dell inspiron 3521 laptop bluetooth does not connect to any device

Bug #1412024 reported by ToineM on 2015-01-17
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gnome-bluetooth (Ubuntu)
Undecided
Unassigned

Bug Description

With my Dell inspirion laptop i noticed some strange behaviour:

When i turn on my laptop and start ubuntu 14.04 (also experienced this with 12.04 and previous versions)
My Bluetooth never could connect to any device.

But when i first turn on my laptop in windows 7 (i have a dualboot)
then close Windows 7 and restart (not shut off) but restart in Ubuntu 12.04 or 14.04 my bluetooth adapter works fine..
When i then again shut off and turn back on my laptop the problem persists...

nspiron-3521:/usr/share/doc/bluez/examples$ dmesg|tail
[ 87.518217] cfg80211: Disabling freq 6060 MHz
[ 87.518219] cfg80211: Disabling freq 6080 MHz
[ 87.518225] cfg80211: Regulatory domain changed to country: NL
[ 87.518226] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 87.518229] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 87.518231] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 87.518233] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 87.518235] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[ 88.317514] eth1: IPv6 duplicate address fe80::fa2f:a8ff:fecf:9607 detected!
[ 358.371671] [drm:gen6_sanitize_pm] *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 00070000, was 16000000

Many thanks,
Toine
Netherlands

ToineM (toinemeijvis-msn) wrote :

Some more tech info on the system:

t@t-Inspiron-3521:~$ lspci -nnk | grep -iA2 net
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
 Subsystem: Dell Device [1028:0597]
 Kernel driver in use: r8169
02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
 Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
 Kernel driver in use: wl

t@t-Inspiron-3521:~$ lsusb
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 0c45:649a Microdia
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

t@t-Inspiron-3521:~$ rfkill list all
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: brcmwl-0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
3: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no

The problem only occurs with the Bluetooth module, wireless lan alway works.

Po-Hsu Lin (cypressyew) wrote :

You Bluetooth is:
 Bus 001 Device 003: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0

Which needs a special firmware from Boradcom to make it work, see comment #7 for the duplicated bug.

Check this bug for workaround: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065400

Or http://askubuntu.com/questions/632336/bluetooth-broadcom-43142-isnt-working-on-ubuntu-15-04

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