[pulseaudio-tickets] [Bug 49608] periodic audio skips with Intel HDA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49608

--- Comment #35 from rkfg <rkfg at rkfg.me> ---
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: Control: PCM
Playback Volume
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: min_dB: -51
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: max_dB: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: resolution:
256
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Its setup is:
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   stream      
: PLAYBACK
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   access      
: MMAP_INTERLEAVED
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   format      
: S16_LE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   subformat   
: STD
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   channels    
: 2
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:   tstamp_mode 
: ENABLE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   period_step 
: 1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   avail_min   
: 87310
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   period_event
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
start_threshold  : -1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
stop_threshold   : 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
silence_threshold: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   silence_size
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   boundary    
: 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Slave:
Hardware PCM card 0 'HDA Intel PCH' device 0 subdevice 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Its setup is:
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   stream      
: PLAYBACK
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   access      
: MMAP_INTERLEAVED
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   format      
: S16_LE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   subformat   
: STD
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   channels    
: 2
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:   tstamp_mode 
: ENABLE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   period_step 
: 1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   avail_min   
: 87310
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   period_event
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
start_threshold  : -1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
stop_threshold   : 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:  
silence_threshold: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   silence_size
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   boundary    
: 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   appl_ptr    
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:   hw_ptr      
: 0

Why does period size lack 4 bytes to be exactly 1 second long?

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