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SDNick484
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PostPosted: Mon Jun 11, 2012 3:50 pm    Post subject: Pulseaudio & DE's Reply with quote

So I'm not sure what happened, but on a system I recently updated to Gnome 3, audio has suddenly stopped functioning properly. I'm not exactly sure what the cause is, although I have strong reason to believe it's pulse related. The system is access via CLI over 80% of the time, so I don't really need a desktop environment, although it's convenient. At this point, I'm fairly certain the issue is related to pulseaudio (which I've never had good luck with), so I'm wondering what are my options for getting rid of pulseaudio? Am I able to continue with Gnome 3 using just ALSA (like in Gnome 2), or does dropping pulse mean I need to find an alternate DE if I want sound? Am I able to use KDE without pulse? And on a side note, can I drop NetworkManager too if I go the KDE route?
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VoidMage
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PostPosted: Mon Jun 11, 2012 6:06 pm    Post subject: Reply with quote

Could you start with defining what does "audio has suddenly stopped functioning properly" mean for you ?
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SDNick484
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PostPosted: Mon Jun 11, 2012 8:48 pm    Post subject: Reply with quote

VoidMage wrote:
Could you start with defining what does "audio has suddenly stopped functioning properly" mean for you ?


Something has caused my MPD configuration to stop working via ALSA. I am seeing the error, "Failed to open ALSA device 'plug:mix': Device or resource busy". I am also no longer getting sound in Gnome through my audio player (Clementine) or mplayer. I have not made any changes to the hardware, kernel, or ALSA config files. The only audio related updates I've emerged recently have been pulseaudio. Personally I don't feel pulseaudio is bringing anything of value to the table, so ideally I'd like to go on without it as I had been doing for the last several years.

EDIT: Before anyone suggests it, I am definitely not on mute (checked via the new and extremely limited gnome-control-center) and the speakers work fine (tested with a laptop using the same audio cable/speakers).
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kernelOfTruth
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PostPosted: Mon Jun 11, 2012 9:17 pm    Post subject: Reply with quote

not sure if it offers a configuration without pulse at all

but try to emerge with -pulseaudio


if anything else fails: either use pulseaudio or change DE
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SDNick484
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PostPosted: Mon Jun 11, 2012 9:37 pm    Post subject: Reply with quote

Does anyone know if MATE requires pulseaudio and/or NetworkManager?
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kernelOfTruth
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PostPosted: Mon Jun 11, 2012 10:28 pm    Post subject: Reply with quote

SDNick484 wrote:
Does anyone know if MATE requires pulseaudio and/or NetworkManager?


dunno but take a look at the ebuilds:

https://git.sabayon.org/overlays/for-gentoo.git/


didn't know mate is the gnome2 fork/continuation

(https://forums.gentoo.org/viewtopic-t-896166-start-0-postdays-0-postorder-asc-highlight-.html)
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yngwin
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PostPosted: Tue Jun 12, 2012 2:18 pm    Post subject: Reply with quote

KDE certainly does not require pulseaudio or NetworkManager.
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VoidMage
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PostPosted: Tue Jun 12, 2012 2:45 pm    Post subject: Reply with quote

yngwin wrote:
KDE certainly does not require pulseaudio or NetworkManager.

In pulseaudio case: require ? no; use/prefers - definitely.
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aCOSwt
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PostPosted: Tue Jun 12, 2012 3:08 pm    Post subject: Reply with quote

yngwin wrote:
KDE certainly does not require pulseaudio.

While this is absolutely true, if you get into trouble with any officially supported phonon-backend... phonon-devs will invariably answer that you should install pulse ! :evil:
- Device selection inefficient with phonon-vlc when multiple hardware devices ? Install pulse !
- Resampling problems when using phonon-gstreamer ? : Install pulse !

Not to forget the most hilarious :

- How to redirect output to JACK with phonon-vlc / phonon-gstreamer ? : Install Pulse ! :lol:
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franzf
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PostPosted: Wed Jun 13, 2012 6:20 am    Post subject: Reply with quote

http://wm161.net/2012/05/16/musings-on-the-linux-audio-stack/
The devs of phonon-gstreamer consider to drop support for alsa and oss and make pulseaudio the one and only backend. I found it quite funny, that Trever asks how many people would support the decision, but ignores the fact that there are still problems (pulse does not work here, too!). Saying it's the distribution's job to offer a working pulseaudio-implementation is not really helpful for the _user_.
(And I don't want to mention, that the two phonon-gstreamer-devs I know - Trever and Colin Guthrie - are developing for gnome and pulseaudio. So no wonder they want to get this into kde, too.)

So when this really happens, the only way for a pulse-free desktop will be to use phonon-vlc. As I had problems with my OSS4-setup, they fixed it and also added support for jack :) I think this way it should not be a problem to directly output to jack. If you have problems (without pulse) you can test with phonon-vlc-9999.
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