Arch Linux

ibraheemmoosa

Member

Registered: 2018-01-26

Posts: 1

No sound in firefox, getting seccomp sandbox violation.

Hi, today audio in my firefox stopped working. I get these errors in terminal when I play a video in youtube.

Sandbox: seccomp sandbox violation: pid 12756, tid 15165, syscall 16, args 44 2147767296 139979683517816 0 0 0.
Sandbox: seccomp sandbox violation: pid 12756, tid 15165, syscall 16, args 44 2147767296 139979683517832 0 0 0.
[Child 12756, MediaPlayback #1] WARNING: 7f4f852f1c40 OpenCubeb() failed to init cubeb: file /build/firefox/src/mozilla-unified/dom/media/AudioStream.cpp, line 387
[Child 12756, MediaPlayback #3] WARNING: Decoder=7f4f901b8c00 [OnMediaSinkAudioError]: file /build/firefox/src/mozilla-unified/dom/media/MediaDecoderStateMachine.cpp, line 3642

It is same when I try to play a song in bandcamp or soundcloud. However audio is working in flash content. Also audio is working in other applications.
I am not sure what to do. I will appreciate any help.
Thank you.

Spider.007

Member

Registered: 2004-06-20

Posts: 1,176

Re: No sound in firefox, getting seccomp sandbox violation.

I have the exact same issue. Doesn't work if I simply play a .mp4 either and no icon is displayed in the tab. Looking at https://wiki.mozilla.org/Security/Sandbox/Seccomp the workaround to export MOZ_DISABLE_GMP_SANDBOX=1 doesn't work

Last edited by Spider.007 (2018-01-26 14:28:23)

B1omman

Member

Registered: 2016-02-16

Posts: 36

Re: No sound in firefox, getting seccomp sandbox violation.

I guess that none of you are using PulseAudio. There is a bug that will be fixed in the next release, but a patch is available:
https://bugzilla.mozilla.org/show_bug.cgi?id=1430274

Spider.007

Member

Registered: 2004-06-20

Posts: 1,176

Re: No sound in firefox, getting seccomp sandbox violation.

I guess that none of you are using PulseAudio. There is a bug that will be fixed in the next release, but a patch is available:
https://bugzilla.mozilla.org/show_bug.cgi?id=1430274

Thanks, that's probably it. I do indeed not use PulseAudio because it installs usr/bin/pacmd which breaks my pacm<tab> autocomplete to use pacman

B1omman

Member

Registered: 2016-02-16

Posts: 36

Re: No sound in firefox, getting seccomp sandbox violation.

... because it installs usr/bin/pacmd which breaks my pacm<tab> autocomplete to use pacman

O_o
This must be the oddest reason I've ever seen to not install PulseAudio, as well as it sounds like a non-problem.
In case of bash, you could set show-all-if-ambiguous in  ~/.inputrc. In Zsh I can't even see how it would break completion, and I'm sure other shells have means to deal with any such problem as well.

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: No sound in firefox, getting seccomp sandbox violation.

How about just aliasing pacm to pacman? You don't even have to hit <TAB> then

---

No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles

NoSuck

Member

Registered: 2015-03-04

Posts: 157

Website

Re: No sound in firefox, getting seccomp sandbox violation.

I do indeed not use PulseAudio because it installs usr/bin/pacmd which breaks my pacm<tab> autocomplete to use pacman

I like your thinking.

---

Pure ALSA Loopback