gnome-control-center says "no bluetooth found" even though bluetooth is present and somewhat usable

[Rolf Leggewie]

I am running bionic and the gnome-control-center on the bluetooth tab tells me that "no bluetooth found" and that I should plug in a dongle to use bluetooth. My computer has built-in bluetooth.

I believe I am seeing what's being discussed at http://gnome-apps.13852.n7.nabble.com/No-Bluetooth-Found-Plug-in-a-dongle-to-use-Bluetooth-td68467.html especially the message by Bjørn Forsman, dated Dec 31 2016.

$ ll /dev/rfkill
crw-rw-r--+ 1 root root 10, 62 Mai 29 17:19 /dev/rfkill

$ bluetoothctl
[NEW] Controller 3C:77:E6:EC:91:4E work [default]
[NEW] Device 20:A9:0E:1B:1B:84 alcatel POP 4
Agent registered
[bluetooth]# show
Controller 3C:77:E6:EC:91:4E (public)
        Name: work
        Alias: work
        Class: 0x0010010c
        Powered: yes
        Discoverable: yes
        Pairable: yes
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
        UUID: OBEX File Transfer (00001106-0000-1000-8000-00805f9b34fb)
        UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
        UUID: OBEX Object Push (00001105-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
        UUID: IrMC Sync (00001104-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Vendor specific (00005005-0000-1000-8000-0002ee000001)
        UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
        UUID: Phonebook Access Server (0000112f-0000-1000-8000-00805f9b34fb)
        UUID: Message Access Server (00001132-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v1D6Bp0246d0530
        Discovering: yes

$ rfkill list all
0: tpacpi_bluetooth_sw: Bluetooth
        Soft blocked: no
        Hard blocked: no
1: tpacpi_wwan_sw: Wireless WAN
        Soft blocked: no
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
30: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

This is what I see in /var/log/syslog when trying to send a file from a paired phone.

Jun 9 22:01:24 work obexd[18062]: CONNECT(0x0), (null)(0xffffffff)
Jun 9 22:01:24 work obexd[18062]: CONNECT(0x0), (null)(0x0)
Jun 9 22:01:24 work obexd[18062]: PUT(0x2), (null)(0xffffffff)
Jun 9 22:01:24 work obexd[18062]: PUT(0x2), FORBIDDEN(0x43)
Jun 9 22:01:24 work obexd[18062]: DISCONNECT(0x1), (null)(0xffffffff)
Jun 9 22:01:24 work obexd[18062]: DISCONNECT(0x1), SUCCESS(0x20)
Jun 9 22:01:24 work obexd[18062]: disconnected: Transport got disconnected
Jun 9 22:01:24 work bluetoothd[17556]: Unable to get io data for Object Push: getpeername: Transport endpoint is not connected (107)

[Sebastien Bacher (seb128)]

Thank you for your bug report, what's the output of 'bluetoothctl'

[Sebastien Bacher (seb128)]

sorry that's included in the description

[Sebastien Bacher (seb128)]

Could you include the journalctl log from around the time of the issue? Also start 'G_DEBUG_MESSAGES=all gnome-control-center bluetooth' from a command line and see what info are printed?

[Launchpad Janitor (janitor)]

[Expired for gnome-control-center (Ubuntu) because there has been no activity for 60 days.]

[Rolf Leggewie (r0lf)]

I was swamped with other stuff and wasn't able to respond in time. I'll try catch, post the required information and then reopen.

[Rolf Leggewie (r0lf)]

Thank you for helping to triage and sorry for the late response. I no longer have as much time for Launchpad as I used to.

Here are the last few lines from journalctl. I hope they mean something to you.

Mar 23 03:26:35 work sudo[22956]: pam_unix(sudo:session): session closed for user root
Mar 23 03:27:00 work unity-scope-loa[10494]: daemon.vala:679: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.zeitgeist.Engine was not provided by any .service files
Mar 23 03:27:05 work compiz[2115]: ERROR 2019-03-23 03:27:05 unityfree <unknown>:0 g_sequence_get: assertion '!is_end (iter)' failed
Mar 23 03:27:05 work compiz[2115]: ERROR 2019-03-23 03:27:05 unity null <unknown>:0 Unable to get value. NULL row data in DeeSequenceModel@0x562b2e019ea0 at position 1. The row has probably been removed
Mar 23 03:27:05 work compiz[2115]: ERROR 2019-03-23 03:27:05 unity null <unknown>:0 Unable to get string. Column 5 in DeeSequenceModel@0x562b2e019ea0 holds a NULL value in row 1
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_type: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_unref: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_type: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_unref: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_type: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_unref: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_type: assertion 'value != NULL' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
Mar 23 03:27:11 work gnome-control-c[22988]: g_variant_unref: assertion 'value != NULL' failed
Mar 23 03:27:12 work kernel: Bluetooth: hci0: last event is not cmd complete (0x0f)

And here is the CLI output you requested.

$ G_DEBUG_MESSAGES=all gnome-control-center bluetooth

(gnome-control-center:23143): GLib-CRITICAL **: 03:31:11.558: g_variant_get_type: assertion 'value != NULL' failed

(gnome-control-center:23143): GLib-CRITICAL **: ...