Comment 4 for bug 144222

Cable modem Atlanta Webstar EPC2100R2 works out-of-the-box after enabling roaming mode.

After upgrading to Alsa 1.0.15 - sound works:
sudo apt-get linux-backports-modules-generic- THAT SAVE ME! /AND THIS ALSO/:
http://ubuntulife.net/wordpress/?p=3630
That helps me to solve sound: /reading carefully, from post #23 and further.../
http://ubuntuforums.org/showthread.php?t=600714&page=3
Now, output of console comand:
~$ cat /proc/asound/card0/codec#* | grep Codec
Codec: Realtek ALC268
Codec: Conexant ID 2c06

pretty usable /my next exploring task/- /mainly wireless/
http://ubuntuforums.org/showpost.php?p=3589861&postcount=1 - 4 other acer models...
http://ubuntuforums.org/showpost.php?p=3701446&postcount=11- Aspire 5315 related