Questions[bluetooth](ubuntu)

This is on a machine I upgraded from 18.04 to 20.04 a few days ago. No issues at all getting sound to play out of headphones on 18.04.

The headphones are paired with Bluetooth. I unpaired and repaired them just to be sure. The settings panel for sound has them as an output option and I can select it without issue. However, no sound ever comes out of the headphones. I've even adjusted the volume both in the settings panel, in alsamixer and in pavucontrol. Nothing changes.

I see no errors in the bluetooth service log.

Output of:

{ sudo lshw | grep product | head -n1 && sudo lspci -knn | grep Net -A3 && lsusb -v; } >output.txt 2>&1

https://pastebin.com/VJ5EQcFb

I've installed Ubuntu 20.04 and bluetooth is not working for me. But it works in a live session if I boot that from USB. Can anyone help me please?

systemctl | grep -i blue output:

  sys-devices-pci0000:00-0000:00:14.0-usb1-1\x2d14-1\x2d14:1.0-bluetooth-hci0.device        loaded active     plugged   /sys/devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0     
  sys-subsystem-bluetooth-devices-hci0.device                                               loaded active     plugged   /sys/subsystem/bluetooth/devices/hci0                                      
  bluetooth.service                                                                         loaded active     running   Bluetooth service                                                          
  bluetooth.target                                                                          loaded active     active    Bluetooth    

dmesg | grep -i blue output:

[    2.309059] Bluetooth: Core ver 2.22
[    2.309071] Bluetooth: HCI device and connection manager initialized
[    2.309073] Bluetooth: HCI socket layer initialized
[    2.309074] Bluetooth: L2CAP socket layer initialized
[    2.309076] Bluetooth: SCO socket layer initialized
[    3.413708] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    3.413710] Bluetooth: BNEP filters: protocol multicast
[    3.413713] Bluetooth: BNEP socket layer initialized
[    4.342171] Bluetooth: hci0: command 0xfc05 tx timeout
[    4.342173] Bluetooth: hci0: Reading Intel version information failed (-110)
[  193.048690] Bluetooth: hci0: command 0xfc05 tx timeout
[  193.048749] Bluetooth: hci0: Reading Intel version information failed (-110)

lspci output:

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 10)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
00:1d.5 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #14 (rev f0)
00:1d.6 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #15 (rev f0)
00:1f.0 ISA bridge: Intel Corporation HM470 Chipset LPC/eSPI Controller (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 3 GB Max-Q] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
02:00.0 Non-Volatile memory controller: Phison Electronics Corporation Device 5008 (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 16)
04:00.0 Unassigned class [ff00]: Alcor Micro AU6625 PCI-E Flash card reader controller

lspci -k -s 00:14.3 output:

00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10)
    DeviceName: WLAN
    Subsystem: Intel Corporation Wireless-AC 9560 [Jefferson Peak]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi

bluetoothctl:

[bluetooth]# list
[bluetooth]# power on
No default controller available

rfkill list all output:

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

lsusb output:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 04f2:b627 Chicony Electronics Co., Ltd HP Wide Vision HD Camera
Bus 001 Device 003: ID 8087:0aaa Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I have a CEL-TEC F5A headset. The spec says:

Bluetooth 4.0, profiles: Headset, Hands free, A2DP, AVRCP/HSP/HFP

It plays nicely with High Fidelity Playback (A2DP sink) profile.

When I want to switch audio input to the headset's microphone, the output profile automatically changes to Headset Head Unit (HFS/HFP) and the quality is terrible - like 8bit sound or something. When I switch it back to A2DP, the input is back to desktop mic.

I've read few of other questions and seems A2DP is expected not to support input, right? But the HFP part in HFS/HFP is High Fidelity Playback I guess? That sounds like it could work as a headset and still not sound like 1950's phone.

How could I simplify switching between the profiles so that it is HFS/HFP when I talk and A2DP when I listen? E.g. as a push-to-talk.

Ubuntu 17.10, no sound customization IIRC, everything latest.
https://www.kabelmanie.cz/cel-tec-f5a-active-noise-bluetooth-stereo-sluchatka-s-mikrofonem/

My output:

$ pactl list cards
Card #0
        Name: alsa_card.pci-0000_00_03.0
...

Card #4
        Name: bluez_card.00_19_5D_25_6F_6C
        Driver: module-bluez5-device.c
        Owner Module: 30
        Properties:
                device.description = "F5A"
                device.string = "00:19:5D:25:6F:6C"
                device.api = "bluez"
                device.class = "sound"
                device.bus = "bluetooth"
                device.form_factor = "headset"
                bluez.path = "/org/bluez/hci0/dev_00_19_5D_25_6F_6C"
                bluez.class = "0x240404"
                bluez.alias = "F5A"
                device.icon_name = "audio-headset-bluetooth"
                device.intended_roles = "phone"
        Profiles:
                a2dp_sink: High Fidelity Playback (A2DP Sink) (sinks: 1, sources: 0, priority: 10, available: yes)
                headset_head_unit: Headset Head Unit (HSP/HFP) (sinks: 1, sources: 1, priority: 20, available: yes)
                off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
        Active Profile: a2dp_sink
        Ports:
                headset-output: Headset (priority: 0, latency offset: 0 usec, available)
                        Part of profile(s): a2dp_sink, headset_head_unit
                headset-input: Headset (priority: 0, latency offset: 0 usec)
                        Part of profile(s): headset_head_unit

The problem here is not that the microphone does not work, but rather that the audio quality worsens when it is activated.

I have a problem when I send my files from phone to ubuntu 12.04 via bluetooth as the phone prompts with the message "the file not sent"! I can send any files from ubuntu 12.04 to my android phone.

I just can't figure a way to change my Bluetooth device name.

Is there any command?