No sound

I reformatted my hard drive and installed Mandriva 2011.
It works fine. I can go to the Internet

The problem is no sound.
I want to listen to songs from YouTube. Sound doesn't come.
I see a man is singing on the screen. No sound.
I had no problem with my old Mandriva. Sound and everything worked fine.

Your help is greatly appreciated.

What's your system?

I have a 64 bit PC. I have installed 64 bit Mandriva 2011.
I intend to install Fedora Core, Ubuntu, Open SuSe, etc.
I installed Mandriva on 'sda1'.
I have made 'sda2' , 'sda3' etc for other operating systems.
Every partition has 75 GB.
I will use GRUB to have other operating systems.

64-bit what? sound hardware is hardware-dependent.

Thanks for the reply. I looked at the details about the sound configuration and read the following
.........................................................................................................................................
Sound Configuration
Here you can select an alternative driver (either OSS or ALSA) for your sound card (VIA Technologies, Inc.|VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller)).

Your card currently use the ALSA "snd_hda_intel" driver (default driver for your card is "snd_hda_intel")

Driver: snd_hda_intel[ALSA]

  • Enable PulseAudio
  • Enable 5.1 sound with PulseAudio
  • Enable user switicihing for Audio applications [This is unmarked.]
  • Use Glitch-Free mode

Yes...

But what is your computer? What brand, what board, what model, things like that. Sound is hardware-specific.

I don't understand what pulse is supposed to be good for. It just uses alsa, in the end, and just makes alsa harder to use...

[nissanka@localhost ~]$ su root
Password:
[root@localhost nissanka]# lspcidrake -v | fgrep -i AUDIO
snd_hda_intel : VIA Technologies, Inc.|VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (vendor:1106 device:3288 subv:1849 subd:0888) (rev: 10)
[root@localhost nissanka]#

[ The above shows the details of sound card, I hope.]
What shall I do?

From the information given so far, I can't even tell whether your computer's a desktop or a laptop. Sound is hardware-dependent. There often are issues with specific models and the like, especially for portable hardware.

I suppose you've tried playing with the mixer already?

I just posted the details you need. It is not visible. What happen?

No, you did not. But I am not going to ask a fourth time.

I am reposting.

Thanks for all the replies.

This is a desktop computer.
There is no brand. I know about so-called brand computers. You could buy Dell computers,
HP computers, etc.
I bought this one from a shop some 4 years ago. There are shops to make computers
for you.

It has an AMD processor and AsRock motherboard.

ASRock > Products > ALiveSATA2-GLAN

Yes, mixer looks fine.

I have re-posted.
I saw a flash message. It said 'the moderator has to approve it before placing here'.
I don't know these things. Please look at it later on.