Comment 91 for bug 1859592

I have this issue after suspend/resume on Ubuntu 20.04 LTS, kernel 5.15.0, Dell Precision 5540 with an Intel Core i9-9980HK processor.

lsusb shows the device:
Bus 001 Device 025: ID 8087:0029 Intel Corp

Which is an Intel AX200 Bluetooth wireless chip.

Suspending and resuming my laptop once more fixes the issue. No need to cold reboot. Here is the Bluetooth dmesg output from this morning's suspend/resume cycles:

[58674.253723] Bluetooth: hci0: command 0xfc05 tx timeout
[58674.253724] Bluetooth: hci0: Reading Intel version command failed (-110)
[58795.067813] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017
[58795.068737] Bluetooth: hci0: Device revision is 1
[58795.068739] Bluetooth: hci0: Secure boot is enabled
[58795.068740] Bluetooth: hci0: OTP lock is enabled
[58795.068741] Bluetooth: hci0: API lock is enabled
[58795.068741] Bluetooth: hci0: Debug lock is disabled
[58795.068742] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[58795.068952] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[58796.844050] Bluetooth: hci0: Waiting for firmware download to complete
[58796.844645] Bluetooth: hci0: Firmware loaded in 1734054 usecs
[58796.844836] Bluetooth: hci0: Waiting for device to boot
[58796.859635] Bluetooth: hci0: Device booted in 14567 usecs
[58796.859721] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-20-1-3.ddc
[58796.861740] Bluetooth: hci0: Applying Intel DDC parameters completed
[58796.864875] Bluetooth: hci0: Firmware revision 0.0 build 121 week 36 2020
[58796.924662] Bluetooth: hci0: MSFT filter_enable is already on