Since the update to 1.5 to 1.6, I haven't had any sound. I've tried the fallowing:
Deleted .minecraft folder
Redownloaded the new launcher
Replaced lwjgl with the version used in 1.5 (doesn't work because new launcher auto-updates it back to the latest)
Changed resource packs.
F3+S
Checked sound files and options
Deleted .minecraft folder
Redownloaded the new launcher
Replaced lwjgl with the version used in 1.5 (doesn't work because new launcher auto-updates it back to the latest)
Changed resource packs.
F3+S
Checked sound files and options
None of which fixed it.
This is on Ubuntu 13.04 64bit, btw.