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[Kaarel <1481136@xxxxxxxxxxxxxxxxxx>]

I have the same Bluetooth mouse and had the same issue, a script fixed
this problem for me (http://ubuntuforums.org/showthread.php?t=1387211).

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https://bugs.launchpad.net/bugs/1481136

Title:
  Bluetooth mouse fails to reconnect after suspend + resume

Status in canonical-pocket-desktop:
  In Progress
Status in bluez package in Ubuntu:
  In Progress

Bug description:
  I can connect the bluetooth mouse (Logitech M557) using the GUI and
  the device works properly.

  However, after suspend and resume the mouse fails to reconnect. It
  does "attempt" to reconnect, in that I see the padlock flashes
  momentarily onto the bluetooth icon on the toolbar applet. Similarly,
  if the Bluetooth Settings dialog is open the devices flashes
  momentarily bold as if connected. Both effects happen whenever the
  mouse is used (movement or mouse click) but the device does not
  connect.

  I have a workaround, which is to remove the device and pair it using
  the command line as follows:

  sudo bluez-test-device remove 00:1F:20:EF:B1:00
  sudo bluez-simple-agent hci0 00:1F:20:EF:B1:00 remove
  sudo bluez-simple-agent hci0 00:1F:20:EF:B1:00
  sudo bluez-test-device trusted 00:1F:20:EF:B1:00 yes
  sudo bluez-test-input connect 00:1F:20:EF:B1:00

  Once paired manually in this manner the devices appears in the
  Bluetooth Settings as normal an successfully reconnects when resuming.

  I'm submitted a new bug as this is similar but not the same as other
  bugs reported. In particular the workarounds presented in other bugs
  do not work for me and the workaround I'm using was not suggested in
  other cases.

  Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: bluez 4.101-0ubuntu25
  ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
  Uname: Linux 3.19.0-25-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Aug  4 09:53:18 2015
  InstallationDate: Installed on 2014-01-23 (557 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  InterestingModules: rfcomm bnep btusb bluetooth
  MachineType: TOSHIBA KIRA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic.efi.signed root=UUID=a0fdb0ee-bbeb-4872-8e79-1a785c304e91 ro libata.force=noncq vesafb.invalid=1 splash quiet nopat vt.handoff=7
  SourcePackage: bluez
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/15/2013
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 1.30
  dmi.board.asset.tag: 0000000000
  dmi.board.name: KIRA
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.30:bd02/15/2013:svnTOSHIBA:pnKIRA:pvrPSU7FA-00T00K:rvnTOSHIBA:rnKIRA:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: KIRA
  dmi.product.version: PSU7FA-00T00K
  dmi.sys.vendor: TOSHIBA
  hciconfig:
   hci0:	Type: BR/EDR  Bus: USB
    BD Address: B4:B6:76:C4:A2:88  ACL MTU: 310:10  SCO MTU: 64:8
    UP RUNNING PSCAN
    RX bytes:587136 acl:36542 sco:0 events:271 errors:0
    TX bytes:2913 acl:109 sco:0 commands:81 errors:0
  mtime.conffile..etc.bluetooth.main.conf: 2015-08-01T14:24:23.630880

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