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[Gab <1579318@xxxxxxxxxxxxxxxxxx>]

This week-end i tried kernel 4.7-rc4 and still it couldn't recognize my
bluetooth adapter.

I can add some useful informations:
1) i got the bluetooth working using this project: https://github.com/neurobin/MT7630E
2) the usb id changes depending how i boot the computer. If I boot windows first (i have a dual boot), and i reboot as Linux without power off the usb id is: 0e8d:763f, if I boot Linux fresh (after a power off) the usb id is 0489:e080. Also if i use the driver mentioned at point 1 the usb id is 0e8d:763f. I have the strong suspect the drivers load a firmware that changes the usb id.

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https://bugs.launchpad.net/bugs/1579318

Title:
  0e8d:763f Bluetooth adapter not recognized

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I am running Ubuntu 16.04 LTS, kernel 4.4.0-22

  The bluetooth adapter is not correctly recognized:
  T:  Bus=01 Lev=02 Prnt=02 Port=05 Cnt=04 Dev#=  6 Spd=480  MxCh= 0
  D:  Ver= 2.01 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
  P:  Vendor=0e8d ProdID=763f Rev= 1.00
  S:  Manufacturer=MediaTek
  S:  Product=BT
  S:  SerialNumber=1.0
  C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=450mA
  A:  FirstIf#= 0 IfCount= 2 Cls=ff(vend.) Sub=ff Prot=ff
  I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
  E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
  E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
  I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
  I:  If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
  I:  If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
  I:  If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
  I:  If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
  I:  If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
  I:  If#= 1 Alt= 6 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb
  E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
  E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
  --- 
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  gab        4107 F.... pulseaudio
   /dev/snd/controlC0:  gab        4107 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 16.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-06-22 (727 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: ASUSTeK COMPUTER INC. X555LJ
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=/dev/sda1 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-24-generic N/A
   linux-backports-modules-4.4.0-24-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-24-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-05-02 (47 days ago)
  UserGroups: adm cdrom dip fuse lpadmin plugdev sambashare sudo users vboxusers
  _MarkForUpload: True
  dmi.bios.date: 12/10/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X555LJ.507
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X555LJ
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX555LJ.507:bd12/10/2015:svnASUSTeKCOMPUTERINC.:pnX555LJ:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX555LJ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X555LJ
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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