No sound!

Hello,

System>Preferences>Hardware Information will give you the information that you are looking for. Also you can usually find it by the Make/model of the computer and or motherboard.

Best Regards,
Williamts99

Howdy Mike-d. here,
Disclaimer: I mostly just file bug reports and crash reports.
"Potential Lock-up Warning"
 I'm going to tell you how to pick which sound equipment you can use, but I have seen this lock-up computers before, so make sure you save or close whatever your working on and what don't want to lose in case of lock-up, I'm not talking about file erasing or anything that bad, other than that, it usually just requires you to turn -off computer and turn it on again.
o.k. to choose the built in hard ware and drivers:
Left click on System-> Preferences->Sound
Sound Preferences Window will open.
under the devices tab, Sound events, sound playback there will be the hardware detect to choose from.
you can click on the auto detect, and an annoying sound may come out, good if you had no sound before, sometimes it kind of scratchy,
you can work your way down the line on the different items, see, or hear what sounds better and go with that, it usually remembers whatever you choose.
make sure you have speakers plugged into the right place on the computer, and that they are powered either by the computer, or batteries, of electricity, or whatever.
sound capture stuff you may leave alone unless you going to record sound or incoming signals, because you won't really hear anything unless you have an active sound signal going through, and it sometimes locks up a system. I usually don't hear much or any sound from the built-in PC Speaker, or Piezos Buzzers some computers have.
good luck.

I have suddenly lost my sound in ubuntu 9.04. Since I dual boot with windows I took the opportunity of testing my sound card and guess what? it works just fine!.I have also tested with a live cd and what do u know.It works fine as well.

So, please can anyone tell me what to do besides re-installing 8.0.4.3 or 9.0.4 again. I have a lot of work on this machine that I don't want to lose and I need sound for my work.

Thanks
Mx.

@Grig

Please don't append a new question on a old, already answered or marked as solved question.
Please make new question from here: https://answers.launchpad.net/ubuntu/+addquestion
you will get better chance to get right answer on a fresh tagged "open" question.
Old questions: solved or answered are usually not read from answering people.

Thank you