So another data point.  
  
Linux Mint 20 (so basically Ubuntu) on x86-64.  Happens to be a MacBook Air but I don't think that's important.  
  
My normal install only build vm-sound-OSS.  And with that there is no sound and a complaint in the terminal about /dev/dsp not existing.  Which is true, /dev/dsp does not exist.  
  
But if install libpluse-dev before I build the VM then I also get vm-sound-pluse.  
  
tmp/opensmalltalk-vm/build.linux64x64/[squeak.cog.spur/build/squeak](http://squeak.cog.spur/build/squeak) -vm-sound-pulse myimage  


  
Good news - I get sound!  
  
Bad news - Well it seems a bit drunk in that it pauses about every second to two.  It acts like a buffering issue.  It is slightly worse without doing the RT priority limits.conf file.  
  
I'll also poke at this a bit.  
  
  
cheers  
  
bruce  
  
  

> > On 2020-12-24, at 1:21 PM, Herbert König wrote:  
>  >  
>  > Ha, ran the script in a terminal and on each piano keypress I get:  
>  > sound_Start(default)  
>  > soundStart: snd_add_pcm_handler: Function not implemented.  
>   
>  That's an error to do with some asynchronous handler stuff in alsa. I have no idea why it would fail.  
>   
>  All in all this sound stuff is getting very, very, frustrating  
>   
>   
>  tim  
>  --  
>  tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim  
>  Strange OpCodes: NOP: Randomize the PSW and then branch
  

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