Bluetooth : No device found (rtl8822cu)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Unknown
|
Unknown
|
|||
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
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:/
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/
[ 4.006885] Bluetooth: hci0: RTL: loading rtl_bt/
[ 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/
[ 1422.652877] Bluetooth: hci0: RTL: loading rtl_bt/
[ 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,
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-
Architecture: amd64
CasperMD5CheckR
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)
NonfreeKernelMo
Package: linux (not installed)
Tags: focal
Uname: Linux 5.9.12-
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
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1906515
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.