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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1906515
Title:
Bluetooth : No device found (rtl8822cu)
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi,
The bluetooth with device rtl8822cu does not work with 5.9.12 mainline
kernel (and all 5.9 kernel).
Before it worked fine with 5.8.0 mainline kernel.
A similar problem was solved for rl8822ce in 5.9.11 kernel by arch.
Discussion here : https://bbs.archlinux.org/viewtopic.php?pid=1940003#p1940003
meloli@Asus-A17:~$ sudo dmesg | grep -i bluetooth
[ 1.476073] usb 5-1: Product: Bluetooth Radio
[ 3.977975] Bluetooth: Core ver 2.22
[ 3.978022] Bluetooth: HCI device and connection manager initialized
[ 3.978030] Bluetooth: HCI socket layer initialized
[ 3.978035] Bluetooth: L2CAP socket layer initialized
[ 3.978043] Bluetooth: SCO socket layer initialized
[ 4.002039] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000c
lmp_ver=0a lmp_subver=8822
[ 4.003996] Bluetooth: hci0: RTL: rom_version status=0 version=3
[ 4.004001] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_fw.bin
[ 4.006885] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_config.bin
[ 4.007705] Bluetooth: hci0: RTL: cfg_sz 6, total sz 31422
[ 4.283989] Bluetooth: hci0: RTL: fw version 0x09993aa1
[ 4.933204] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.933207] Bluetooth: BNEP filters: protocol multicast
[ 4.933214] Bluetooth: BNEP socket layer initialized
[ 1422.650815] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000c
lmp_ver=0a lmp_subver=8822
[ 1422.652695] Bluetooth: hci0: RTL: rom_version status=0 version=3
[ 1422.652725] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_fw.bin
[ 1422.652877] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_config.bin
[ 1422.653058] Bluetooth: hci0: RTL: cfg_sz 6, total sz 31422
[ 1422.931399] Bluetooth: hci0: RTL: fw version 0x09993aa1
[ 1632.862056] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=0999
lmp_ver=0a lmp_subver=3aa1
[ 1632.862064] Bluetooth: hci0: RTL: unknown IC info, lmp subver 3aa1, hci
rev 0999, hci ver 000a
[ 1632.862065] Bluetooth: hci0: RTL: assuming no firmware upload needed
meloli@Asus-A17:~$ lsmod|grep blue
bluetooth 647168 12 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
meloli@Asus-A17:~$ lsusb
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 002: ID 13d3:3548 IMC Networks Bluetooth Radio
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0951:1666 Kingston Technology DataTraveler 100
G3/G4/SE9 G2
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 13d3:56a2 IMC Networks USB2.0 HD UVC WebCam
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
meloli@Asus-A17:~$ rfkill list all
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-09-18 (75 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
Tags: focal
Uname: Linux 5.9.12-050912-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lp lpadmin lxd plugdev sambashare sudo vboxusers
_MarkForUpload: True
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