Bug 211983

Summary:	BUG: Unable to toggle bluetooth ON once switched off using rfkill
Product:	Drivers	Reporter:	Kunal Bhat (kunal.bhat2001)
Component:	Bluetooth	Assignee:	linux-bluetooth (linux-bluetooth)
Status:	NEW ---
Severity:	high	CC:	cirlo_ca, juliusvonkohout, kunal.bhat2001, lukaskandler, marsupilami450, t.clastres, vinayshastry
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	5.11.1	Subsystem:
Regression:	No	Bisected commit-id:

Description Kunal Bhat 2021-02-27 16:22:44 UTC

As the title suggests, the only way to toggle bluetooth on is by restarting the  bluetoothd service. Once Bluetooth has been switched off using rfkill/other frontends, it refuses to turn back on, even though rfkill reports hci0(bluetooth) as unblocked.

It works just fine on 5.10.16.

Steps to reproduce: 
Disable bluetooth with rfkill and try enabling it again.

Hardware: Intel Corp. Wireless-AC 9260 Bluetooth Adapter
Kernel Version: 5.11.1 and 5.11.2

Tried reading journalctl and dmesg outputs to no avail. Let me know if there's any logs that I can acquire.

Comment 1 Kunal Bhat 2021-02-28 06:58:13 UTC

Changing the problematic component to USB since it seems to affect more than bluetooth. My USB mouse is recognised on connecting, but doesn't seem to function unless I boot up the system with it connected.

Comment 2 juliusvonkohout 2021-04-24 14:00:03 UTC

Same problem on fedora 34 and ubuntu 21.04 with kernel 5.11.
I am using an intel ax201 card.

Comment 3 juliusvonkohout 2021-04-25 07:44:28 UTC

There seem to be Fedora downstream bugs https://bugzilla.redhat.com/show_bug.cgi?id=1944482

Comment 4 Kunal Bhat 2021-07-27 15:19:15 UTC

Was fixed in 5.12 but seems to have reappeared in 5.13