** Branch linked: lp:~osomon/webbrowser-app/16.10-SRU1
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Title:
No audio from webbrowser-app in 16.10 U8 or U7 session
To manage notifications
jdstrand, is this something I can/should work around in the generated
apparmor profile for webbrowser-app, or better to fix in
apparmor-easyprof-ubuntu (I imagine other apps using the audio/microphone
policy groups might be affected too)?
oSoMoN: for now workaround it. this is fixed in snappy
** Branch linked: lp:~osomon/webbrowser-app/fix-1632620-sound-yakkety
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Title:
No audio from webbrowser-app in 16.10 U8 or U7 session
To manage
** Changed in: webbrowser-app (Ubuntu)
Status: Confirmed => In Progress
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Title:
No audio from webbrowser-app in 16.10 U8 or U7 session
** Also affects: apparmor-easyprof-ubuntu (Ubuntu)
Importance: Undecided
Status: New
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Title:
No audio from webbrowser-app in 16.10 U8
The above rule comes from the audio and microphone policy groups:
https://bazaar.launchpad.net/~ubuntu-security/apparmor-easyprof-ubuntu/trunk/view/head:/data/policygroups/ubuntu/1.0/audio#L10
The following rule in the browser’s apparmor profile is what causes the
audio manager to fail to initialize:
deny /{run,dev}/shm/pulse-shm* w, # deny unless we have to have
it
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oSoMoN, ah, so AudioManagerPulse fails to initialize, and then
it tries to create AudioManagerAlsa before the unique_ptr instance holding
AudioManagerPulse goes out of scope
that makes sense
that means chromium's fallback is buggy though, as
AudioManager::Get() will always return nullptr if
I’m seeing the following message in the console when starting
webbrowser-app:
[1013/154851:WARNING:audio_manager.cc(314)] Multiple instances of AudioManager
detected
[1013/154851:WARNING:audio_manager.cc(275)] Multiple instances of AudioManager
detected
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I can reliably reproduce the issue in a yakkety VM.
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Title:
No audio from webbrowser-app in 16.10 U8 or U7 session
To manage notifications
oSoMoN, works, and I have sound too
willcooke, good, so it’s just the browser
** Changed in: oxide
Status: New => Invalid
** Changed in: webbrowser-app (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: webbrowser-app (Ubuntu)
Assignee: (unassigned) => Olivier Tilloy
Oct 13 12:26:49 test-Inspiron-3137 kernel: [ 506.368904] audit_printk_skb: 63
callbacks suppressed
Oct 13 12:26:49 test-Inspiron-3137 kernel: [ 506.368906] audit: type=1400
audit(1476358009.176:78): apparmor="DENIED" operation="open"
profile="webbrowser-app"
@Will: could you please check if it’s just the browser, or anything
using an Oxide webview, that experiences the lack of sound?
You can do so by saving the following content as test.qml and opening it
in qmlscene:
import QtQuick 2.4
import com.canonical.Oxide 1.15
WebView {
width: 800
(Probably) relevant logs (from the log file attached):
ALSA lib conf.c:3823:(snd_config_update_r) cannot access file
/usr/share/alsa/alsa.conf
ALSA lib pcm.c:2450:(snd_pcm_open_noupdate) Unknown PCM default
[1012/100326:WARNING:alsa_util.cc(24)] PcmOpen: default,No such file or
directory
ALSA
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