An issuue still present in Ubuntu 16.04.5.
```
[15:38:51]
[root@ThinkPad/var/log]#grep "alsa-sink-CX20751/2 Analog" syslog 
Feb 27 14:58:50 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Function snd_pcm_avail() returns a value that is extraordinarily large: 370196 байтів (2098 мс).
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Most likely this is a bug in the ALSA driver «snd_hda_intel». Please report this issue to the ALSA developers.
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: snd_pcm_dump():
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Soft volume PCM
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Control: PCM Playback Volume
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: min_dB: -51
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: max_dB: 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: resolution: 256
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Its setup is:
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   stream       : PLAYBACK
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   access       : MMAP_INTERLEAVED
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   format       : S16_LE
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   subformat    : STD
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   channels     : 2
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   rate         : 44100
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   exact rate   : 44100 (44100/1)
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   msbits       : 16
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   buffer_size  : 16384
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_size  : 8192
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_time  : 185759
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   tstamp_mode  : ENABLE
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   tstamp_type  : MONOTONIC
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_step  : 1
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   avail_min    : 15680
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_event : 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   start_threshold  : -1
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   stop_threshold   : 4611686018427387904
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   silence_threshold: 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   silence_size : 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   boundary     : 4611686018427387904
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Slave: Hardware PCM card 1 'HDA Intel PCH' device 0 subdevice 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c: Its setup is:
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   stream       : PLAYBACK
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   access       : MMAP_INTERLEAVED
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   format       : S16_LE
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   subformat    : STD
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   channels     : 2
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   rate         : 44100
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   exact rate   : 44100 (44100/1)
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   msbits       : 16
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   buffer_size  : 16384
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_size  : 8192
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_time  : 185759
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   tstamp_mode  : ENABLE
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   tstamp_type  : MONOTONIC
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_step  : 1
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   avail_min    : 15680
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   period_event : 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   start_threshold  : -1
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   stop_threshold   : 4611686018427387904
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   silence_threshold: 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   silence_size : 0
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   boundary     : 4611686018427387904
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   appl_ptr     : 709483539
Feb 27 14:58:51 ThinkPad pulseaudio[9613]: [alsa-sink-CX20751/2 Analog] alsa-util.c:   hw_ptr       : 709559704
[15:39:03]
[root@ThinkPad/var/log]#uname -a
Linux ThinkPad 4.15.0-45-generic #48~16.04.1-Ubuntu SMP Tue Jan 29 18:03:48 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
[15:40:01]
[root@ThinkPad/var/log]#cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k4.15.0-45-generic.
```