Re: [GnomeMeeting-list] Ekiga and KDE arts

[Yannick-GNU/Linux <sevmek free fr>]

Hi,

Le Sat, 13 May 2006 11:20:30 +0200
Stefan Stolz <s newslists googlemail com> a écrit :

> Am Freitag 12 Mai 2006 20:40 schrieb Yannick-GNU/Linux:
> > Hum... I'm not sure about anything here...
> > My guess is this is a Dmix bug in ALSA. Maybe having gdb output when ekiga
> > crash will show where the problem is (in libasound ?).
> How do i make gdb output please?
$ gdb ekiga

Then "run"

Then ekiga will show up, crash it and you'll get some lines in gdb showing where the crash occurs.
But this will be mostly irrevelant, as i strongly suspect you'll get the crash in libasound = in ALSA. This will be usefull for an ALSA devloper... and you'll have to compile ALSA with debug infos.

> 
> > As a (bad) workaround, can you try to increase values in the .asoundrc of
> > period_size and buffer_size ? (using ALSA, not arts, and DEFAULT in ekiga
> > settings)
> >
> > As an exemple, can you try 8192 for period_size and 16384 for buffer_size.
> > (2 occurences of each in the exemple file i provided in the wiki.ekiga.net)
> > Problem is this should induce more latency.
> Hmm, i tried it and now i have no sound with default, but ekiga don`t crashes 
> any more. I saw in the debug mode following errors:
> -->
> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
> Cannot initialize hardware parameter structure Datei oder Verzeichnis nicht 
> gefundenCannot set access type Datei oder Verzeichnis nicht gefundenCannot 
> set sample format Datei oder Verzeichnis nicht gefundenCannot set channel 
> count Datei oder Verzeichnis nicht gefundenCannot set sample rate Datei oder 
> Verzeichnis nicht gefundenCannot set period size Datei oder Verzeichnis nicht 
> gefundenCannot set periods to Datei oder Verzeichnis nicht gefundenCannot set 
> buffer_time to  400 ms Datei oder Verzeichnis nicht gefundenCannot set 
> period_time to 200 ms   Datei oder Verzeichnis nicht gefunden
> <--

Well, this error is reported by ALSA lib. The file pcm_params.c seems to me a bunch of tests to check if the parameters provided to ALSA are ok for your soundcard (again i'm not a dev, just guessing what i saw i this file). This probably means the values i gaved you are too big for your card.

You can try half of them , like 4096 and 8192; If it doesn't work again half 2048 and 4096. Or maybe multiple of the values in .asoundrc...

btw, would you give me the name of the chip or the mother board if it is integrated ?

But i guess you'll better downgrade to ALSA 1.0.9. , as i can't find usefull workaround, and seems noone here can help you... Or you can try to contact ALSA team.

Regards,
Yannick

> 
> Greets
> Stolzi
> 
> > The other way, is to try last CVS of ALSA, as they claim to have fixed a
> > bug in the dmix system wich gives same symptoms as yours. But this was
> > reported for ALSA 1.0.11, not your version...
> >
> > Exept that, i don't know what to do... but i'm not a dev, so you may get
> > better help from other people here.
> >
> > Regards,
> > Yannick
> >
> > Le Fri, 12 May 2006 19:23:34 +0200
> >
> > Stefan Stolz <s newslists googlemail com> a écrit :
> > > Am Freitag 12 Mai 2006 19:18 schrieb Yannick-GNU/Linux:
> > > > Hi,
> > > >
> > > > Can you provide more info on your system for deeper investigations ?
> > > >
> > > > Wich ALSA driver are you using ?
> > > > $ lsmod | grep "intel"
> > > >
> > > > This should be :
> > > > intel8x0 or intel8x0m or hda-intel
> > >
> > > This he says:
> > > # lsmod | grep "intel"
> > > snd_intel8x0           29852  2
> > > snd_ac97_codec         82336  1 snd_intel8x0
> > > snd_pcm                77576  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
> > > intel_agp              21020  1
> > > agpgart                31560  1 intel_agp
> > > snd                    48612  10
> > > snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
> > > snd_page_alloc         10120  2 snd_intel8x0,snd_pcm
> > >
> > > Thank you for help!
> > >
> > > Greets
> > > Stolzi
> > >
> > > > Regards,
> > > > Yannick
> > > >
> > > > Le Fri, 12 May 2006 18:52:41 +0200
> > > >
> > > > Stefan Stolz <s newslists googlemail com> a écrit :
> > > > > > - 2: Configure DMIX in ALSA, and make Arts and Ekiga use DMIX (see
> > > > > > wiki.ekiga.org for help)
> > > > >
> > > > > I have a new alsa version: 1.0.10rc3 the WIKI says i dont need this
> > > > > with this version. But i tried it at all with the same result.
> > > > > If i use "Alsa" and "default" the sound is very bad and then ekiga
> > > > > crushes. If i use "Alsa" and "IntelICH6" it works only if i didn`t
> > > > > run another app with sound.
> > > >
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