Public bug reported:
What I expect to happen: audio working like in Ubuntu 14.04
What is happening: programs cannot connect to pulseaudio server, the
server itself isn't crashing. For example, pavuctl hangs on "connecting
to pulseaudio", and all media applications are doing the same. It
sometimes happens that one application (which opened connection to PA
earlier) is still playing but new ones can't connect.
pulseaudio -k && pulseaudio
fixes this issue temporarly, until the next time it happens. The problem
occurs multiple times per session.
This is happening on 2 systems, one is not my own - a clean xubuntu
16.04 install - and the other is my own, where I tried various tweaks to
default.pa to fix the problem. None worked. This happens with a clean
default.pa too. I also tried installing oem-audio-hda-daily-lts-xenial-
dkms and that did not help either.
The errors reported in pulseaudio stderr are as following:
E: [alsa-sink-ALC892 Analog] alsa-sink.c: ALSA woke us up to write new data to
the device, but there was actually nothing to write.
E: [alsa-sink-ALC892 Analog] alsa-sink.c: Most likely this is a bug in the ALSA
driver 'snd_hda_intel'. Please report this issue to the ALSA developers.
E: [alsa-sink-ALC892 Analog] alsa-sink.c: We were woken up with POLLOUT set --
however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.
AUDIO STOPS WORKING BELOW THIS LINE, LONG TIME AFTER THE PREVIOUS
LINE IS PRINTED
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
E: [pulseaudio] shm.c: shm_open() failed: No such file or directory
^CE: [pulseaudio] shm.c: shm_unlink(/pulse-shm-3403108683) failed: No such
file or directory
E: [pulseaudio] shm.c: shm_unlink(/pulse-shm-1445609972) failed: No such file
or directory
lsb_release -rd
Description:Ubuntu 16.04.1 LTS
Release:16.04
apt-cache policy pulseaudio
pulseaudio:
Installed: 1:8.0-0ubuntu3.1
Candidate: 1:8.0-0ubuntu3.1
Version table:
*** 1:8.0-0ubuntu3.1 500
500 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:8.0-0ubuntu3 500
500 http://pl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
➜ ~ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family
High Definition Audio Controller (rev 04)
➜ ~ lsmod | grep snd
snd_usb_audio 176128 0
snd_usbmidi_lib36864 1 snd_usb_audio
snd_hda_codec_hdmi 53248 1
snd_hda_codec_realtek86016 1
snd_hda_codec_generic77824 1 snd_hda_codec_realtek
snd_hda_intel 40960 6
snd_hda_codec 135168 4
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 5
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
snd_pcm 106496 6
snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi32768 2 snd_usbmidi_lib,snd_seq_midi
snd_seq69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 3 snd_pcm,snd_seq
snd81920 23
snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore 16384 1 snd
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3.1
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/pcmC0D0p: gdr 25119 F...m pulseaudio
/dev/snd/controlC0: gdr 25119 F pulseaudio
/dev/snd/timer: gdr 25119 f pulseaudio
CurrentDesktop: XFCE
Date: Sun Dec 25 11:34:30 2016
InstallationDate: Installed on 2016-12-03 (21 days ago)
InstallationMedia
