Try hard resets or reflash. For me, I found the sound controlls to be the problem, so check audio isn't switched off in some weird way under settings, sound, vollume.
Sent from my Galaxy S3 using Xda Premium. Long live the Galaxy S!
This is the only real way. I would go for CM10 nightly unofficial by RaymanFX (a name like that anyway) very high up in the development section for our device.
If default kernel, which already has fixes, does not work, try KAT with lidpatch.
Sent from my Galaxy S3 using Xda Premium. Long live the Galaxy S!
There is finnaly a solution for this issue.
You can use K.A.T. (http://xdaforums.com/showthread.php?t=1841851)
With this software, you can reinit the DSP Manager, and have the sound back without reboot !
It save my life
The only thing is it works well with CM10, rooted. I don't think it will work with stock ROM.
In your case, you seems already to be with CM10, no pb
I am a reseller for Asus and I have received a large number of calls relating to this sound issue. I know it is not isolated because of the sheer number of customers having the issue. I have reported the issue to Asus and they have not been much help at all. The sound will randomly cut out (mostly when headphones are plugged in or unplugged but not always) and it will only come back with a reboot. The most common situation is when someone has sound, plugs in headphones and hears nothing. They then unplug the headphones and still no sound. Volume is all the way up and there is no indication that any headphones are plugged into the tablet but still no sound. Again, the only solution I have found so far is a reboot; however, I would like a more permanent solution. I can provide a logcat to anyone who can provide assistance on the issue. This sound issue has been a nightmare!