Sin hardware Bluetooth en Ubuntu 20.04

Sin hardware Bluetooth en Ubuntu 20.04

Tengo una computadora portátil HP, configurada en arranque dual con Windows 10.

Bluetooth funciona normalmente en Windows 10 pero no parece funcionar en Ubuntu. Leí cientos de hilos sin suerte y finalmente publiqué una pregunta aquí.

Salida terminal de algunos comandos que probé:

> ● bluetooth.service - Bluetooth service
>      Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
>      Active: active (running) since Sat 2021-08-21 16:49:53 PKT; 13min ago
>        Docs: man:bluetoothd(8)    Main PID: 3439 (bluetoothd)
>      Status: "Running"
>       Tasks: 1 (limit: 9337)
>      Memory: 1.5M
>      CGroup: /system.slice/bluetooth.service
>              └─3439 /usr/lib/bluetooth/bluetoothd
> 
> اگست 21 16:49:53 HaroonsLap systemd[1]: Starting Bluetooth service...
> اگست 21 16:49:53 HaroonsLap bluetoothd[3439]: Bluetooth daemon 5.53
> اگست 21 16:49:53 HaroonsLap systemd[1]: Started Bluetooth service.
> اگست 21 16:49:53 HaroonsLap bluetoothd[3439]: Starting SDP server اگست
> 21 16:49:53 HaroonsLap bluetoothd[3439]: Bluetooth management
> interface 1.19 initialized

haroon@HaroonsLap:~$ rfkill list all
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

haroon@HaroonsLap:~$ sudo lshw | grep -A 10 "blue"
haroon@HaroonsLap:~$ sudo rmmod rtbth
rmmod: ERROR: Module rtbth is not currently loaded

haroon@HaroonsLap:~$ journalctl -xb | grep blue
اگست 21 16:48:46 HaroonsLap NetworkManager[1047]: <info>  [1629546526.1066] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-bluetooth.so)
اگست 21 16:48:47 HaroonsLap /usr/lib/gdm3/gdm-x-session[1232]: (II) modeset(0): blueX: 0.160 blueY: 0.135   whiteX: 0.313 whiteY: 0.329
اگست 21 16:48:47 HaroonsLap dbus-daemon[1046]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.36' (uid=1000 pid=1221 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo")
-- Subject: A start job for unit bluetooth.service has finished successfully
-- A start job for unit bluetooth.service has finished successfully.
اگست 21 16:49:02 HaroonsLap dbus-daemon[1237]: [session uid=1000 pid=1237] Activating via systemd: service name='org.bluez.obex' unit='dbus-org.bluez.obex.service' requested by ':1.89' (uid=1000 pid=2917 comm="gnome-control-center ")
اگست 21 16:49:02 HaroonsLap dbus-daemon[1237]: [session uid=1000 pid=1237] Successfully activated service 'org.bluez.obex'
اگست 21 16:49:12 HaroonsLap dbus-daemon[1046]: [system] Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
اگست 21 16:49:53 HaroonsLap sudo[3426]:   haroon : TTY=pts/0 ; PWD=/home/haroon ; USER=root ; COMMAND=/usr/bin/systemctl restart bluetooth
-- Subject: A start job for unit bluetooth.service has begun execution
-- A start job for unit bluetooth.service has begun execution.
اگست 21 16:49:53 HaroonsLap bluetoothd[3439]: Bluetooth daemon 5.53
-- Subject: A start job for unit bluetooth.service has finished successfully
-- A start job for unit bluetooth.service has finished successfully.
اگست 21 16:49:53 HaroonsLap bluetoothd[3439]: Starting SDP server
اگست 21 16:49:53 HaroonsLap dbus-daemon[1046]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.87' (uid=0 pid=3439 comm="/usr/lib/bluetooth/bluetoothd ")
اگست 21 16:49:53 HaroonsLap bluetoothd[3439]: Bluetooth management interface 1.19 initialized

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