I'm a bit vague but I think there is something about moving the SDL files in oolite so as to force the game to use the SDL files within Linux. Can't remember where I saw that but it may be relevant to your issue.
This is actually the Oolite/doc/README.TXT file that comes up the first time you run Oolite (if downloaded from oolite.org or nightly server).
It concerns renaming oolite prepackaged libraries so as to force oolite to use the system's libraries (if of course they are available).
One more thing that could make a difference (I will shortly add it in the README.TXT) is to rename the libopenal.so.1 that resides in oolite-dep/lib folder.