[Bug 201363] RTL8822BE Bluetooth not detected on Lenovo A485

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201363

--- Comment #1 from Samantha McVey (samantham@posteo.net) ---
Created attachment 279011
  --> https://bugzilla.kernel.org/attachment.cgi?id=279011&action=edit
dmesg with bluetooth

Update: I have extracted Lenovo's RTL8822BE wifi and bluetooth firmware from
their Windows driver packages and gotten the bluetooth partially working. It
works if the system is up to sleep and then woken up again, though it doesn't
work when the system is booted up for the first time.

lsusb info:
Bus 004 Device 008: ID 0bda:b023 Realtek Semiconductor Corp.

I am hosting the firmware here https://github.com/samcv/A485-RTL8822BE-firmware
which has detail about how I extracted the firmware so I will only repost
relevant info here.

So there is still an issue loading firmware at boot, which hopefully  makes
this issue easier to solve.

Here is new dmesg | grep -Ei 'blue|8822|rtlwifi' output (full log is attached)

[    6.101343] usb 4-2.2: Product: Bluetooth Radio 
[   17.740697] r8822be: module is from the staging directory, the quality is
unknown, you have been warned.
[   17.745603] Bluetooth: Core ver 2.22
[   17.745605] Bluetooth: Starting self testing
[   17.745607] Bluetooth: Finished self testing
[   17.746180] Bluetooth: HCI device and connection manager initialized
[   17.746185] Bluetooth: HCI socket layer initialized
[   17.746188] Bluetooth: L2CAP socket layer initialized
[   17.746202] Bluetooth: SCO socket layer initialized
[   17.749597] r8822be 0000:02:00.0: enabling device (0000 -> 0003)
[   17.765897] r8822be: Using firmware rtlwifi/rtl8822befw.bin
[   17.771715] r8822be: rtlwifi: wireless switch is on
[   17.937819] r8822be 0000:02:00.0 wlp2s0: renamed from wlan0
[   18.838828] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   18.838831] Bluetooth: BNEP filters: protocol multicast
[   18.838837] Bluetooth: BNEP socket layer initialized
[   19.761568] Bluetooth: hci0: command 0x1001 tx timeout
[   27.761615] Bluetooth: hci0: RTL: HCI_OP_READ_LOCAL_VERSION failed (-110)
** Laptop goes to sleep here **
[  110.129904] r8822be: rtlwifi: wireless switch is on
[  111.619279] usb 4-2.2: Product: Bluetooth Radio 
[  111.973924] Bluetooth: hci0: RTL: rtl: examining hci_ver=07 hci_rev=000b
lmp_ver=07 lmp_subver=8822
[  111.975921] Bluetooth: hci0: RTL: rom_version status=0 version=2
[  111.975923] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8822b_fw.bin
[  111.977304] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8822b_config.bin
[  111.977829] Bluetooth: hci0: RTL: cfg_sz 14, total sz 24066

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