计算机没有播放音频。我检查了硬件音量按钮、pavucontrol和alsamixer。没有任何东西被静音。我添加了 ppa sudo add-apt-repository ppa:ubuntu-audio-dev。我还做了killall pulseaudio。
然而当我尝试时mplayer我得到：
[AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory
（确实没有显示ls）并且没有声音。Youtube viachromium也没有声音；Vimeo 也是如此； 也是如此vlc。
$ lspci -v
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
Subsystem: Lenovo ThinkPad T60/R60 series
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at ee400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
$ lsmod | grep snd
snd_hda_codec_analog 97987 1
snd_hda_intel 33773 2
snd_hda_codec 127706 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 97188 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13324 0
snd_rawmidi 30748 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 78855 14 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,thinkpad_acpi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 15091 1 snd
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xee400000 irq 48
29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control
ThinkPad Console Audio Control at EC reg 0x30, fw 79HT50WW-1.07
$ pacmd
Welcome to PulseAudio! Use "help" for usage information.
>>> list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9959
volume: 0: 63% 1: 63%
0: -12.00 dB 1: -12.00 dB
balance 0.00
base volume: 56%
-15.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 0
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 1
configured latency: 0.00 ms; range is 0.50 .. 341.33 ms
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 4
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "AD198x Analog"
alsa.id = "AD198x Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel"
alsa.long_card_name = "HDA Intel at 0xee400000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.name = "N10/ICH 7 Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Analog Devices AD1981"
alsa.components = "HDA:11d41981,17aa2025,00100200"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output: Analog Output (priority 9900, available: unknown)
properties:
active port: <analog-output>
我应该怎么办？
答案1
从https://wiki.ubuntu.com/PulseAudio从 gnome-terminal 尝试
$padsp mplayer /path/to/your/file
如果不起作用，请从 svn 快照构建自己的 mplayer
- 删除你的 mplayer
- 安装 C 工具链
- 安装 yasm $
sudo apt-get install yasm - 安装 dev pulse $
sudo apt-get install libpulse-dev - 安装 git $
sudo apt-get install git - 从以下位置下载 mplayer 快照http://www.mplayerhq.hu/MPlayer/releases/mplayer-checkout-snapshot.tar.bz2
- 解压快照
- 从 mplayer 源文件夹执行 $
./configure --enable-pulse - 然后 $
make - 最后做 $
sudo make install
请注意，在执行步骤 8 之前，您可以通过执行 $./configure --help来查看可用的配置。
哦，最后 ./configure 和 make 可能需要一些时间，所以吃点东西然后享受吧！！
快乐黑客！