Re: Kubuntu 24.04 LTS - how to get rid of a «soft» block that disables Bluetooth?

[Jeffrey Walton]

On Tue, Aug 13, 2024 at 12:30 PM Bastiaan Gijsbertus Roufs
<basroufs at gmail.com> wrote:
>
> Kubuntu 24.04 LTS - how to get rid of a «soft» block that disables Bluetooth?
>
> Hello,
>
> here are the results of a Bluetooth related terminal test...
>
> bas at Camino:~$ rfkill list
> 0: tpacpi_bluetooth_sw: Bluetooth
>         Soft blocked: yes
>         Hard blocked: no
> 1: phy0: Wireless LAN
>         Soft blocked: no
>         Hard blocked: no
>
> No hard block anymore. Some software problem remains. WIFI is completely OK.
>
> Now, I share results of another test...
>
> «(...)
> bas at Camino:~$ systemctl status bluetooth
> ● bluetooth.service - Bluetooth service
>      Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; preset: enabled)
>      Active: active (running) since Tue 2024-08-13 17:36:43 CEST; 40min ago
>        Docs: man:bluetoothd(8)
>    Main PID: 2404 (bluetoothd)
>      Status: "Running"
>       Tasks: 1 (limit: 18715)
>      Memory: 2.3M (peak: 2.8M)
>         CPU: 113ms
>      CGroup: /system.slice/bluetooth.service
>              └─2404 /usr/libexec/bluetooth/bluetoothd
>
> aug 13 17:36:43 Camino bluetoothd[2404]: Starting SDP server
> aug 13 17:36:43 Camino bluetoothd[2404]: src/plugin.c:plugin_init() System does not support csip plugin
> aug 13 17:36:43 Camino bluetoothd[2404]: profiles/audio/micp.c:micp_init() D-Bus experimental not enabled
> lines 1-15
>
> (...)»
> ====
>
> When looking at the above test results, much is OK already apparently. The last three lines tell something about the soft block. Does anybody know what to do next to get Bluetooth fully functional?
>
> Here comes more system info:
>
> Operating System: Kubuntu 24.04
> KDE Plasma Version: 5.27.11
> KDE Frameworks Version: 5.115.0
> Qt Version: 5.15.13
> Kernel Version: 6.8.0-40-generic (64-bit)
> Graphics Platform: X11
> Processors: 4 × Intel® Core™ i5-3320M CPU @ 2.60GHz
> Memory: 15,3 GiB of RAM
> Graphics Processor: Mesa Intel® HD Graphics 4000
> Manufacturer: LENOVO
> Product Name: 2325AZ8
> System Version: ThinkPad X230
> Serial number: R9XTT6X

And:

> However, when hitting the [BT] «enable» button, nothing happens.

It looks like the latest BIOS/UEFI for the ThinkPad X230 is 2.77 dated
October 2019.[1]

What is the date and version of the BIOS from dmidecode? It will look
something like this (from a Dell XPS 8930):

   $ sudo dmidecode
   ...
   BIOS Information
        Vendor: Dell Inc.
        Version: 1.1.31
        Release Date: 11/21/2023
   ...

[1] https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x230/downloads/ds029187-bios-update-utility-bootable-cd-for-windows-10-64-bit-81-8-7-32-bit-64-bit-xp-thinkpad-x230-x230i

Jeff