Bluetooth does not work

[Joel Winarske]

[625347.017671] usb 1-1.4: Product: Bluetooth Radio
[625347.039793] Bluetooth: Core ver 2.22
[625347.039819] Bluetooth: HCI device and connection manager initialized
[625347.039822] Bluetooth: HCI socket layer initialized
[625347.039824] Bluetooth: L2CAP socket layer initialized
[625347.039829] Bluetooth: SCO socket layer initialized
[625347.047141] Bluetooth: hci0: rtl: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[625347.047142] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_config.bin
[625347.047360] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
[625347.047362] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_fw.bin
[625347.049134] Bluetooth: hci0: rom_version status=0 version=1
[625347.049140] Bluetooth: hci0: cfg_sz 0, total size 20204
[625347.147059] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[625347.147060] Bluetooth: BNEP filters: protocol multicast
[625347.147062] Bluetooth: BNEP socket layer initialized
[625349.156276] Bluetooth: hci0: command 0xfc20 tx timeout
[625357.380082] Bluetooth: hci0: download fw command failed (-110)
[625562.330711] Bluetooth: RFCOMM TTY layer initialized
[625562.330717] Bluetooth: RFCOMM socket layer initialized
[625562.330722] Bluetooth: RFCOMM ver 1.11

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-122-generic 4.15.0-122.124
ProcVersionSignature: Ubuntu 4.15.0-122.124-generic 4.15.18
Uname: Linux 4.15.0-122-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.19
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: joel 2276 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 8 18:56:36 2020
InstallationDate: Installed on 2018-12-08 (702 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: Hewlett-Packard HP Z220 SFF Workstation
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-122-generic root=UUID=7af66fb9-8488-4a45-a134-214f705e35d5 ro quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-122-generic N/A
 linux-backports-modules-4.15.0-122-generic N/A
 linux-firmware 1.173.19
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/21/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: K51 v01.80
dmi.board.name: 1791
dmi.board.vendor: Hewlett-Packard
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrK51v01.80:bd10/21/2014:svnHewlett-Packard:pnHPZ220SFFWorkstation:pvr:rvnHewlett-Packard:rn1791:rvr:cvnHewlett-Packard:ct4:cvr:
dmi.product.family: 103C_53335X G=D
dmi.product.name: HP Z220 SFF Workstation
dmi.sys.vendor: Hewlett-Packard

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

Is it a dongle? Does it work if it's plugged pre-boot?

[Robin Windey (r0wi)]

For me it's a dongle (https://www.amazon.de/Mpow-Bluetooth-Empf%C3%A4nger-Lautsprecher-kompatibel/dp/B087JRFGV7?pd_rd_w=YmEc6&pf_rd_p=8d2a1a06-f0ba-4603-bd06-75edf607bd62&pf_rd_r=7PQ125F33S6FJFDZX9SK&pd_rd_r=4484adca-29c6-4c15-b00d-b94cc61893bb&pd_rd_wg=rSu7g&pd_rd_i=B087JRFGV7&ref_=pd_bap_m_rp_1_sc) and it's always plugged in pre-boot. Also removing and plugging it in again doesn't help.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]