Sorry, I am same user as comment #288 (previous one), I forgot:
$ hciconfig -a hci0: Type: USB BD Address: 00:1F:81:00:02:50 ACL MTU: 1021:4 SCO MTU: 180:1 UP RUNNING PSCAN RX bytes:1477 acl:0 sco:0 events:54 errors:0 TX bytes:426 acl:0 sco:0 commands:39 errors:5 Features: 0xff 0x3e 0x0d 0x76 0x80 0x01 0x00 0x80 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Can't read local name on hci0: Connection timed out (110)
$tail /var/log/kern.log Aug 3 20:06:28 oem-desktop kernel: [ 604.365742] hci_cmd_task: hci0 command tx timeout
Sorry, I am same user as comment #288 (previous one), I forgot:
$ hciconfig -a
hci0: Type: USB
BD Address: 00:1F:81:00:02:50 ACL MTU: 1021:4 SCO MTU: 180:1
UP RUNNING PSCAN
RX bytes:1477 acl:0 sco:0 events:54 errors:0
TX bytes:426 acl:0 sco:0 commands:39 errors:5
Features: 0xff 0x3e 0x0d 0x76 0x80 0x01 0x00 0x80
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Can't read local name on hci0: Connection timed out (110)
$tail /var/log/kern.log
Aug 3 20:06:28 oem-desktop kernel: [ 604.365742] hci_cmd_task: hci0 command tx timeout