Foxconn device - I wasn’t expecting that, but nevermind
Although same device driver btusb
I have experienced similar problems i.e. Bluetooth fails after restart, but mine is a slightly different device
Here’s mine (mediatek 7921 wifi and bluetooth combined)
mark@gmktec:~$ inxi -Eaz
Bluetooth:
Device-1: MediaTek Wireless_Device driver: btusb v: 0.8 type: USB rev: 2.1
speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-3:3 chip-ID: 0e8d:0608
class-ID: e001 serial: <filter>
Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 5.2
lmp-v: 11 sub-v: 2402 hci-v: 11 rev: 1911 class-ID: 6c0104
Info: acl-mtu: 1021:6 sco-mtu: 240:8 link-policy: rswitch sniff
link-mode: peripheral accept service-classes: rendering, capturing, audio,
telephony
Now, I don’t know how to fix the problem but I do know that, for my device, Ubuntu 24.04 with kernel 6.8.0-52 works flawlessly - both first boot and restart.
Often, when using a 6.11 kernel, I have had to resort to this trick to re-activate Bluetooth:-
- Close applications and power off
- Remove the power cable (desktop) (laptop - remove battery?)
- Press and hold the power button for more than 30 seconds
- Re-attach power cable (or battery)
- Boot the PC
Here’s a couple of links where I have tried to investigate and fix a similar difficulty.
So far, unsuccessfully
https://discourse.ubuntu.com/t/bluetooth-failure-on-reboot-kernel-6-11-0-17-mediatek-7921/55462
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2100027
I’ll keep an eye on this thread to see what transpires.