It feels great after long awaiting moment when you see something that working at last ! I’m in that feelings now i was running Ubuntu besides XP ,just because of my sound problem..went through forums and tried several things.Nothing worked !! At last, today Hasin brother helped me to find out the solution. My Acer laptop model is 5573. and i got Realtek ALC 883 sound card. Some following command solved the issue and at last i got my sound playing successfully…….

1. run : sudo apt-get install linux-backports-modules-generic
2. Remove volume control.
3. run : sudo modprobe -r snd-hda-intel
4. run : sudo modprobe snd-hda-intel

then you are done. just get back to your volume control. it worked for me. hope it does the same for you.

I have got everything running in my Ubuntu. Now it’s time for me to say “Buh-Byez” to Windows. i will write more on this soon.