Error from launcher (v2.1.5387):

Error starting SoundSystem. Turning off sounds & music java.lang.IllegalStateException: Failed to get OpenAL attributes at ctj.e(SourceFile:176) at ctj.a(SourceFile:149) at dxy.g(SourceFile:96) at dxy.a(SourceFile:87) at dyb.a(SourceFile:133) at dyb.a(SourceFile:39) at xj.a(SourceFile:13) at java.util.concurrent.CompletableFuture.uniAccept(Unknown Source) at java.util.concurrent.CompletableFuture$UniAccept.tryFire(Unknown Source) at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source) at xk.a(SourceFile:71) at agn.h(ThreadTaskExecutor.java:159) at agr.h(SourceFile:23) at agn.p(ThreadTaskExecutor.java:130) at agn.bf(ThreadTaskExecutor.java:110) at cvo.e(SourceFile:915) at cvo.b(SourceFile:411) at net.minecraft.client.main.Main.main(SourceFile:154) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:157) at net.minecraft.launchwrapper.Launch.main(Launch.java:23)

I have also tried this with the latest beta version (2.1.5560), same error occurs.