檢視Linux聲霸卡基本資訊[轉載]

檢視系統版本

~$ uname -a

Linux laptop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux

檢視型号為ac97的聲霸卡驅動子產品

~$ modprobe -l | grep ac97

/lib/modules/2.6.27-7-generic/kernel/sound/pci/ac97/snd-ac97-codec.ko

/lib/modules/2.6.27-7-generic/kernel/sound/ac97_bus.ko

檢視聲霸卡型号

~$ lspci  |grep -i audio

00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC’97 Audio Controller (rev 03)

檢視聲霸卡資訊

~$ cat /proc/asound/cards

0 [ICH5           ]: ICH4 – Intel ICH5

Intel ICH5 with AD1985 at irq 17

檢視alsa-utils版本

~$ alsactl -v

alsactl version 1.0.17

檢視核心alsa版本（需要與alsa-utils版本一緻）

cat /proc/asound/version

Advanced Linux Sound Architecture Driver Version 1.0.16.

Compiled on Dec  2 2008 for kernel 2.6.24-23-generic (SMP).

聲霸卡資訊

~$ aplay -l

**** List of PLAYBACK Hardware Devices ****

card 0: ICH5 [Intel ICH5], device 0: Intel ICH [Intel ICH5]

Subdevices: 0/1

Subdevice #0: subdevice #0

card 0: ICH5 [Intel ICH5], device 4: Intel ICH – IEC958 [Intel ICH5 - IEC958]

Subdevices: 1/1

硬體資訊 之 聲霸卡（lshw指list hardware，是一個軟體）

~$ sudo lshw -C sound

*-multimedia UNCLAIMED

description: Multimedia audio controller

product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC’97 Audio Controller

vendor: Intel Corporation

physical id: 1f.5

bus info: pci@0000:00:1f.5

version: 03

width: 32 bits

clock: 33MHz

capabilities: pm bus_master cap_list

configuration: latency=0

系統子產品狀态 之 聲音

~$ lsmod | grep -i snd

snd_pcm_oss            46496  0

snd_mixer_oss          22784  1 snd_pcm_oss

snd_pcm                83844  1 snd_pcm_oss

snd_seq_dummy          11012  0

snd_seq_oss            39936  0

snd_seq_midi           14368  0

snd_rawmidi            29728  1 snd_seq_midi

snd_seq_midi_event     15232  2 snd_seq_oss,snd_seq_midi

snd_seq                58352  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event

snd_timer              29448  2 snd_pcm,snd_seq

snd_seq_device         15500  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq

snd                    64164  9 snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device

soundcore              15328  1 snd

snd_page_alloc         16776  1 snd_pcm

# below is the module listing with working sound in kernel 2.6.24-21

:~$ cat sndmodules

snd_intel8×0           35868  3

snd_ac97_codec        102176  1 snd_intel8×0

ac97_bus                3200  1 snd_ac97_codec

snd_pcm_oss            42528  0

snd_mixer_oss          18048  1 snd_pcm_oss

snd_pcm                79748  3 snd_intel8×0,snd_ac97_codec,snd_pcm_oss

snd_seq_dummy           4996  0

snd_seq_oss            35456  0

snd_seq_midi            9504  0

snd_rawmidi            25888  1 snd_seq_midi

snd_seq_midi_event      8576  2 snd_seq_oss,snd_seq_midi

snd_seq                54096  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event

snd_timer              24964  2 snd_pcm,snd_seq

snd_seq_device          9612  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq

snd                    59812  17 snd_intel8×0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device

soundcore               8800  1 snd

snd_page_alloc         12552  2 snd_intel8×0,snd_pcm

#I have a disabled volume control applet on the panel (red cross)

# attempting to use it give the following message

The volume control did not find any elements and/or devices to control. This means either that you don’t have the right GStreamer plugins installed, or that you don’t have a sound card configured.