Here's what I did to get the following missing features for my cheap Walmart Asus 5315-2153 to work on Ubuntu.
Enabling Wireless these directions worked for me:
http://ubuntuforums.org/showthread.php?t=512828
Enabling Sound follow the directions in this link
https://help.ubuntu.com/community/HdaIntelSoundHowto
1. When the above directions ask you to edit /etc/modprobe.d/alsa-base to add the model add the following to the last line of the file:
options snd-hda-intel model=acer
2. Save then restart.
Enabling Visual Effects use the following link:
http://ubuntuforums.org/showpost.php...3&postcount=20.
1. run sudo gedit /usr/bin/compiz
2. find and comment string T="$T 8086:2982 8086:2992 8086:29a2 8086:2a02 8086:2a12" # intel 965 by adding # in front of the line
3. Goto 'System' > 'Preferences' > 'Appearance', Choose 'Visual Effects' and select 'Extra'
*Please note it appears that enabling Visual Effects will cause video playback issues, Totem, VLC, and other media players kept crashing immediately until I disabled Visual Effects*
I love this little laptop! It doesn't run hot on my lap, the design doesn't say "steal me", it runs quite, the monitors bright, and it feels like it could take a spill from a drop.