This could be an upstream issue, had similar problems when testing the above mentioned 3.4 kernel. Method of reproducing: * plug USB bluetooth stick * pair wiimote * unplug USB bluetooth stick * replug USB bluetooth stick The actual problem (getting wiimote to work) is fixed though. Sep 11 13:44:44 hp4530s kernel: [ 819.512448] wiimote 0005:057E:0306.0007: hidraw3: BLUETOOTH HID v3a.1c Gamepad [Nintendo RVL-CNT-01] on 00:15:83:C7:39:BC Sep 11 13:44:44 hp4530s kernel: [ 819.512650] input: Nintendo Wii Remote Accelerometer as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:39/0005:057E:0306.0007/input/input18 Sep 11 13:44:44 hp4530s kernel: [ 819.512945] input: Nintendo Wii Remote IR as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:39/0005:057E:0306.0007/input/input19 Sep 11 13:44:44 hp4530s kernel: [ 819.513236] input: Nintendo Wii Remote as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:39/0005:057E:0306.0007/input/input20 Sep 11 13:44:45 hp4530s kernel: [ 820.512501] power_supply wiimote_battery: driver failed to report `capacity' property Sep 11 13:44:45 hp4530s kernel: [ 820.512665] Registered led device: 0005:057E:0306.0007:blue:p0 Sep 11 13:44:45 hp4530s kernel: [ 820.512716] Registered led device: 0005:057E:0306.0007:blue:p1 Sep 11 13:44:45 hp4530s kernel: [ 820.512759] Registered led device: 0005:057E:0306.0007:blue:p2 Sep 11 13:44:45 hp4530s kernel: [ 820.512802] Registered led device: 0005:057E:0306.0007:blue:p3 Sep 11 13:44:45 hp4530s kernel: [ 820.512808] wiimote 0005:057E:0306.0007: New device registered Sep 11 13:44:53 hp4530s kernel: [ 828.245140] show_signal_msg: 48 callbacks suppressed Sep 11 13:44:53 hp4530s kernel: [ 828.249114] pool[4964]: segfault at 100000007 ip 00007faca46a8882 sp 00007fac977decc0 error 4 in libc-2.15.so[7faca462a000+1b3000] Sep 11 13:45:11 hp4530s bluetoothd[1168]: HCI dev 1 down Sep 11 13:45:11 hp4530s bluetoothd[1168]: Adapter /org/bluez/1168/hci1 has been disabled Sep 11 13:45:11 hp4530s kernel: [ 846.298284] usb 2-1.1: USB disconnect, device number 12 Sep 11 13:45:11 hp4530s kernel: [ 846.301945] Bluetooth: hci1 urb ffff8803e1b9cf00 submission failed Sep 11 13:45:11 hp4530s kernel: [ 846.301967] wiimote 0005:057E:0306.0007: Device removed Sep 11 13:45:11 hp4530s bluetoothd[1168]: HCI dev 1 unregistered Sep 11 13:45:11 hp4530s bluetoothd[1168]: Stopping hci1 event socket Sep 11 13:45:11 hp4530s bluetoothd[1168]: Unregister path: /org/bluez/1168/hci1 Sep 11 13:45:12 hp4530s kernel: [ 847.300846] power_supply wiimote_battery: driver failed to report `capacity' property Sep 11 13:45:20 hp4530s kernel: [ 855.700520] usb 2-1.1: new full-speed USB device number 13 using ehci_hcd Sep 11 13:45:21 hp4530s bluetoothd[1168]: HCI dev 1 registered Sep 11 13:45:21 hp4530s bluetoothd[1168]: Listening for HCI events on hci1 Sep 11 13:45:21 hp4530s bluetoothd[1168]: HCI dev 1 up Sep 11 13:45:21 hp4530s bluetoothd[1168]: sap-dummy interface org.bluez.SimAccessTest init failed on path /org/bluez/test Sep 11 13:45:21 hp4530s bluetoothd[1168]: Sap driver initialization failed. Sep 11 13:45:21 hp4530s bluetoothd[1168]: sap-server: Operation not permitted (1) Sep 11 13:45:21 hp4530s bluetoothd[1168]: input-headset driver probe failed for device FC:A1:3E:21:F4:43 Sep 11 13:45:21 hp4530s bluetoothd[1168]: Adapter /org/bluez/1168/hci1 has been enabled Sep 11 13:45:21 hp4530s kernel: [ 856.287987] ------------[ cut here ]------------ Sep 11 13:45:21 hp4530s kernel: [ 856.291707] WARNING: at /home/henrix/src/precise/ubuntu-precise/kernel/workqueue.c:997 __queue_work+0x306/0x320() Sep 11 13:45:21 hp4530s kernel: [ 856.295554] Hardware name: HP ProBook 4530s Sep 11 13:45:21 hp4530s kernel: [ 856.299347] Modules linked in: hid_wiimote ff_memless hidp pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) kvm_intel kvm dm_crypt snd_hda_codec_hdmi snd_hda_codec_idt deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common camellia serpent blowfish_generic blowfish_x86_64 blowfish_common cast5 des_generic xcbc rmd160 sha512_generic crypto_null af_key bnep rfcomm nfsd parport_pc ppdev nfs lockd fscache auth_rpcgss binfmt_misc nfs_acl sunrpc joydev hp_wmi sparse_keymap uvcvideo snd_hda_intel videodev v4l2_compat_ioctl32 ath3k snd_hda_codec btusb snd_hwdep bluetooth hid_logitech_dj snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ath9k mac80211 snd ath9k_common ath9k_hw ath psmouse serio_raw cfg80211 soundcore jmb38x_ms snd_page_alloc memstick mei(C) hp_accel lis3lv02d input_polldev mac_hid coretemp lp parport usb_storage uas usbhid hid radeon sdhci_pci sdhci r8169 i915 wmi ttm drm_kms_helper drm Sep 11 13:45:21 hp4530s kernel: i2c_algo_bit video [last unloaded: ipmi_msghandler] Sep 11 13:45:21 hp4530s kernel: [ 856.321470] Pid: 5032, comm: khidpd_057e0306 Tainted: G C O 3.2.0-31-generic #50~lp1048605v1 Sep 11 13:45:21 hp4530s kernel: [ 856.324625] Call Trace: Sep 11 13:45:21 hp4530s kernel: [ 856.329298] [] warn_slowpath_common+0x7f/0xc0 Sep 11 13:45:21 hp4530s kernel: [ 856.333983] [] warn_slowpath_null+0x1a/0x20 Sep 11 13:45:21 hp4530s kernel: [ 856.338642] [] __queue_work+0x306/0x320 Sep 11 13:45:21 hp4530s kernel: [ 856.340919] [] ? mntput_no_expire+0x30/0xf0 Sep 11 13:45:21 hp4530s kernel: [ 856.342714] [] queue_work_on+0x25/0x30 Sep 11 13:45:21 hp4530s kernel: [ 856.344470] [] queue_work+0x1f/0x30 Sep 11 13:45:21 hp4530s kernel: [ 856.346483] [] hci_conn_del_sysfs+0x23/0x30 [bluetooth] Sep 11 13:45:21 hp4530s kernel: [ 856.348252] [] hci_conn_put_device+0x25/0x30 [bluetooth] Sep 11 13:45:21 hp4530s kernel: [ 856.350044] [] hidp_session+0x3fe/0x510 [hidp] Sep 11 13:45:21 hp4530s kernel: [ 856.352002] [] ? try_to_wake_up+0x200/0x200 Sep 11 13:45:21 hp4530s kernel: [ 856.354508] [] ? try_to_wake_up+0x200/0x200 Sep 11 13:45:21 hp4530s kernel: [ 856.356271] [] ? hidp_recv_ctrl_frame+0xf0/0xf0 [hidp] Sep 11 13:45:21 hp4530s kernel: [ 856.358080] [] kthread+0x8c/0xa0 Sep 11 13:45:21 hp4530s kernel: [ 856.359851] [] kernel_thread_helper+0x4/0x10 Sep 11 13:45:21 hp4530s kernel: [ 856.361667] [] ? flush_kthread_worker+0xa0/0xa0 Sep 11 13:45:21 hp4530s kernel: [ 856.363452] [] ? gs_change+0x13/0x13 Sep 11 13:45:21 hp4530s kernel: [ 856.365263] ---[ end trace 3d57b41153419411 ]--- Sep 11 13:45:22 hp4530s kernel: [ 857.788059] wiimote 0005:057E:0306.0008: hidraw3: BLUETOOTH HID v3a.1c Gamepad [Nintendo RVL-CNT-01] on 00:15:83:C7:39:BC Sep 11 13:45:22 hp4530s kernel: [ 857.791862] input: Nintendo Wii Remote Accelerometer as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:38/0005:057E:0306.0008/input/input21 Sep 11 13:45:22 hp4530s kernel: [ 857.795150] input: Nintendo Wii Remote IR as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:38/0005:057E:0306.0008/input/input22 Sep 11 13:45:22 hp4530s kernel: [ 857.798286] input: Nintendo Wii Remote as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/bluetooth/hci1/hci1:38/0005:057E:0306.0008/input/input23 Sep 11 13:45:23 hp4530s kernel: [ 858.799808] power_supply wiimote_battery: driver failed to report `capacity' property Sep 11 13:45:23 hp4530s kernel: [ 858.805046] Registered led device: 0005:057E:0306.0008:blue:p0 Sep 11 13:45:23 hp4530s kernel: [ 858.805118] Registered led device: 0005:057E:0306.0008:blue:p1 Sep 11 13:45:23 hp4530s kernel: [ 858.805184] Registered led device: 0005:057E:0306.0008:blue:p2 Sep 11 13:45:23 hp4530s kernel: [ 858.805252] Registered led device: 0005:057E:0306.0008:blue:p3 Sep 11 13:45:23 hp4530s kernel: [ 858.805260] wiimote 0005:057E:0306.0008: New device registered