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  [regression] Logitech M337 mice are automatically disconnected after

Status in Bluez Utilities:
Status in OEM Priority Project:
Status in bluez package in Ubuntu:

Bug description:
  The BT 3.0 mouse is disconnected automatically after connected with the 
  The fail rate is around 9/10.

  1. The bug only occurs on the machine with intel 8265 module.
   I got three Dell XPS 13 (one is with Killer 1435, two are with intel 8265).
   This bug can not be reproduced on the machine with Killer 1435. 

  2. This bug can be reproduced since bluez 5.46.
   Using bluez 5.45, this bug can not be reproduced.

  Notebook: Dell XPS 13
  Wi-Fi/BT module: intel 8265, 8087:0a2b
  bluez: 5.48
  BT mouse: logitech M337
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 18.04
  InstallationDate: Installed on 2018-05-29 (0 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  InterestingModules: rfcomm bnep btusb bluetooth
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 002: ID 0bda:58f4 Realtek Semiconductor Corp. 
   Bus 001 Device 004: ID 27c6:5385  
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9370
  Package: bluez 5.48-0ubuntu3 [origin: unknown]
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic 
root=UUID=d6251f09-cbb5-4635-8f42-31e6c32f1c03 ro quiet splash vt.handoff=1
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Tags: third-party-packages bionic
  Uname: Linux 4.15.0-22-generic x86_64
  UnreportableReason: This is not an official Ubuntu package. Please remove any 
third party package and try again.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True 11/03/2017
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 0.3.13 0173S1
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
dmi:bvnDellInc.:bvr0.3.13:bd11/03/2017:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0173S1:rvrA00:cvnDellInc.:ct9:cvr: XPS XPS 13 9370
  dmi.sys.vendor: Dell Inc.
   hci0:        Type: Primary  Bus: USB
        BD Address: D4:25:8B:4F:7E:D6  ACL MTU: 1021:4  SCO MTU: 96:6
        RX bytes:61781 acl:382 sco:0 events:536 errors:0
        TX bytes:7985 acl:69 sco:0 commands:168 errors:0

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