Public bug reported:
I'm using a ThinkPad T450s with Ubuntu 16.04. This problem already
existed when it ran 15.10.
Regardless if the notebook is connected to AC or not, external speakers are
connected or not, the audio output seems put to sleep somehow after ~6 seconds.
Whenever a process tries to output audio, it needs approx. 4 seconds for the
audio to actually come out.
Despite this laggy behaviour, it is really annoying because most applications
freeze during this time.
Besides different apps of daily working are affected by this
(Thunderbird, MPlayer, VLC, ...), this even applies to the "volume
changing sound" when using the volume -/+ keys. In detail this means: if
I press the volume "-" key multiple times, the volume overlay freezes
for approx. 4 seconds and then all requested volume change sounds are
played altogether.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 4.7.0-040700rc7-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: buerger 2941 F.... pulseaudio
/dev/snd/controlC1: buerger 2941 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Sep 9 09:05:45 2016
InstallationDate: Installed on 2015-09-15 (359 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Internes Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: None of the above
Title: [20BX000XGE, Realtek ALC3232, Speaker, Internal] Playback problem
UpgradeStatus: Upgraded to xenial on 2016-04-22 (139 days ago)
dmi.bios.date: 05/25/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET60WW (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BX000XGE
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrJBET60WW(1.24):bd05/25/2016:svnLENOVO:pn20BX000XGE:pvrThinkPadT450s:rvnLENOVO:rn20BX000XGE:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BX000XGE
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1621759
Title:
[20BX000XGE, Realtek ALC3232, Speaker, Internal] audio "sleeps", needs
~4 sec to resume, blocking UI
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