Created attachment 115078
Kernel log

Here's the log. I've set tsched=0 and set 2 fragments, 2 ms each.

ALSA setup:

Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: Soft volume PCM
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: Control: PCM Playback Volume
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: min_dB: -51
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: max_dB: 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: resolution: 256
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: Its setup is:
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   stream       : PLAYBACK
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   access       : MMAP_INTERLEAVED
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   format       : S16_LE
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   subformat    : STD
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   channels     : 2
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   rate         : 44100
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   exact rate   : 44100 (44100/1)
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   msbits       : 16
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   buffer_size  : 192
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_size  : 96
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_time  : 2176
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   tstamp_mode  : ENABLE
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_step  : 1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   avail_min    : 96
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_event : 1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   start_threshold  : -1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   stop_threshold   : 6917529027641081856
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   silence_threshold: 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   silence_size : 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   boundary     : 6917529027641081856
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: Slave: Hardware PCM card 0 'HDA Intel PCH' device 0 subdevice 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c: Its setup is:
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   stream       : PLAYBACK
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   access       : MMAP_INTERLEAVED
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   format       : S16_LE
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   subformat    : STD
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   channels     : 2
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   rate         : 44100
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   exact rate   : 44100 (44100/1)
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   msbits       : 16
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   buffer_size  : 192
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_size  : 96
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_time  : 2176
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   tstamp_mode  : ENABLE
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_step  : 1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   avail_min    : 96
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   period_event : 1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   start_threshold  : -1
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   stop_threshold   : 6917529027641081856
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   silence_threshold: 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   silence_size : 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   boundary     : 6917529027641081856
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   appl_ptr     : 0
Apr 15 12:05:20 work pulseaudio[19799]: [pulseaudio] alsa-util.c:   hw_ptr       : 0