Comment 24 for bug 464442

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.
```