Hmm, I guess the dmesg above was mispasted.

"modprobe -r btusb" gives


[ 6998.064598] usbcore: deregistering interface driver btusb
[ 6998.064608] usb usb1: usb auto-resume
[ 6998.064639] hub 1-0:1.0: hub_resume
[ 6998.064659] usb usb1-port2: status 0507 change 0000
[ 6998.064674] usb usb1-port7: status 0107 change 0000
[ 6998.064677] usb usb1-port8: status 0107 change 0000
[ 6998.064680] usb usb1-port9: status 0107 change 0000
[ 6998.064694] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 6998.064741] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 6998.091617] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 6998.111570] usb 1-8: usb auto-resume
[ 6998.111600] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0100
[ 6998.179602] usb 1-8: Waited 0ms for CONNECT
[ 6998.179603] usb 1-8: finish resume
[ 6998.203699] usb 1-8: usb auto-suspend, wakeup 0
[ 6998.227621] hub 1-0:1.0: hub_suspend
[ 6998.227635] usb usb1: bus auto-suspend, wakeup 1


subsequent "modprobe btusb" gives:

[ 7006.302906] usb usb1: usb auto-resume
[ 7006.302938] hub 1-0:1.0: hub_resume
[ 7006.302959] usb usb1-port2: status 0507 change 0000
[ 7006.302973] usb usb1-port7: status 0107 change 0000
[ 7006.302977] usb usb1-port8: status 0107 change 0000
[ 7006.302980] usb usb1-port9: status 0107 change 0000
[ 7006.302994] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7006.303044] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7006.351578] usb 1-8: usb auto-resume
[ 7006.351666] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0100
[ 7006.423565] usb 1-8: Waited 0ms for CONNECT
[ 7006.423567] usb 1-8: finish resume
[ 7006.423797] btusb 1-8:1.0: usb_probe_interface
[ 7006.423799] btusb 1-8:1.0: usb_probe_interface - got id
[ 7006.424039] usbcore: registered new interface driver btusb
[ 7008.443419] Bluetooth: hci0: command 0xfc05 tx timeout
[ 7008.443427] Bluetooth: hci0: Reading Intel version information failed (-110)
[ 7008.463483] usb 1-8: usb auto-suspend, wakeup 0
[ 7008.483434] hub 1-0:1.0: hub_suspend
[ 7008.483473] usb usb1: bus auto-suspend, wakeup 1
[ 7200.187930] usbcore: deregistering interface driver btusb
[ 7200.187940] usb usb1: usb auto-resume
[ 7200.187963] hub 1-0:1.0: hub_resume
[ 7200.187979] usb usb1-port2: status 0507 change 0000
[ 7200.187993] usb usb1-port7: status 0107 change 0000
[ 7200.187996] usb usb1-port8: status 0107 change 0000
[ 7200.188000] usb usb1-port9: status 0107 change 0000
[ 7200.188014] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7200.188058] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7200.206254] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7200.234035] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0100
[ 7200.234040] usb 1-8: usb auto-resume
[ 7200.302166] usb 1-8: Waited 0ms for CONNECT
[ 7200.302168] usb 1-8: finish resume
[ 7200.326073] usb 1-8: usb auto-suspend, wakeup 0
[ 7200.346253] hub 1-0:1.0: hub_suspend
[ 7200.346260] usb usb1: bus auto-suspend, wakeup 1
[ 7200.490109] NET: Unregistered protocol family 31
[ 7200.560277] Bluetooth: Core ver 2.22
[ 7200.560294] NET: Registered protocol family 31
[ 7200.560294] Bluetooth: HCI device and connection manager initialized
[ 7200.560310] Bluetooth: HCI socket layer initialized
[ 7200.560311] Bluetooth: L2CAP socket layer initialized
[ 7200.560317] Bluetooth: SCO socket layer initialized
[ 7200.566144] Bluetooth: RFCOMM TTY layer initialized
[ 7200.566148] Bluetooth: RFCOMM socket layer initialized
[ 7200.566152] Bluetooth: RFCOMM ver 1.11
[ 7200.568718] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 7200.568720] Bluetooth: BNEP filters: protocol multicast
[ 7200.568722] Bluetooth: BNEP socket layer initialized
[ 7200.576847] usb usb1: usb auto-resume
[ 7200.576870] hub 1-0:1.0: hub_resume
[ 7200.576895] usb usb1-port2: status 0507 change 0000
[ 7200.576914] usb usb1-port7: status 0107 change 0000
[ 7200.576919] usb usb1-port8: status 0107 change 0000
[ 7200.576924] usb usb1-port9: status 0107 change 0000
[ 7200.576941] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7200.577002] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[ 7200.622166] usb 1-8: usb auto-resume
[ 7200.622178] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0100
[ 7200.698184] usb 1-8: Waited 0ms for CONNECT
[ 7200.698185] usb 1-8: finish resume
[ 7200.698352] btusb 1-8:1.0: usb_probe_interface
[ 7200.698354] btusb 1-8:1.0: usb_probe_interface - got id
[ 7200.699325] usbcore: registered new interface driver btusb
[ 7200.699472] Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014
[ 7200.706475] Bluetooth: hci0: Device revision is 5
[ 7200.706477] Bluetooth: hci0: Secure boot is enabled
[ 7200.706478] Bluetooth: hci0: OTP lock is enabled
[ 7200.706478] Bluetooth: hci0: API lock is enabled
[ 7200.706479] Bluetooth: hci0: Debug lock is disabled
[ 7200.706480] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 7200.706678] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi
[ 7201.706657] usbcore: deregistering interface driver btusb
[ 7201.706701] xhci_hcd 0000:00:14.0: shutdown urb ffff9b4e9fb36600 ep1in-intr
[ 7201.706713] Bluetooth: hci0: urb 00000000212d5cc3 failed to resubmit (2)
[ 7201.706731] xhci_hcd 0000:00:14.0: shutdown urb ffff9b4ef5352f00 ep2out-bulk
[ 7201.706782] xhci_hcd 0000:00:14.0: shutdown urb ffff9b4e9fb36900 ep2in-bulk
[ 7201.706785] xhci_hcd 0000:00:14.0: shutdown urb ffff9b4e9fb36b40 ep2in-bulk
[ 7201.706819] Bluetooth: hci0: urb 00000000058923fa failed to resubmit (2)
[ 7201.708078] e1000e: eth0 NIC Link is Down
[ 7201.775273] wlan0: deauthenticating from fc:ec:da:12:a9:cc by local choice (Reason: 3=DEAUTH_LEAVING)
[ 7201.804870] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 7202.090909] PM: suspend entry (deep)
[ 7202.090910] PM: Syncing filesystems ... done.
[ 7202.102549] Freezing user space processes ... 
[ 7203.738232] Bluetooth: hci0: command 0xfc09 tx timeout
[ 7211.866165] Bluetooth: hci0: Failed to send firmware data (-110)