blueman bluez bluez-firmware bluez-tools firmware-realtek are installed. Any help is welcome.
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$ uname -a
Linux tuf 5.9.0-5-amd64 #1 SMP Debian 5.9.15-1 (2020-12-17) x86_64 GNU/Linux
$ sudo dmesg | grep -i bluetooth
[ 1.579004] usb 5-1: Product: Bluetooth Radio
[ 2.701323] Bluetooth: Core ver 2.22
[ 2.701341] Bluetooth: HCI device and connection manager initialized
[ 2.701346] Bluetooth: HCI socket layer initialized
[ 2.701348] Bluetooth: L2CAP socket layer initialized
[ 2.701352] Bluetooth: SCO socket layer initialized
[ 2.708998] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000c lmp_ver=0a lmp_subver=8822
[ 2.711028] Bluetooth: hci0: RTL: rom_version status=0 version=3
[ 2.711032] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_fw.bin
[ 2.711557] bluetooth hci0: firmware: direct-loading firmware rtl_bt/rtl8822cu_fw.bin
[ 2.711580] Bluetooth: hci0: RTL: loading rtl_bt/rtl8822cu_config.bin
[ 2.711602] bluetooth hci0: firmware: failed to load rtl_bt/rtl8822cu_config.bin (-2)
[ 2.714700] bluetooth hci0: Direct firmware load for rtl_bt/rtl8822cu_config.bin failed with error -2
[ 2.714711] Bluetooth: hci0: RTL: cfg_sz -2, total sz 31416
[ 2.788313] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 2.788316] Bluetooth: BNEP filters: protocol multicast
[ 2.788321] Bluetooth: BNEP socket layer initialized
[ 2.993333] Bluetooth: hci0: RTL: fw version 0x09993aa1
$ sudo rfkill list
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
$ hcitool dev
Devices:
$ lsmod | grep blue
bluetooth 729088 12 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
libaes 16384 3 bluetooth,aesni_intel,aes_generic
rfkill 28672 7 asus_wmi,bluetooth,cfg80211
crc16 16384 2 bluetooth,ext4
