USB-Gerät in Ubuntu 12.10 nicht erkannt

Ich habe Ubuntu12.10 installiert. Keiner meiner USB-Anschlüsse erkennt jedoch ein USB-Gerät. Das gleiche USB wird jedoch in Windows-Betriebssystemen erkannt. Wie erkennt man ein USB-Gerät in meinem Ubuntu-System?

Ausgabe von lspci:

00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0e) 00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0e) 00:13.0 SATA controller: Intel Corporation ValleyView 6-Port SATA AHCI Controller (rev 0e) 00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0e) 00:1b.0 Audio device: Intel Corporation ValleyView High Definition Audio Controller (rev 0e) 00:1c.0 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e) 00:1c.1 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e) 00:1c.3 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e) 00:1d.0 USB controller: Intel Corporation ValleyView USB Enhanced Host Controller (rev 0e) 00:1f.0 ISA bridge: Intel Corporation ValleyView Power Control Unit (rev 0e) 00:1f.3 SMBus: Intel Corporation ValleyView SMBus Controller (rev 0e) 02:00.0 Network controller: Atheros Communications Inc. AR9565 Wireless Network Adapter (rev 01) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5286 (rev 01) 03:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 06) 

O / p von lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

O / p von lsmod:

Module Size Used by usb_storage 39350 0  i915 457161 0  drm_kms_helper 45271 1 i915 drm 230463 2 i915,drm_kms_helper i2c_algo_bit 13197 1 i915 bnep 17707 2  rfcomm 37276 0  parport_pc 31968 0  ppdev 12817 0  bluetooth 183228 10 bnep,rfcomm snd_hda_codec_realtek 63356 1  snd_hda_intel 32515 3  snd_hda_codec 111547 2 snd_hda_codec_realtek,snd_hda_intel snd_hwdep 13272 1 snd_hda_codec snd_pcm 80163 2 snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0  snd_rawmidi 25382 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi asus_nb_wmi 12622 0  coretemp 13168 0  snd_seq 51255 2 snd_seq_midi,snd_seq_midi_event asus_wmi 19320 1 asus_nb_wmi sparse_keymap 13658 1 asus_wmi snd_timer 24411 2 snd_pcm,snd_seq kvm_intel 126745 0  snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq psmouse 84843 0  kvm 357806 1 kvm_intel serio_raw 13031 0  mac_hid 13037 0  microcode 18209 0  snd 61991 15 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device wmi 18590 1 asus_wmi soundcore 14599 1 snd snd_page_alloc 14036 2 snd_hda_intel,snd_pcm video 18847 1 i915 lp 13299 0  parport 40753 3 parport_pc,ppdev,lp r8169 55976 0 

Mein Flash-Laufwerk ist ein 8-GB-USB-Flash-Laufwerk.