pe Ubuntu USB devices care nu mai sunt vazute

Va rog mult, am nevoie de un ajutor.

Pana acum 2 zile imi functionau pe Ubuntu cele 2  pe USB, stik si card reader extern, acum nu le le vede si imi da urmatoarea eroare :

Jun 11 01:03:04 betabase kernel: [  757.704052] usb 3-3: new full speed USB device using ohci_hcd and address 11
Jun 11 01:03:05 betabase kernel: [  758.112038] usb 3-3: device not accepting address 11, error -62
Jun 11 01:03:05 betabase kernel: [  758.248069] usb 3-3: new full speed USB device using ohci_hcd and address 12
Jun 11 01:03:05 betabase kernel: [  758.656039] usb 3-3: device not accepting address 12, error -62
Jun 11 01:03:05 betabase kernel: [  758.792587] usb 3-3: new full speed USB device using ohci_hcd and address 13
Jun 11 01:03:05 betabase kernel: [  758.932035] usb 3-3: device descriptor read/64, error -62
Jun 11 01:03:06 betabase kernel: [  759.176584] usb 3-3: device descriptor read/64, error -62
Jun 11 01:03:06 betabase kernel: [  759.416047] usb 3-3: new full speed USB device using ohci_hcd and address 14
Jun 11 01:03:06 betabase kernel: [  759.556033] usb 3-3: device descriptor read/64, error -62
Jun 11 01:03:06 betabase kernel: [  759.800556] usb 3-3: device descriptor read/64, error -62
Jun 11 01:03:06 betabase kernel: [  759.904055] hub 3-0:1.0: unable to enumerate USB device on port 3

Ma poate ajuta cineva sa repar  situatia fara a apela la reinstalare ubuntu : Ubuntu version: 9.04 Jaunty Jackalope 64 Bit version, Kernel 2.6.28-11-generic. ?