BT powering off when pairing or connecting

General system
#1

Hello people,
reproduced the following problem on Plasma 5.17 and XFCE 4.14, both on Endeavour and Manjaro, on Kernel 5.7 and 5.6. Not reproducable on MXLinux live-session so I guess it’s something Arch-related.

The issue: Bluetooth adapter and available devices are shown properly in GUI (in blueman, blueberry and bluedevil) as well as in bluetoothctl scan on. When I try to pair, the adapter shuts off for 2-3 seconds, saying no adapter found and then powers on again. Same behaviour when using bluetoothctl pair/connect in terminal.

Any suggestion is appreciated.
Best,
cpt

lspci

01:00.0 Ethernet controller: Qualcomm Atheros QCA8171 Gigabit Ethernet (rev 13)
01:00.1 SD Host controller: Qualcomm Atheros Device 3010 (rev 13)
05:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

sudo lsmod |grep blue 

bluetooth             716800  44 btrtl,btintel,btbcm,bnep,ath3k,btusb,rfcomm
ecdh_generic           16384  2 bluetooth
rfkill                 28672  10 acer_wmi,bluetooth,cfg80211
crc16                  16384  2 bluetooth,ext4

pactl list short | grep blue

9       module-bluetooth-policy
10      module-bluetooth-discover
11      module-bluez5-discover

hciconfig -a

hci0:   Type: Primary  Bus: USB
        BD Address: 40:F0:2F:66:86:0A  ACL MTU: 1022:8  SCO MTU: 183:5
        UP RUNNING PSCAN ISCAN 
        RX bytes:1956 acl:0 sco:0 events:108 errors:0
        TX bytes:6124 acl:0 sco:0 commands:108 errors:0
        Features: 0xff 0xfe 0x0d 0xfe 0xd8 0x7f 0x7b 0x8f
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
        Link policy: RSWITCH HOLD SNIFF 
        Link mode: SLAVE ACCEPT 
        Name: 'plasma'
        Class: 0x7c010c
        Service Classes: Rendering, Capturing, Object Transfer, Audio, Telephony
        Device Class: Computer, Laptop
        HCI Version: 4.1 (0x7)  Revision: 0x3101
        LMP Version: 4.1 (0x7)  Subversion: 0x1
        Manufacturer: Atheros Communications, Inc. (69)
#2

Hello @cpt
Did you follow the wiki?

Also have a look at the Arch wiki.

https://wiki.archlinux.org/index.php/Bluetooth#Installation

#3

I did. Installed Arch-based system a few times in the past, never ran into that problem. I tried the whole trouble shooting go through without success.

#4

Did you look at journalctl?

#5 
journalctl | grep -i bluetooth

Jul 04 16:33:03 plasma systemd[1]: Starting Bluetooth service...
Jul 04 16:33:03 plasma bluetoothd[10714]: Bluetooth daemon 5.54
Jul 04 16:33:03 plasma systemd[1]: Started Bluetooth service.
Jul 04 16:33:03 plasma audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jul 04 16:33:03 plasma kernel: audit: type=1130 audit(1593873183.128:229): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jul 04 16:33:03 plasma bluetoothd[10714]: Starting SDP server
Jul 04 16:33:03 plasma dbus-daemon[786]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.1809' (uid=0 pid=10714 comm="/usr/lib/bluetooth/bluetoothd " label="unconfined")
Jul 04 16:33:03 plasma bluetoothd[10714]: Bluetooth management interface 1.16 initialized
Jul 04 16:33:03 plasma kded5[1241]: bluedevil: Bluetooth operational changed true
Jul 04 16:33:03 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:03 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:03 plasma bluetoothd[10714]: Endpoint registered: sender=:1.47 path=/MediaEndpoint/A2DPSink/sbc
Jul 04 16:33:03 plasma bluetoothd[10714]: Endpoint registered: sender=:1.47 path=/MediaEndpoint/A2DPSource/sbc
Jul 04 16:33:03 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:16 plasma bluetoothd[10714]: 34:DF:2A:32:30:BB: error updating services: Software caused connection abort (103)
Jul 04 16:33:16 plasma systemd[1167]: Stopped target Bluetooth.
Jul 04 16:33:16 plasma systemd[1]: Stopped target Bluetooth.
Jul 04 16:33:16 plasma bluetoothd[10714]: Endpoint unregistered: sender=:1.47 path=/MediaEndpoint/A2DPSink/sbc
Jul 04 16:33:16 plasma bluetoothd[10714]: Endpoint unregistered: sender=:1.47 path=/MediaEndpoint/A2DPSource/sbc
Jul 04 16:33:16 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:16 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:16 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:22 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:22 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined
Jul 04 16:33:22 plasma bluetoothd[10714]: Endpoint registered: sender=:1.47 path=/MediaEndpoint/A2DPSink/sbc
Jul 04 16:33:22 plasma bluetoothd[10714]: Endpoint registered: sender=:1.47 path=/MediaEndpoint/A2DPSource/sbc
Jul 04 16:33:22 plasma plasmashell[1326]: file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36: TypeError: Cannot read property 'devices' of undefined

