在读了相当多数字的帖子 这里在 askubuntu.com 和其他地方，我的蓝牙扬声器仍然没有声音。
以下是我的配置：我有一台联想ThinkPad X220带有未知规格的蓝牙子卡：
user@tp220:~$ lsusb
[...]
Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
[...]
否则，芯片组是英特尔移动 QM67 Express 芯片组：
user@tp220:~$ lsmod | grep intel
intel_rapl 18783 0
intel_powerclamp 18823 0
kvm_intel 143590 0
kvm 452043 1 kvm_intel
ghash_clmulni_intel 13230 0
snd_hda_intel 30428 6
snd_hda_controller 31056 1 snd_hda_intel
snd_hda_codec 139682 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_pcm 104112 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
aesni_intel 152552 1
aes_x86_64 17131 1 aesni_intel
lrw 13286 1 aesni_intel
glue_helper 13990 1 aesni_intel
ablk_helper 13597 1 aesni_intel
cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper
snd 79468 24 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device
我想我已经安装了所有相关的软件包：
user@tp220:~$ LANG=C dpkg -l *blue*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=====================================-=======================-=======================-===============================================================================
ii bluedevil 2.0~rc1really1.3.2-0ubu amd64 KDE Bluetooth stack
ii blueman 1.23-git201403102151-1u amd64 Graphical bluetooth manager
ii bluetooth 4.101-0ubuntu13 all Bluetooth support
ii bluewho 0.1-1 all notifies new discovered bluetooth devices
ii bluez 4.101-0ubuntu13 amd64 Bluetooth tools and daemons
ii bluez-alsa:amd64 4.101-0ubuntu13 amd64 Bluetooth ALSA support
un bluez-audio <none> <none> (no description available)
ii bluez-btsco 1:0.50-0ubuntu4 amd64 Bluez Bluetooth SCO tool
ii bluez-compat 4.101-0ubuntu13 amd64 BlueZ 3.x compatibility binaries
ii bluez-cups 4.101-0ubuntu13 amd64 Bluetooth printer driver for CUPS
ii bluez-gstreamer 4.101-0ubuntu13 amd64 Bluetooth GStreamer support
un bluez-hcidump <none> <none> (no description available)
un bluez-input <none> <none> (no description available)
un bluez-network <none> <none> (no description available)
un bluez-serial <none> <none> (no description available)
ii bluez-utils 4.101-0ubuntu13 all Transitional package
un kdebluetooth <none> <none> (no description available)
ii libbluedevil1:amd64 2.0~rc1really1.9.4-0ubu amd64 Qt wrapper for bluez
ii libbluetooth3:amd64 4.101-0ubuntu13 amd64 Library to use the BlueZ Linux Bluetooth stack
ii pulseaudio-module-bluetooth 1:4.0-0ubuntu11 amd64 Bluetooth module for PulseAudio sound server
un python-bluetooth <none> <none> (no description available)
ii python-bluez 0.18-2 amd64 Python wrappers around BlueZ for rapid bluetooth development
un python2.7-bluez <none> <none> (no description available)
另外，在从某处读到 VLC 可能是可行的方法后，我安装了 phonon-backend-vlc - 但无济于事 :-/
KDE 蓝牙系统成功绑定到我的 JBL Charge 扬声器，我收到一条消息，表示音频链接（接收器？）已成功设置。但是 - 当我打开系统设置 -> 多媒体 -> 音频硬件设置时，我看不到音频设备，只有内部音频。
我碰巧看到了一次，但后来音频完全卡住了，重启后也没有恢复。我无法再打开多媒体设置，最后不得不
rm .kde/share/config/phonondevicesrc
为了让它恢复工作（再次重启后）。