Arch Linux

crashandburn4

Member

Registered: 2013-03-03

Posts: 105

[SOLVED]Unable to find bluetooth controller after upgrade.

After an upgrade I am unable to find my bluetooth controller (and neither is my

bluetoothctl

.)
looking for the device with hciconfig I get:

$ 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:3 acl:0 sco:0 commands:1 errors:0
	Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
	Packet type: DM1 DH1 HV1 
	Link policy: 
	Link mode: SLAVE ACCEPT

One suggestion was to fix it with hciconfig hci0 up but that didn't work.

$ sudo hciconfig hci0 up
Can't init device hci0: Connection timed out (110)

I'm unfortunately slightly out of ideas now (I've looked around a bit). If I remember correctly it should show up under lsusb but I can't find a bluetooth controller (or something that looks similar) in there:

Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 5986:0401 Acer, Inc 
Bus 003 Device 002: ID 8087:07dc Intel Corp. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Does anyone have any ideas?

Last edited by crashandburn4 (2014-06-26 13:44:39)

catalin

Member

From: Romania

Registered: 2014-06-25

Posts: 18

Website

Re: [SOLVED]Unable to find bluetooth controller after upgrade.

i had same problem with my bt few days ago , this is a bug in the latest kernel (more info here - https://bbs.archlinux.org/viewtopic.php?id=183038 ), you can patch it to fix this issue or you can downgrade / use linux-lts kernel

Last edited by catalin (2014-06-26 12:48:57)

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IT Engineer

crashandburn4

Member

Registered: 2013-03-03

Posts: 105

Re: [SOLVED]Unable to find bluetooth controller after upgrade.

Ahhh, thanks, I didn't find that thread. I'll mark as solved. Much appreciated.