I don’t know how to interpret this.

#6

I see the error messages. Have you have these same devices paired before on a different system?

#7

Do you also have wifi?

#8

yes, on Mx in live session it worked without a problem

#9

yes, no issues there

#10

What wifi chip is it?

#11 
lspci | grep -i wireless

05:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
#12

You said you have already gone through troubleshooting. Might have to keep looking at some more entries and looking for answers.

#13

@cpt
Have you tried manually checking and removing any pairing and then try to re-pare the devices.

bluetoothctl

remove aa:bb:cc:dd:ee:ff

#14

yes, without an luck.

when I remove a device now, and try to repair in bluetoothctl, the following shows up:

[bluetooth]# pair 34:DF:2A:32:30:BB
Attempting to pair with 34:DF:2A:32:30:BB
Failed to pair: org.bluez.Error.AuthenticationFailed
[CHG] Controller 40:F0:2F:66:86:0A Class: 0x00000000
[CHG] Controller 40:F0:2F:66:86:0A Powered: no
[CHG] Controller 40:F0:2F:66:86:0A Discovering: no
[DEL] Device 18:F0:E4:2C:A3:83 Xiaomi Redmi 4X
[DEL] Device 34:DF:2A:32:30:BB Teufel MUTE BT
[DEL] Device 60:AB:67:44:62:CF Redmi
[DEL] Device F4:F9:51:E1:EA:6E F4-F9-51-E1-EA-6E
[DEL] Controller 40:F0:2F:66:86:0A plasma [default]
[NEW] Controller 40:F0:2F:66:86:0A plasma [default]
[NEW] Device 18:F0:E4:2C:A3:83 Xiaomi Redmi 4X
[NEW] Device 34:DF:2A:32:30:BB Teufel MUTE BT
[CHG] Controller 40:F0:2F:66:86:0A Powered: yes
[CHG] Controller 40:F0:2F:66:86:0A Alias: plasma
[CHG] Controller 40:F0:2F:66:86:0A Class: 0x0000010c
#15

sudo systemctl status bluetooth

#16 
sudo systemctl status bluetooth

● bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; disabled>
     Active: active (running) since Sat 2020-07-04 17:03:53 CEST; 46min >
       Docs: man:bluetoothd(8)
   Main PID: 11396 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 6449)
     Memory: 1.6M
     CGroup: /system.slice/bluetooth.service
             └─11396 /usr/lib/bluetooth/bluetoothd

Jul 04 17:25:31 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
Jul 04 17:25:31 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
Jul 04 17:26:59 plasma bluetoothd[11396]: Endpoint unregistered: sender=>
Jul 04 17:26:59 plasma bluetoothd[11396]: Endpoint unregistered: sender=>
Jul 04 17:27:05 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
Jul 04 17:27:05 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
Jul 04 17:28:13 plasma bluetoothd[11396]: Endpoint unregistered: sender=>
Jul 04 17:28:13 plasma bluetoothd[11396]: Endpoint unregistered: sender=>
Jul 04 17:28:19 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
Jul 04 17:28:19 plasma bluetoothd[11396]: Endpoint registered: sender=:1>
lines 1-21/21 (END)
#17

Did you check?

rfkill list

#18 
rfkill list
0: acer-wireless: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
16: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
#19 
dmesg | grep blue
#20 
dmesg | grep blue
[   28.952028] audit: type=1130 audit(1593866285.558:46): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 6917.136469] audit: type=1131 audit(1593873173.745:226): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 6926.522437] audit: type=1130 audit(1593873183.128:229): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 8747.408878] audit: type=1131 audit(1593875004.015:253): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 8777.304431] audit: type=1130 audit(1593875033.912:256): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=bluetooth comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'