Bluetooth cannot find devices again after installing drivers

[micamorple]

Hi! I am new here.

I fixed this issue before by replicating the solution posted in this topic: viewtopic.php?t=339628.

However, after a couple of weeks, the bluetooth in my machine cannot find devices again. I tried to redo the solution, but the system notified me that the directory is already existing, thus it will be a duplicate if I proceed to do it again. I wonder why my bluetooth is not working yet the drivers/directory is already existing in the system.

Noob question, I hope you won't mind helping me, I am new to Linux Mint.

Thanks!

[sleeper12]

Maybe bluetooth is blocked? What does this show:

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 rfkill list all 

[AndyMH]

Install blueman (software manager), it is much better than the default blueberry app.

[micamorple]

Maybe bluetooth is blocked? What does this show:

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 rfkill list all 

This is what I got:

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0: ideapad_wlan: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: ideapad_bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
3: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

[micamorple]

Install blueman (software manager), it is much better than the default blueberry app.

I have installed blueman and uninstalled blueberry. Still bluetooth cannot detect/find devices.

[sleeper12]

Nothing is blocked, so I dunno. Try restarting your router/modem & machine. It might also help to post results of:

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 inxi -Fxxxrz && lspci && mokutil --sb-state 

[donten]

I've been seeing this in my logs:

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journalctl -xb | grep blue
Aug 01 07:00:10 Garuda2 NetworkManager[859]: <info>  [1627826410.7077] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-bluetooth.so)
Aug 01 07:00:15 Garuda2 dbus-daemon[857]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.42' (uid=120 pid=1273 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
-- Subject: A start job for unit bluetooth.service has finished successfully
-- A start job for unit bluetooth.service has finished successfully.
Aug 01 07:00:29 Garuda2 dbus-daemon[1524]: [session uid=1000 pid=1524] Activating via systemd: service name='org.bluez.obex' unit='dbus-org.bluez.obex.service' requested by ':1.64' (uid=1000 pid=1892 comm="blueberry-obex-agent                              " label="unconfined")
Aug 01 07:00:29 Garuda2 dbus-daemon[1524]: [session uid=1000 pid=1524] Successfully activated service 'org.bluez.obex'
Aug 01 07:00:40 Garuda2 dbus-daemon[857]: [system] Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
Aug 01 07:00:40 Garuda2 pulseaudio[1515]: GetManagedObjects() failed: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
Aug 01 07:16:48 Garuda2 dbus-daemon[857]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.77' (uid=1000 pid=4670 comm="/opt/vivaldi/vivaldi-bin https://www.codepink.org/" label="unconfined")

By searching, I see several other distros are having this issue. Again, I don't know if the op's post is related to this, as this appears to have no effect on me, since I do not use bluetooth devices. I do remember seeing a reply that mentions usb devices:

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Hardware matters:
$ lsusb
Bus 003 Device 002: ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0

$ rfkill list
1: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no

$ dmesg | grep blue
[    2.995901] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0a5c-21e8.hcd failed with error -2

# lsmod | grep btusb
btusb                  53248  0
btrtl                  16384  1 btusb
btbcm                  16384  1 btusb
btintel                16384  1 btusb
bluetooth             598016  5 btrtl,btintel,btbcm,btusb
usbcore               286720  10 xhci_hcd,ehci_pci,usbhid,em28xx_dvb,usb_storage,ehci_hcd,btusb,xhci_pci,uas,em28xx

[donten]

The usb info came from here https://bugs.mageia.org/show_bug.cgi?id=19140#c4

I am typing this on a Logitech wireless keyboard....