Originally Posted by b.walker36
it only lists intel when i run sudo asoundconf list. can somone help me to install the drivers for the realtek hd onboard.
That's the sound chip (you don't have anything else in there right?). Just for kicks, tell Ubuntu to just use that chip:
sudo asoundconf set-default-card intel
Reboot and see if anything changes. If not, run alsamixer from a terminal. The chip it lists should be the intel, so just check the volume levels. You should also check your volume properties (right click on the volume icon in your panel) and make sure it's using the right device (and it's using the ALSA mixer).
Another thing to check is the Multimedia Systems Selector. This is not enabled by default on the GNOME menu, so you have to open the menu editor and enable it (it's in the System>Preferences menu). This configuration tool lets you set additional sound options; make sure everything here is using ALSA. Also check the Volume control settings (in System>Preferences); make sure everything here is using ALSA as well, and that the mixer device is set to your sound chip.