it’s a question that we often ask: how do I do it when my computer’s sound doesn’t work? I start my phone and I can’t hear anything, is that normal?

Here is a little doc that lists some common actions to do when you don’t have sound on your computer. Then, if it still doesn’t work, go to the mailing list or multimedia forum
Has the volume gone up?

It may sound silly, but in most cases, there is no sound because the volume is lowered.

To start, check if your speakers have a volume knob and if so, if the volume is not at 0.

Then, check if the volume is not turned off at the system level. To do this, in most distributions, click on the speaker or megaphone icon (it is usually at the top right or bottom right of your desktop). This will give you access to a mixer to increase the volume.

You can also run the command

1 alsamixer &

2 kmix &

3 aplay /usr/share/sounds/alsa/Front_Center.wav

4 adduser OR useradd

5 sudo aplay -l or aplay -l

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

7 aplay: device_list:204: no soundcards found…

8 find /lib/modules/`uname -r` | grep snd

9 /lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/snd-i2c.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/other/snd-ak4xxx-adda.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/other/snd-tea575x-tuner.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/other/snd-ak4114.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/other/snd-pt2258.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/i2c/snd-cs8427.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/ac97/snd-ac97-codec.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/ac97/snd-ak4531-codec.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/ca0106/snd-ca0106.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/snd-rme32.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/vx222/snd-vx222.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/emu10k1/snd-emu10k1x.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/emu10k1/snd-emu10k1.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/emu10k1/snd-emu10k1-synth.ko
/lib/modules/2.6.18-164.9.1.el5/kernel/sound/pci/snd-ad1889.ko