seem something wrong with your dhclient which may cause loss of network connection and of course this lead to sound card underrun when there is the loss of network
do this occur when you listen to audio in your computer or just from audio from network ? Jan 30 12:42:13 bazilio-laptop dhclient: DHCPREQUEST of 192.168.0.28 on eth0 to 192.168.0.166 port 67 (xid=0x5d3ba2b9) Jan 30 12:42:13 bazilio-laptop dhclient: DHCPACK of 192.168.0.28 from 192.168.0.166 Jan 30 12:42:13 bazilio-laptop dhclient: bound to 192.168.0.28 -- renewal in 268 seconds. Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> (eth0): DHCPv4 state changed renew -> renew Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> address 192.168.0.28 Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> prefix 23 (255.255.254.0) Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> gateway 192.168.1.1 Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> hostname 'bazilio-laptop' Jan 30 12:42:13 bazilio-laptop NetworkManager[1247]: <info> nameserver '192.168.0.166' Jan 30 12:42:13 bazilio-laptop dbus[912]: [system] Activating service name='org. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1274115 Title: snd_pcm_avail() returned a value that is exceptionally large Status in “pulseaudio” package in Ubuntu: Incomplete Bug description: Sometimese sound begins stutter while listen to music or watching youtube. In syslog I see: Jan 29 16:31:08 bazilio-laptop pulseaudio[2155]: [alsa-sink-ALC271X Analog] alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 866944 bytes (4914 ms). Jan 29 16:31:08 bazilio-laptop pulseaudio[2155]: [alsa-sink-ALC271X 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. I'm using Kubuntu 13.10 $ uname -a Linux bazilio-laptop 3.11.0-15-generic #23-Ubuntu SMP Mon Dec 9 18:17:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux $ kde4-config --version Qt: 4.8.4 KDE Development Platform: 4.12.0 kde4-config: 1.0 $ pulseaudio --version pulseaudio 4.0 $ alsactl --version alsactl version 1.0.27.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1274115/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

