M.I.T = Multimedia IT dept.

The Realtek ALC262 sound chip on my laptop cannot be configured by Ubuntu 9.10 correctly...Therefore I decide to install the driver manually, refering to the following article with some minor modification:

Upgrade Alsa (1.0.21) on Ubuntu Jaunty 9.04
http://monespaceperso.org/blog-en/2009/08/31/upgrade-alsa-1-0-21-on-ubuntu-jaunty-9-04/

1) Download the latest High Definition Audio Codecs from Realtek official website below:

http://www.realtek.com.tw/downloads/downloadsCheck.aspx?Langid=1&PNid=24&PFid=24&Level=4&Conn=3&DownTypeID=3&GetDown=false#2

2) untar the alsa driver,lib, & utilities

tar jxvf alsa-driver*
tar jxvf alsa-lib*
tar jxvf alsa-utils*

3) install necessary ubuntu packages (excluding gettext!!)

sudo apt-get install libasound2-dev libncurses5-dev xmlto linux-headers-generic build-essential gnome-alsamixer -y

4) compile the driver:

cd alsa-driver*
./configure --with-cards=hda-intel
make
sudo make install

5) compile alsa lib

cd ../alsa-lib*
make
sudo make install

6) compile alsa utilities, uninstall the pre-install one first
sudo dpkg -r alsa-utils
./configure --disable-nls
make
sudo make install

7) reboot

8) after reboot, tune audio with gnome-alsamixer