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#1 2016-11-10 09:04:52

xaverlalo
Member
Registered: 2012-05-02
Posts: 18

[SOLVED] Bluetooth stopped working (linux 4.8.6, bluez 5.43, hcicon...

Hello guys I need your help! My bluetooth stopped working (it worked a few days ago) on my Dell XPS 13 Late 2016 9360. I really don't know what's the problem. Is it possible that it has someting to do with tlp (It's just a feeling)?

Here is a lots of information you might need, tell me if you need some more:

# pacman -Q linux-nvme bluez bluedevil tlp
linux-nvme 4.8.6-1
bluez 5.43-1
bluedevil 1:5.8.3-1
tlp 0.9-2

I tried to turn it on:

# hciconfig hci0 up
Can't init device hci0: Input/output error (5)

but it does not work (DOWN):

# hciconfig -a hci0
hci0: Type: Primary Bus: USB
 BD Address: 9C:B6:D0:D0:46:7E ACL MTU: 1024:8 SCO MTU: 50:8
 DOWN 
 RX bytes:603 acl:0 sco:0 events:32 errors:0
 TX bytes:375 acl:0 sco:0 commands:32 errors:0
 Features: 0xff 0xfe 0x8f 0xfe 0xd8 0x3f 0x5b 0x87
 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
 Link policy: RSWITCH HOLD SNIFF 
 Link mode: SLAVE ACCEPT

It's not blocked

# rfkill list
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no

The service status:

# systemctl status bluetooth.service 
● bluetooth.service - Bluetooth service
 Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; disabled; vendor preset: disabled)
 Active: active (running) since Do 2016-11-10 09:24:05 CET; 21min ago
 Docs: man:bluetoothd(8)
 Main PID: 449 (bluetoothd)
 Status: "Running"
 Tasks: 1 (limit: 4915)
 CGroup: /system.slice/bluetooth.service
 └─449 /usr/lib/bluetooth/bluetoothd

Nov 10 09:24:04 a bluetoothd[449]: Bluetooth management interface 1.13 initialized
Nov 10 09:24:05 a bluetoothd[449]: Failed to obtain handles for "Service Changed" characteristic
Nov 10 09:24:05 a bluetoothd[449]: Sap driver initialization failed.
Nov 10 09:24:05 a bluetoothd[449]: sap-server: Operation not permitted (1)
Nov 10 09:24:05 a systemd[1]: Started Bluetooth service.
Nov 10 09:24:09 a bluetoothd[449]: Endpoint registered: sender=:1.29 path=/MediaEndpoint/A2DPSource
Nov 10 09:24:09 a bluetoothd[449]: Endpoint registered: sender=:1.29 path=/MediaEndpoint/A2DPSink
Nov 10 09:45:13 a bluetoothd[449]: Failed to set mode: Failed (0x03)

at the end of lsusb -v you find "Resource temporarily unavailable"

# lsusb -v
Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. 
Device Descriptor:
 bLength 18
 bDescriptorType 1
 bcdUSB 2.01
 bDeviceClass 224 Wireless
 bDeviceSubClass 1 Radio Frequency
 bDeviceProtocol 1 Bluetooth
 bMaxPacketSize0 64
 idVendor 0x0cf3 Atheros Communications, Inc.
 idProduct 0xe300 
 bcdDevice 0.01
 iManufacturer 0 
 iProduct 0 
 iSerial 0 
 bNumConfigurations 1
 Configuration Descriptor:
 bLength 9
 bDescriptorType 2
 wTotalLength 177
 bNumInterfaces 2
 bConfigurationValue 1
 iConfiguration 0 
 bmAttributes 0xe0
 Self Powered
 Remote Wakeup
 MaxPower 100mA
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 0
 bAlternateSetting 0
 bNumEndpoints 3
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x81 EP 1 IN
 bmAttributes 3
 Transfer Type Interrupt
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0010 1x 16 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x82 EP 2 IN
 bmAttributes 2
 Transfer Type Bulk
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0040 1x 64 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x02 EP 2 OUT
 bmAttributes 2
 Transfer Type Bulk
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0040 1x 64 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 0
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0000 1x 0 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0000 1x 0 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 1
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0009 1x 9 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0009 1x 9 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 2
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0011 1x 17 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0011 1x 17 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 3
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0019 1x 25 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0019 1x 25 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 4
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0021 1x 33 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0021 1x 33 bytes
 bInterval 1
 Interface Descriptor:
 bLength 9
 bDescriptorType 4
 bInterfaceNumber 1
 bAlternateSetting 5
 bNumEndpoints 2
 bInterfaceClass 224 Wireless
 bInterfaceSubClass 1 Radio Frequency
 bInterfaceProtocol 1 Bluetooth
 iInterface 0 
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x83 EP 3 IN
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0031 1x 49 bytes
 bInterval 1
 Endpoint Descriptor:
 bLength 7
 bDescriptorType 5
 bEndpointAddress 0x03 EP 3 OUT
 bmAttributes 1
 Transfer Type Isochronous
 Synch Type None
 Usage Type Data
 wMaxPacketSize 0x0031 1x 49 bytes
 bInterval 1
Binary Object Store Descriptor:
 bLength 5
 bDescriptorType 15
 wTotalLength 12
 bNumDeviceCaps 1
 USB 2.0 Extension Device Capability:
 bLength 7
 bDescriptorType 16
 bDevCapabilityType 2
 bmAttributes 0x00000002
 HIRD Link Power Management (LPM) Supported
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
 Self Powered

Last edited by xaverlalo (2016-11-14 11:01:39)

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#2 2016-11-10 13:47:08

R00KIE
Forum Fellow
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From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: [SOLVED] Bluetooth stopped working (linux 4.8.6, bluez 5.43, hcicon...

If you suspect tlp then disable it and see if things work, you should also try the official linux kernel in the repos if you are using a different one.

R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#3 2016-11-14 11:04:23

xaverlalo
Member
Registered: 2012-05-02
Posts: 18

Re: [SOLVED] Bluetooth stopped working (linux 4.8.6, bluez 5.43, hcicon...

I uninstalled tlp and now it works again.

Sap driver and "Service Changed" characteristics still produce some errors but this does not affect the usability.

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#4 2016-11-14 21:46:19

linrunner
Member
Registered: 2013-04-21
Posts: 56

Re: [SOLVED] Bluetooth stopped working (linux 4.8.6, bluez 5.43, hcicon...

A finer approach would be to disable autosuspend for the bluetooth device --> http://linrunner.de/en/tlp/docs/tlp-faq.html#input

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