Output from alsa-info.sh. Please let me know if I can provide with any other information.
** Attachment added: "alsa-info.txt.PMiN43f3W0" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1539967/+attachment/4576029/+files/alsa-info.txt.PMiN43f3W0 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1539967 Title: Audio skips (buffer underruns) intermittently but particularly when screen blanks Status in alsa-driver package in Ubuntu: Confirmed Bug description: Audio playback via ALSA (snd_intel_hda) & pulseaudio inevitably 'skips' (repeats buffer content) intermittently a few times each hour, and severely whenever the screen is blanked for inactivity. CPU load is low (mostly idle). I didn't have this problem with my previous fresh installation of Ubuntu (14.04.3 LTS) on this hardware. From dmesg, kernel appears to be using the TSC clocksource: [ 3.180127] clocksource: Switched to clocksource tsc Upon startup, Pulseaudio sees high resolution timers: I: [pulseaudio] main.c: Fresh high-resolution timers available! Bon appetit! When audio skips, alsa-sink.c logs a massive scheduling delay (e.g. 1070.00 ms > 15.99 ms) and also that "snd_pcm_avail() returned a value that is exceptionally large: 623124 bytes (1177 ms)" Currently running Ubuntu 15.10 Wily (fresh install). linux-sound-base: Installed: 1.0.25+dfsg-0ubuntu5 pulseaudio: Installed: 1:6.0-0ubuntu13 Audio output used is Built-in Audio Analogue Surround 5.1 (motherboard audio, Realtek ALC889A) Attaching log from pulseaudio -vvvv ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6 Uname: Linux 4.2.0-25-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl fglrx ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: chinf 7928 F...m pulseaudio /dev/snd/controlC0: chinf 7928 F.... pulseaudio /dev/snd/controlC1: chinf 7928 F.... pulseaudio CurrentDesktop: Unity Date: Sat Jan 30 18:17:01 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2015-12-11 (50 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HDA ATI SB Symptom_Jack: Green Line Out, Rear Symptom_Type: Sound works for a while, then breaks Title: [GA-MA790GP-DS4H, Realtek ALC889A, Green Line Out, Rear] fails after a while UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/16/2009 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F6 dmi.board.name: GA-MA790GP-DS4H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd09/16/2009:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA790GP-DS4H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA790GP-DS4H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-MA790GP-DS4H dmi.sys.vendor: Gigabyte Technology Co., Ltd. mtime.conffile..etc.modprobe.d.alsa.base.conf: 2016-01-12T14:13:00.166647 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1539967/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
