PulseAudio 100% cpu usage under KDE

Bernard Mentink bmentink at gmail.com
Thu Jun 30 13:58:22 PDT 2016


> I think you can remove x bit from pulseaudio binary and be done with it.
Not sure what you mean by this ... do you mean "chmod -x pulseaudio"?

It is great chromium can play audio, but not having gnome-settings-daemon
support for changing audio device is a pain ... I have to use sysctl for
all my sound settings ...

Cheers



On Fri, Jul 1, 2016 at 7:24 AM, Konstantin Kulikov <k.kulikov at naukanet.ru>
wrote:

> Out of all packages you can only rebuild gtk-vnc without PULSEAUDIO
> support.
> If sound in chromium works for you, I think you can remove x bit from
> pulseaudio binary and be done with it.
>
> On Wed, Jun 29, 2016 at 11:27 PM Bernard Mentink <bmentink at gmail.com>
> wrote:
>
>> Hi Matt,
>>
>> Thanks for the update. Pulseaudio has been the bane of many people for a
>> longtime .... seems it would be best without it if possible.
>>
>> Is there anyway to get the Gnome sound setting UI (for example) to use
>> OSS instead of pulse?  .... or maybe some shim layer between pulse API
>> calls and OSS ... (not ideal I know)
>>
>> Actually, I don't even know if the sound system is OSS in DFly, I know it
>> is in FreeBSD .... documentation is a bit missing on the sound side I am
>> afraid.
>>
>> Matt, very impressed with the speed/responsiveness of the kernel and
>> Hammer ..... awesome work ...
>>
>> Konstantin:
>>
>> First comand returns:
>>  DFly% pkg query -i "%n - %Ok: %Ov" | grep -i pulse
>> alsa-plugins - PULSEAUDIO: off
>> chromium - PULSEAUDIO: off
>> espeak - PULSEAUDIO: off
>> ffmpeg - PULSEAUDIO: off
>> freerdp - PULSEAUDIO: off
>> gtk-vnc - PULSEAUDIO: on
>> libao - PULSEAUDIO: off
>> libcanberra-gtk3 - PULSEAUDIO: off
>> ptlib - PULSEAUDIO: off
>> pulseaudio - ALSA: off
>> pulseaudio - AVAHI: on
>> pulseaudio - BASH: off
>> pulseaudio - GCONF: off
>> pulseaudio - JACK: off
>> pulseaudio - SIMD: on
>> pulseaudio - ZSH: off
>> sdl - PULSEAUDIO: off
>> speech-dispatcher - PULSEAUDIO: off
>> spice-gtk - PULSEAUDIO: off
>>
>>
>> Second Command:
>>
>> pulseaudio-8.0: gnome-settings-daemon-3.18.2_2
>> pulseaudio-8.0: gnome-shell-3.18.4_2
>> pulseaudio-8.0: gtk-vnc-0.5.4_1
>> pulseaudio-8.0: empathy-3.12.11_1
>>
>>
>> Cheers,
>> Bernie
>>
>> On Thu, Jun 30, 2016 at 5:38 AM, Matthew Dillon <dillon at backplane.com>
>> wrote:
>>
>>> We haven't had any luck making our sound driver ioctls 100% compatible
>>> with linux.  The linux code is totally undocumented so its hard to figure
>>> out some of the buffering counters (used for sound synchronization with
>>> video mainly) are supposed to work.  I can make it not eat 100% cpu in
>>> chrome and firefox, but other use cases seem to blow up and I don't know
>>> why.
>>>
>>> -Matt
>>>
>>> On Wed, Jun 29, 2016 at 1:45 AM, Bernard Mentink <bmentink at gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> Thanks for that. Actually, I want to use Gnome rather than KDE.
>>>>
>>>> I am finding that with Gnome I can have sound from Chromium/Youtube
>>>>  etc, but when I call up the Gnome sound-settings tool, then pulseaudio
>>>> get's launched and used 100% cpu and crashes Gnome eventually ...
>>>>
>>>> Can I re-compile some lib in Gnome that does away with pulse?
>>>>
>>>> Cheers
>>>>
>>>> On Wed, Jun 29, 2016 at 7:20 PM, Konstantin Kulikov <
>>>> k.kulikov at naukanet.ru> wrote:
>>>>
>>>>> Hey.
>>>>> Can't say why pulseaudio doesn't work, but IIRC you can rebuild
>>>>> kdelibs without pulseaudio support and use other audio backend like
>>>>> vlc/gstreamer.
>>>>> Hope this helps.
>>>>>
>>>>> On Tue, Jun 28, 2016 at 10:26 PM Bernard Mentink <bmentink at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> I also notice this bug report from 6 months ago, is it related?
>>>>>> http://bugs.dragonflybsd.org/issues/2881
>>>>>>
>>>>>> Cheers,
>>>>>> Bernie
>>>>>>
>>>>>> On Mon, Jun 27, 2016 at 12:36 PM, Bernard Mentink <bmentink at gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> HI all,
>>>>>>>
>>>>>>> I thought I would open a separate thread on this issue.
>>>>>>>
>>>>>>> When I load the* snd_hda* module  and play some sound, the
>>>>>>> pulseaudio process uses 100% of one CPU core (I have 4), however the sound
>>>>>>> is fine. Even no playing anything, pulse is stuck at 100%
>>>>>>>
>>>>>>> Is there anyway to get pulse to work correctly?
>>>>>>>
>>>>>>> My hardware is an HP Desktop and sysctl reports the audio device as:
>>>>>>>
>>>>>>> pcm0: <Realtek ALC662 (Analog 2.0+HP/2.0)> at nid 20,27 and 24,25,26
>>>>>>> on hdaa0
>>>>>>> pcm1: <ATI R6xx (HDMI)> at nid 3 on hdaa1
>>>>>>> pcm0: <ATI R6xx (HDMI)> at nid 3 on hdaa0
>>>>>>>
>>>>>>>
>>>>>>> As far as I can tell, the Realtek device support s 44.1K,48K and 96K
>>>>>>> sampling, so down-sampling should not be an issue.
>>>>>>>
>>>>>>> All KDE sees is the "pulse" device with VLC backend.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Bernie
>>>>>>>
>>>>>>> PS: Other users have had the same issue ....
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>> Life is a sexually transmitted disease with a 100% mortality rate.
>>>>>>>
>>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>> Life is a sexually transmitted disease with a 100% mortality rate.
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>> Life is a sexually transmitted disease with a 100% mortality rate.
>>>>
>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>
>>>
>>>
>>
>>
>> --
>>
>> -------------------------------------------------------------------------------------------------------------------------------------
>> Life is a sexually transmitted disease with a 100% mortality rate.
>>
>> -------------------------------------------------------------------------------------------------------------------------------------
>>
>


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