Just rebooted:
$ sudo hciconfig -a
hci0: Type: BR/EDR Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:6 acl:0 sco:0 commands:2 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: SLAVE ACCEPT
$ lsusb
Bus 006 Device 004: ID 0cf3:3005 Atheros Communications, Inc. AR3011 Bluetooth
So it is detected, but still cannot be controlled
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Packages, which is subscribed to bluez in Ubuntu.
https://bugs.launchpad.net/bugs/1541392
Title:
AR3011 Bluetooth not starting after being stoped (but detected)
Status in bluez package in Ubuntu:
New
Bug description:
kernel : 4.2.0-27
onboard bluetooth controller : AR3011
The Bluetooth was working great. I deactivated the bluetooth via the
indicator, and then, impossible to start it. Neither from the settings
bluetooth interface, neither via hciconfig. The service was of course started
without problems.
The device was well recognized and started, could find which usb port and
everything. However hciconfig could not see it:
$ hciconfig -a hci0
hci0: Type: BR/EDR Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:12 acl:0 sco:0 commands:4 errors:0
Of course I restarted the system, tried purging all bluetooth related
packages, tried installing blueman. Nothing would make it start.
Finally I found this thread of arch linux :
https://bbs.archlinux.org/viewtopic.php?id=171357
So basically I shut down the computer, waited a while, started the computer
and the bluetooth is functional again.
I will try reproducing the bug. I tried, but it did not happen again. Maybe
it's because I was listening music, lost signal, came back to the pc and closed
bluetooth.
Any thoughts of what is this caused by?
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