(In reply to rkfg from comment #35)
> When I start PA without tsched=0, it's ALSA setup is weird:
> 

> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   rate     
> : 44100
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   exact
> rate   : 44100 (44100/1)
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   msbits   
> : 16
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
> buffer_size  : 88192
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
> period_size  : 44096
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
> period_time  : 999909
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
> 
> 
> Why does period size lack 4 bytes to be exactly 1 second long?


https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=5f1545bc45a33361d6bb2fb44af7c35bcd733b9d


snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+                                  128);
+       snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
+                                  128);

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=103884a351a221553095c509a1dbbbf7d4fd9b05

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https://bugs.launchpad.net/bugs/996906

Title:
  periodic audio skips with Intel HDA

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