Ubuntu Version:
Ubuntu 24.04.3 LTS
Lenovo ThinkPad T14 Gen 5
Intel® Core™ Ultra 5 125H × 18
Linux 6.14.0-29-generic
fully patched, standard desktop environment
Problem Description:
After a sleep, periodically (not consistently) my laptop will no longer reconnect to my bluetooth mouse. Restarting fixes it. Logging out does not. I can’t see a pattern in what precedes the loss of reconnectivity.
Also, once in the state of not connecting, it does not let me connect a new device (ie. if I switch the mouse to one of its alternative channels), as the device is not discovered.
Relevant System Information:
Logitech MX Vertical
bluetoothctl info
Device F0:B7:EA:51:81:F4 (random)
Name: MX Vertical
Alias: MX Vertical
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:v046DpB020d0009
Battery Percentage: 0x64 (100)
[MX Vertical]#
hciconfig
$ hciconfig
hci0: Type: Primary Bus: USB
BD Address: 5C:B4:7E:D2:84:B6 ACL MTU: 1021:4 SCO MTU: 96:6
UP RUNNING PSCAN
RX bytes:485683 acl:26749 sco:0 events:268 errors:0
TX bytes:9195 acl:67 sco:0 commands:156 errors:0
inxi
$ inxi --bluetooth
Bluetooth:
Device-1: Intel driver: btusb type: USB
Report: hciconfig ID: hci0 state: up address: 5C:B4:7E:D2:84:B6 bt-v: 5.4
What I’ve Tried:
I’m not technical enough to try anything fancy. I’m reporting here in case it helps isolate cause for maintainers.
I’ve not reported the issue for months because I had hoped the issue would be found and patched over time, given multiple other reports. Other threads with similar reported behaviour:
- 24.04.2 seems to have broken bluetooth device discovery, eek! - #8 by Jeremy31
- Bluetooth stopped discovering new and connecting already paired to devices after 24.04.2 upgrade
They have not found answers either.