Hi All,
I have installed UBUNTU 10.04. But sound system is not working. i tried all the options that i came through on internet. i installed ALSA package too but it didn't work. Can any one help me out?

Thanks in advance.

10.04 is pretty old. Not sure if it's even supported anymore

Try 12.04 LTS. It's the latest version of Ubuntu and has 5 years support on it

Welcome to LQ.

May be some channel is muted.
Please find any mixer ( or volume control ), and try "un mute".

Welcome, Anandsingh.

I think knudfl has the best guess; Ubuntu sound is almost always muted by default. Insane, but there it is.

In case that doesn't work... Have you checked to make sure that your sound card is supported? ALSA has a list on their website of most cards, and how functional they are with ALSA.

I agree with SandsOfArrakis; you should lose the Ubuntu 10.04 installation; it is no longer supported. Ubuntu changes at a rapid pace, so 10.04 is obsolete. I used it until a year ago, and I had sound problems, too. I had to remove Pulse Audio completely before I could get sound working with my card.

If you have fairly new hardware, Ubuntu 12.04 should work well enough. But if you have older hardware, 12.04 may not support it so well; distros like PCLinuxOS, Puppy Linux, Simply Mepis, or Knoppix, may work better.
In my experience, those have very good hardware detection, and are likely to "just work", including sound.

In any event, lose the 10.04. Since you are a newbie, please, spare yourself the headache of trying to learn Linux on an obsolete distro.

1 members found this post helpful.

Ubuntu 10.04 is supported till April 2013.

My mistake. Still, that's less than 9 months away. OP is self-described newbie, and that's all the time they will have before having to learn to use Unity desktop; why not start there?

The OP wont have to use unity, even if they decide to stay with one of the *buntus. Xfce/xubuntu, lxde/lubuntu, kde4/kubuntu (and E17/bodhi, though its not exactly 'pure' ubuntu) are all options.....and IMO any of them is better than unity.

Just trying to spare a self-described newbie some needless aggravation. I used, evangelized, and loved 10.04. I also had sound problems with Lucid, but sound is one of the few things that worked "as is" when I tried 12.04. I'm well aware that there are desktop choices; I made mine. I just couldn't see encouraging a newbie to learn something that would be belly-up within the year, like Ubuntu 10.04 with Gnome 2.x. It would be off-topic here to lapse into calm, rational discussion of how sick and wrong Unity is, or the merits of various other desktops, or how very much better Enlightenment E17 is than all the rest, so I won't do it.

Anyway...

I suspect the OP tried one of the first suggestions, and it worked, which is why we haven't heard back from them. -Bet knudfl was right; it was on "mute".