Bluetooth and my Kubuntu 24.04.1 installation don't seem to get along.
I have one of those bluetooth stereo speaker boxes that I use with the
system sometimes. It can be used as a speaker that works with a phone,
or with the computer or phone. The problem is that when I boot the
machine and try to connect to those speakers, it connects using one of
the codecs that's meant to be used with a phone. In that mode, the
sound is mono and sounds like it's being played back over a phone.
Obviously not desirable for listening to music. When I open
blueman-manager, the following audio profiles are available:
off
headset head unit (HSP/HFP)
Headset Head Unit (HSP/HFP, codec CVSD)
Headset Head Unit (HSP/HFP, codec mSBC)
After I go through the procedure I've worked out, it connects in high
fidelity mode with the following options available under audio profile
in blueman-manager. The X is next to the one it's using.
off
headset head unit (HSP/HFP)
High Fidelity Playback (A2DP Sink Codec SBC)
X High Fidelity Playback (A2DP Sink Codec SBC SBC-XQ)
Headset Head Unit (HSP/HFP, codec CVSD)
Headset Head Unit (HSP/HFP, codec mSBC)
Here's what I have to do to use the high fidelity mode.
Unplug the bluetooth dongle
Restart bluetooth
Plug in dongle
Launch blueman manager then search for speaker, then connect to it.
The problem isn't limited to one bluetooth dongle or the speakers I
have. I've used other bluetooth dongles and other speakers but the
problem still persists.
Here's what hciconfig shows.
hci0: Type: Primary Bus: USB
BD Address: 08:BE:AC:32:79:8D ACL MTU: 1021:6 SCO MTU: 255:12
UP RUNNING
RX bytes:911592 acl:194 sco:0 events:128617 errors:0
TX bytes:65920621 acl:125374 sco:0 commands:3234 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: PERIPHERAL ACCEPT
Name: 'ladmo'
Class: 0x7c0104
Service Classes: Rendering, Capturing, Object Transfer, Audio,
Telephony
Device Class: Computer, Desktop workstation
HCI Version: 5.1 (0xa) Revision: 0xdfc6
LMP Version: 5.1 (0xa) Subversion: 0xd922
Manufacturer: Realtek Semiconductor Corporation (93)
Is there some way I can fix this. If I can't get this fixed,
eventually I'll get an FM transmitter good for covering the yard, plug
it into the system and take a radio outside.
Thanks to anyone that can help me get this fixed.
Jim
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