Hello all
The title says it: "Connecting to Bluetooth Amplifier not working".

Running Manjaro 20.x KDE latest with Kernel 5.6.8.1 and Plasma 5.18.4.

I cannot pair my amp to my laptop. Pairing with my phone works fine, but not on my laptop.

I have tried on the Manjaro forum, to no avail. So, here I am.

Here is some more information:

Amp: s.m.s.l SA-36A plus

Bluetooth:
[fintan2@fred-hppaviliondv6notebookpc ~]$ sudo dmesg | grep -i blue
[sudo] password for fintan2:
[ 5.599892] Bluetooth: Core ver 2.22
[ 5.599910] Bluetooth: HCI device and connection manager initialized
[ 5.599915] Bluetooth: HCI socket layer initialized
[ 5.599916] Bluetooth: L2CAP socket layer initialized
[ 5.599920] Bluetooth: SCO socket layer initialized
[ 5.684189] Bluetooth: hci0: unexpected event for opcode 0x0000
[ 5.720003] audit: type=1130 audit(1588583145.096:38): 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'
[ 5.732232] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 5.732234] Bluetooth: BNEP filters: protocol multicast
[ 5.732239] Bluetooth: BNEP socket layer initialized
[ 191.474578] Bluetooth: RFCOMM TTY layer initialized
[ 191.474585] Bluetooth: RFCOMM socket layer initialized
[ 191.474593] Bluetooth: RFCOMM ver 1.11
[ 222.939133] audit: type=1131 audit(1588583362.316:87): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=blueman-mechanism comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[fintan2@fred-hppaviliondv6notebookpc ~]$

[fintan2@fred-hppaviliondv6notebookpc ~]$ sudo systemctl status bluetooth -l
[sudo] password for fintan2:
● bluetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2020-05-04 11:05:45 CEST; 31min ago
Docs: man:bluetoothd(8)
Main PID: 914 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 19132)
Memory: 3.2M
CGroup: /system.slice/bluetooth.service
└─914 /usr/lib/bluetooth/bluetoothd

May 04 11:05:45 fred-hppaviliondv6notebookpc bluetoothd[914]: Bluetooth daemon 5.54
May 04 11:05:45 fred-hppaviliondv6notebookpc systemd[1]: Started Bluetooth service.
May 04 11:05:45 fred-hppaviliondv6notebookpc bluetoothd[914]: Starting SDP server
May 04 11:05:45 fred-hppaviliondv6notebookpc bluetoothd[914]: Bluetooth management interface 1.14 initialized
May 04 11:08:50 fred-hppaviliondv6notebookpc bluetoothd[914]: Endpoint registered: sender=:1.76 path=/MediaEndpoint/A2DPSink>
May 04 11:08:50 fred-hppaviliondv6notebookpc bluetoothd[914]: Endpoint registered: sender=:1.76 path=/MediaEndpoint/A2DPSour>
May 04 11:08:51 fred-hppaviliondv6notebookpc bluetoothd[914]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: A>
May 04 11:08:51 fred-hppaviliondv6notebookpc bluetoothd[914]: RFCOMM server failed for :1.103/Profile/HSPHS/00001108-0000-10>
May 04 11:08:51 fred-hppaviliondv6notebookpc bluetoothd[914]: Endpoint registered: sender=:1.103 path=/A2DP/SBC/Source/0
May 04 11:08:51 fred-hppaviliondv6notebookpc bluetoothd[914]: Endpoint registered: sender=:1.103 path=/A2DP/SBC/Sink/1
lines 1-21/21 (END)

[fintan2@fred-hppaviliondv6notebookpc ~]$ lsusb
Bus 002 Device 004: ID 148f:2000 Ralink Technology, Corp.
Bus 002 Device 003: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 5986:02ac Acer, Inc
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[fintan2@fred-hppaviliondv6notebookpc ~]$


Pulseaudi-bluetooth:

[fintan2@fred-hppaviliondv6notebookpc ~]$ sudo pacman -Qi pulseaudio-bluetooth
[sudo] password for fintan2:
Name : pulseaudio-bluetooth
Version : 13.0-3
Description : Bluetooth support for PulseAudio
Architecture : x86_64
URL : https://www.freedesktop.org/wiki/Software/PulseAudio/
Licenses : GPL
Groups : None
Provides : None
Depends On : pulseaudio=13.0-3 bluez bluez-libs sbc
Optional Deps : None
Required By : gnome-bluetooth
Optional For : blueman
Conflicts With : None
Replaces : None
Installed Size : 196.30 KiB
Packager : Jan Alexander Steffens (heftig) jan.steffens@gmail.com
Build Date : Sat Jan 11 19:25:37 2020
Install Date : Tue Mar 3 11:31:57 2020
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature

Also:

[fintan2@fred-hppaviliondv6notebookpc ~]$ sudo hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: C0:F8:DA:B2:65:C3 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING PSCAN ISCAN
RX bytes:1076 acl:0 sco:0 events:55 errors:0
TX bytes:965 acl:0 sco:0 commands:54 errors:0
Features: 0xff 0xff 0x8f 0xfe 0x9b 0xff 0x59 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Name: 'FintanPC1'
Class: 0x7e010c
Service Classes: Networking, Rendering, Capturing, Object Transfer, Audio, Telephony
Device Class: Computer, Laptop
HCI Version: 3.0 (0x5) Revision: 0x1aa1
LMP Version: 3.0 (0x5) Subversion: 0x1aa1
Manufacturer: Cambridge Silicon Radio (10)

This indicates that I have BT version 3.0

Here is my Amp


Not sure if this is important:

[fintan2@fred-hppaviliondv6notebookpc ~]$ sudo pacman -Qqdt
[sudo] password for fintan2:
bluez-tools
boost
gendesk
gnome-bluetooth
lv2
python-setproctitle
w3m
xapps
[fintan2@fred-hppaviliondv6notebookpc ~]$

Can I safely remove any of these?


I would greatly appreciate ANY assistance.

Thank you all and stay safe.