I'm having this problem in macOS 12.6, with a freshly installed vanilla launcher on a new machine account. I'm using only internal speakers, which work fine with other apps. It happens on every single run, not randomly. Here is the log file.
21:41:42 launcher Preparing to launch minecraft client for 1.12.2 21:41:42 launcher Checking installations. 21:41:42 launcher Minecraft client 1.12.2 is ready to start. 21:41:42 launcher Starting! 21:41:42 launcher Using default game log configuration client-1.12.xml (outputs XML) 21:41:43 bib Setting user: tntaws 21:41:45 bid Skipping bad option: lastServer: 21:41:45 bib LWJGL Version: 2.9.4 21:41:45 cev Reloading ResourceManager: Default 21:41:45 chm Starting up SoundSystem... 21:41:46 chm Initializing LWJGL OpenAL 21:41:46 chm (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org) 21:41:46 chm Error in class 'LibraryLWJGLOpenAL' 21:41:46 chm Unable to initialize OpenAL. Probable cause: OpenAL not supported. 21:41:46 chm ERROR MESSAGE: 21:41:46 chm Could not open ALC device 21:41:46 chm STACK TRACE: 21:41:46 chm org.lwjgl.openal.AL.init(AL.java:167) 21:41:46 chm org.lwjgl.openal.AL.create(AL.java:153) 21:41:46 chm org.lwjgl.openal.AL.create(AL.java:102) 21:41:46 chm org.lwjgl.openal.AL.create(AL.java:206) 21:41:46 chm paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164) 21:41:46 chm paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576) 21:41:46 chm paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572) 21:41:46 chm paulscode.sound.CommandThread.run(CommandThread.java:121) 21:41:46 chm ERROR MESSAGE: 21:41:46 chm Could not open ALC device 21:41:46 chm Starting up SoundSystem... 21:41:46 chm Switching to No Sound 21:41:46 chm (Silent Mode) 21:41:47 chm Sound engine started 21:41:47 cdp Created: 1024x512 textures-atlas
Toby Driscoll
I'm having this problem in macOS 12.6, with a freshly installed vanilla launcher on a new machine account. I'm using only internal speakers, which work fine with other apps. It happens on every single run, not randomly. Here is the log file.
21:41:42 launcher Preparing to launch minecraft client for 1.12.2
21:41:42 launcher Checking installations.
21:41:42 launcher Minecraft client 1.12.2 is ready to start.
21:41:42 launcher Starting!
21:41:42 launcher Using default game log configuration client-1.12.xml (outputs XML)
21:41:43 bib Setting user: tntaws
21:41:45 bid Skipping bad option: lastServer:
21:41:45 bib LWJGL Version: 2.9.4
21:41:45 cev Reloading ResourceManager: Default
21:41:45 chm Starting up SoundSystem...
21:41:46 chm Initializing LWJGL OpenAL
21:41:46 chm (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
21:41:46 chm Error in class 'LibraryLWJGLOpenAL'
21:41:46 chm Unable to initialize OpenAL. Probable cause: OpenAL not supported.
21:41:46 chm ERROR MESSAGE:
21:41:46 chm Could not open ALC device
21:41:46 chm STACK TRACE:
21:41:46 chm org.lwjgl.openal.AL.init(AL.java:167)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:153)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:102)
21:41:46 chm org.lwjgl.openal.AL.create(AL.java:206)
21:41:46 chm paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
21:41:46 chm paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
21:41:46 chm paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
21:41:46 chm paulscode.sound.CommandThread.run(CommandThread.java:121)
21:41:46 chm ERROR MESSAGE:
21:41:46 chm Could not open ALC device
21:41:46 chm Starting up SoundSystem...
21:41:46 chm Switching to No Sound
21:41:46 chm (Silent Mode)
21:41:47 chm Sound engine started
21:41:47 cdp Created: 1024x512 textures-atlas