https://bugzilla.kernel.org/show_bug.cgi?id=203643 Andriy Perevortkin (irherder@xxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |irherder@xxxxxxxxx --- Comment #10 from Andriy Perevortkin (irherder@xxxxxxxxx) --- Sadly the RFC patch above does not fix it for me, the revert does The device is edifier w330nb headset. hcidump fragment of failed connection: > HCI Event: Link Key Request (0x17) plen 6 bdaddr 5C:C6:E9:11:B1:20 < HCI Command: Link Key Request Reply (0x01|0x000b) plen 22 bdaddr 5C:C6:E9:11:B1:20 key 9290EB1424E3A352C43F17C8499A3670 > HCI Event: Command Complete (0x0e) plen 10 Link Key Request Reply (0x01|0x000b) ncmd 1 status 0x00 bdaddr 5C:C6:E9:11:B1:20 > HCI Event: Encrypt Change (0x08) plen 4 status 0x00 handle 256 encrypt 0x01 < HCI Command: Read Encryption Key Size (0x05|0x0008) plen 2 > ACL data: handle 256 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 25 scid 0x0580 < ACL data: handle 256 flags 0x00 dlen 16 L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0580 result 3 status 0 Connection refused - security block > HCI Event: Command Complete (0x0e) plen 7 Read Encryption Key Size (0x05|0x0008) ncmd 1 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 256 packets 1 > HCI Event: Disconn Complete (0x05) plen 4 status 0x00 handle 256 reason 0x13 Reason: Remote User Terminated Connection -- You are receiving this mail because: You are the assignee for the bug.