This sounds related.  When I suspend/resume in Quantal I lose bluetooth 
sometimes.  This happens both with suspend and with Hibernate.  I'm running 
kernel:
Linux patrol 3.5.0-18-generic #29-Ubuntu SMP Fri Oct 19 10:26:51 UTC 2012 
x86_64 x86_64 x86_64 GNU/Linux



[10420.855640] thinkpad_acpi: asked for hotkey mask 0x0070ffbf, but firmware 
forced it to 0x0070ffbb
[10420.924233] ------------[ cut here ]------------
[10420.924239] WARNING: at /build/buildd/linux-3.5.0/fs/sysfs/dir.c:529 
sysfs_add_one+0xca/0x100()
[10420.924240] Hardware name: 2436CTO
[10420.924241] sysfs: cannot create duplicate filename 
'/class/bluetooth/hci0:11'
[10420.924241] Modules linked in: hid_generic hidp hid snd_hda_codec_hdmi 
joydev pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) uvcvideo 
videobuf2_core videodev videobuf2_vmalloc videobuf2_memops btusb bnep rfcomm 
parport_pc bluetooth arc4 ppdev snd_hda_codec_realtek nvidia(PO) coretemp 
kvm_intel kvm ghash_clmulni_intel aesni_intel cryptd snd_hda_intel aes_x86_64 
snd_hda_codec snd_hwdep snd_pcm snd_seq_midi thinkpad_acpi snd_rawmidi 
microcode snd_seq_midi_event snd_seq snd_timer snd_seq_device iwlwifi psmouse 
snd nvram tpm_tis mac80211 nfsd serio_raw wmi nfs video lpc_ich lockd cfg80211 
mei fscache auth_rpcgss nfs_acl mac_hid soundcore snd_page_alloc sunrpc lp 
parport firewire_ohci firewire_core sdhci_pci crc_itu_t sdhci e1000e
[10420.924274] Pid: 14811, comm: kworker/u:7 Tainted: P           O 
3.5.0-18-generic #29-Ubuntu
[10420.924275] Call Trace:
[10420.924279]  [<ffffffff81051c1f>] warn_slowpath_common+0x7f/0xc0
[10420.924281]  [<ffffffff81051d16>] warn_slowpath_fmt+0x46/0x50
[10420.924283]  [<ffffffff811f2aaa>] sysfs_add_one+0xca/0x100
[10420.924285]  [<ffffffff811f37dd>] sysfs_do_create_link+0x12d/0x200
[10420.924287]  [<ffffffff811f38c3>] sysfs_create_link+0x13/0x20
[10420.924289]  [<ffffffff8141ce3c>] device_add+0x3dc/0x6c0
[10420.924291]  [<ffffffff8141b3b1>] ? dev_set_name+0x41/0x50
[10420.924299]  [<ffffffffa04aa435>] hci_conn_add_sysfs+0x45/0x80 [bluetooth]
[10420.924303]  [<ffffffffa049d520>] hci_conn_complete_evt.isra.47+0xd0/0x390 
[bluetooth]
[10420.924307]  [<ffffffffa04a01b0>] hci_event_packet+0x1720/0x2580 [bluetooth]
[10420.924310]  [<ffffffff8103fa39>] ? default_spin_lock_flags+0x9/0x10
[10420.924315]  [<ffffffffa049484b>] hci_rx_work+0x1bb/0x310 [bluetooth]
[10420.924319]  [<ffffffff8168337e>] ? _raw_spin_lock+0xe/0x20
[10420.924321]  [<ffffffff8107076a>] process_one_work+0x12a/0x420
[10420.924325]  [<ffffffffa0494690>] ? hci_send_frame+0x90/0x90 [bluetooth]
[10420.924335]  [<ffffffff8107130e>] worker_thread+0x12e/0x2f0
[10420.924337]  [<ffffffff810711e0>] ? manage_workers.isra.26+0x200/0x200
[10420.924340]  [<ffffffff81075e03>] kthread+0x93/0xa0
[10420.924343]  [<ffffffff8168c924>] kernel_thread_helper+0x4/0x10
[10420.924345]  [<ffffffff81075d70>] ? kthread_freezable_should_stop+0x70/0x70
[10420.924347]  [<ffffffff8168c920>] ? gs_change+0x13/0x13
[10420.924348] ---[ end trace 1af38075db670b9c ]---
[10420.924380] Bluetooth: Failed to register connection device


Wakeup:
Device  S-state   Status   Sysfs node
LID       S4    *enabled   
SLPB      S3    *enabled   
IGBE      S4    *enabled   pci:0000:00:19.0
EXP3      S4    *disabled  
XHCI      S3    *enabled   pci:0000:00:14.0
EHC1      S3    *enabled   pci:0000:00:1d.0
EHC2      S3    *enabled   pci:0000:00:1a.0
HDEF      S4    *disabled  pci:0000:00:1b.0

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https://bugs.launchpad.net/bugs/1065157

Title:
  0a5c:2145 bluetooth mouse disconnects after sleep and resume

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