Booted back into 6.11.0-26-generic, which is the kernel it used to run
before the upgrade, but otherwise with the 25.04 rootfs and bluez 5.79.
The mouse and keyboard worked immediately, just as they used to,
including across reboots, power cycling the devices and suspending the
laptop.

Booted into 6.14.0-15-generic with the same rootfs and again they need
re-pairing.

Until the re-pair, the MAC addresses of the mouse and keyboard were
constant, even when power cycled.

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https://bugs.launchpad.net/bugs/2113469

Title:
  Logitech MX Anywhere and MX Keys need to re-pair after suspend after
  upgrading to 25.04

Status in bluez package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After upgrading from Ubuntu 24.10 to 25.04 my Logitech MX Keys
  keyboard and MX Anywhere mouse need to be re-paired after the laptop
  is suspended. My headphones and phone do not. I am using the built-in
  Bluetooth interface of a Dell Latitude 7280.

  The Logitech devices seem to increment their MAC addresses whenever
  they reconnect as a privacy feature. This did not cause a problem with
  previous Ubuntu releases. They get "(random)" appended in the results
  of a bluetoothctl info.

  I'm running bluez 5.79-2ubuntu1 and kernel 6.14.0-15-generic with
  default Bluetooth settings.

  Device [omitted]:D3 (random)
        Name: MX Anywhere 3
        Alias: MX Anywhere 3
        Appearance: 0x03c2 (962)
        Icon: input-mouse
        Paired: yes
        Bonded: yes
        Trusted: yes
        Blocked: no
        Connected: yes
        WakeAllowed: yes
        LegacyPairing: no
        UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        UUID: Device Information        (0000180a-0000-1000-8000-00805f9b34fb)
        UUID: Battery Service           (0000180f-0000-1000-8000-00805f9b34fb)
        UUID: Human Interface Device    (00001812-0000-1000-8000-00805f9b34fb)
        UUID: Vendor specific           (00010000-0000-1000-8000-011f2000046d)
        Modalias: usb:v046DpB025d0014
        AdvertisingFlags:
    05                                               .               
        Battery Percentage: 0x3c (60)

  After a suspend/resume, this device is now [omitted]:D4, then
  [omitted]:D5 etc.

  I have checked that Experimental and KernelExperimental are false in
  /etc/bluetooth/main.conf (and tried setting them to true - no
  difference).

  These devices have worked fine for the last 4 years on all previous releases 
since 20.10.
  --- 
  ProblemType: Bug
  ApportVersion: 2.32.0-0ubuntu5.1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 25.04
  InstallationDate: Installed on 2022-06-11 (1094 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 
(20220419)
  InterestingModules: rfcomm bnep btusb bluetooth
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  MachineType: Dell Inc. Latitude 7280
  Package: linux
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-15-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash 
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M 
vt.handoff=7
  ProcVersionSignature: Ubuntu 6.14.0-15.15-generic 6.14.0
  Tags: plucky wayland-session
  Uname: Linux 6.14.0-15-generic x86_64
  UpgradeStatus: Upgraded to plucky on 2025-05-26 (14 days ago)
  UserGroups: adm cdrom dip libvirt lpadmin lxd plugdev sambashare sudo 
vboxusers
  _MarkForUpload: True
  dmi.bios.date: 11/05/2024
  dmi.bios.release: 1.40
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.40.0
  dmi.board.name: 0KK5D1
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.40.0:bd11/05/2024:br1.40:svnDellInc.:pnLatitude7280:pvr:rvnDellInc.:rn0KK5D1:rvrA00:cvnDellInc.:ct10:cvr:sku079F:
  dmi.product.family: Latitude
  dmi.product.name: Latitude 7280
  dmi.product.sku: 079F
  dmi.sys.vendor: Dell Inc.
  hciconfig:
   hci0:        Type: Primary  Bus: USB
        BD Address: 68:EC:C5:78:EA:0A  ACL MTU: 1021:4  SCO MTU: 96:6
        UP RUNNING PSCAN 
        RX bytes:111098 acl:5040 sco:0 events:2931 errors:0
        TX bytes:610359 acl:341 sco:0 commands:2543 errors:0

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