 series
[17684.839339] usb 2-1.6: Manufacturer: Canon
[17684.839341] usb 2-1.6: SerialNumber: 48B8A5
[17684.841996] usblp 2-1.6:1.0: usblp2: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
[17689.941157] usblp2: removed
[17689.944282] usblp 2-1.6:1.0: usblp2: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
[17820.988777] usb 2-1.6: USB disconnect, device number 6
[17820.989023] usblp2: removed
[17825.595392] usb 1-1.2: USB disconnect, device number 4
[17831.938179] usb 1-1.2: new high-speed USB device number 6 using ehci-pci
[17832.032375] usb 1-1.2: New USB device found, idVendor=04a9, idProduct=10d3
[17832.032381] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[17832.032384] usb 1-1.2: Product: iP2700 series
[17832.032387] usb 1-1.2: Manufacturer: Canon
[17832.032390] usb 1-1.2: SerialNumber: 48B8A5
[17832.035272] usblp 1-1.2:1.0: usblp2: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
[17837.162970] usblp2: removed
[17837.166214] usblp 1-1.2:1.0: usblp2: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
[17911.607374] usb 1-1.2: USB disconnect, device number 6
[17911.607532] usblp2: removed
[17914.365338] usb 1-1.2: new high-speed USB device number 7 using ehci-pci
[17914.459355] usb 1-1.2: New USB device found, idVendor=04a9, idProduct=10d3
[17914.459360] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[17914.459363] usb 1-1.2: Product: iP2700 series
[17914.459366] usb 1-1.2: Manufacturer: Canon
[17914.459369] usb 1-1.2: SerialNumber: 48B8A5
[17914.462415] usblp 1-1.2:1.0: usblp2: USB Bidirectional printer dev 7 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
[17919.572543] usblp2: removed
[17919.576192] usblp 1-1.2:1.0: usblp2: USB Bidirectional printer dev 7 if 0 alt 0 proto 2 vid 0x04A9 pid 0x10D3
Non credo sia utile mettere [RISOLTO] in quanto non c'e' una soluzione che permetta di risolvere il problema se si presenta ad altri utenti.