[Bug 213829] Intel AX210 Bluetooth controller doesn't start from warm boot

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https://bugzilla.kernel.org/show_bug.cgi?id=213829

--- Comment #53 from Marco (rodomar705@xxxxxxxxxxxxxx) ---
(In reply to Apostolos B. from comment #52)
> > What kind of errors?
> 
> Some like that:
> 
> Ιαν 05 18:20:53 mainland bluetoothd[25908]: Loading LTKs timed out for hci0
> Ιαν 05 18:20:53 mainland kernel: Bluetooth: hci0: command 0x0c52 tx timeout
> Ιαν 05 18:20:55 mainland kernel: Bluetooth: hci0: command 0x0c24 tx timeout
> Ιαν 05 18:20:57 mainland kernel: Bluetooth: hci0: command 0x0c1a tx timeout
> Ιαν 05 18:20:59 mainland kernel: Bluetooth: hci0: command 0x0405 tx timeout
> Ιαν 05 18:20:59 mainland kernel: Bluetooth: hci0: No way to reset. Ignoring
> and continuing
> Ιαν 05 18:21:36 mainland kernel: Bluetooth: hci0: command 0x0408 tx timeout
> Ιαν 05 18:21:36 mainland kernel: Bluetooth: hci0: No way to reset. Ignoring
> and continuing
> 
> I think those are the ones that are logged when i cant use the mouse any
> more and need to shutdown completely.
> 
> Might be usb related since afai understand the bluetooth adapter is
> connected via USB.

Same issues as mine, are you on a Ryzen or Intel?

As far as I have previously debugged, I wasn't unable to pinpoint the cause,
since it was happening randomly also on a Realtek radio, so it was either the
Bluetooth driver or an actual platform issue (but the external USB ports was
still working correctly, therefore I had never been able to find the root
cause).

Marco.

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