New: rtl8822cu device : "Bluetooth : No device found"

Bug 210453 [email protected] 1 participant 3 messages Dec 2, 2020 – Dec 18, 2020 Bluetooth drivers

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[email protected]

author

2020-12-02 13:46 UTC #0 lore raw

https://bugzilla.kernel.org/show_bug.cgi?id=210453

Bug ID: 210453
Summary: rtl8822cu device : "Bluetooth : No device found"
Product: Drivers
Version: 2.5
Kernel Version: 5.9.12 mainline
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Bluetooth
Assignee: [email protected]
Reporter: [email protected]
Regression: No

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

I'm new here, so let me know what attachment you need.

Thank you.

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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author

2020-12-05 18:41 UTC #1 lore raw

[Bug 210453] rtl8822cu device : "Bluetooth : No device found"

https://bugzilla.kernel.org/show_bug.cgi?id=210453

--- Comment #1 from Olivier V ([email protected]) --- Something about patches here :
http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=138556

But I don't understand how to do something with this.

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author

2020-12-18 11:43 UTC #2 lore raw

[Bug 210453] rtl8822cu device : "Bluetooth : No device found"

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=210453

--- Comment #2 from Olivier V ([email protected]) ---
As asked here https://bugs.launchpad.net/ubuntu/+s...x/+bug/1906515 I've done a git bisect.

Here is the answer :

meloli@Asus-A17:~/Bureau/meloli/GITBISECT/linux$ git bisect bad
b2cc23398e8166b38f8715026273503b081c2a7a is the first bad commit
commit b2cc23398e8166b38f8715026273503b081c2a7a
Author: Sathish Narasimman <[email protected]>
Date:   Thu Jul 23 18:09:02 2020 +0530

Bluetooth: Enable RPA Timeout

Enable RPA timeout during bluetooth initialization. The RPA timeout value is used from hdev, which initialized from debug_fs

Signed-off-by Sathish Narasimman <[email protected]>

Signed-off-by Marcel Holtmann <[email protected]>

 include/net/bluetooth/hci.h | 2 ++
 net/bluetooth/hci_core.c    | 8 ++++++++
 2 files changed, 10 insertions(+)

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