Re: [Linphone-users] Re: My machine just rebooted!

[Jason A. Pattie]

Ged Haywood wrote:

> Hi there,
>
> On Thu, 20 Nov 2003 address@hidden wrote:
>  
>
> > [snip]
> >   5.  My machine just rebooted! (Jason A. Pattie)
> >   6.  Rebooting (Jason A. Pattie)
> >    
>
> Please keep the same subject line for the same thread!
> How is one to know what it's about if you keep changing it?
>
>  
Sorry.  When I discovered the next "stuff", I went to my linphone-users 
folder, but my original mailing had not come in yet.  So, I just created 
a new mail message.  I suppose that I could have looked it up in my Sent 
folder.

> > [snip]
> > ------------------------------
> >
> > Message: 5
> > Date: Thu, 20 Nov 2003 13:51:16 -0600
> > From: "Jason A. Pattie" <address@hidden>
> > Subject: [Linphone-users] My machine just rebooted!
> > To: address@hidden
> > Message-ID: <address@hidden>
> > Content-Type: text/plain; charset=us-ascii; format=flowed
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > [snip]
> >    
>
> Extraneous garbage left in for a reason - see below.
>
>  
>
> > I've been having this problem lately, even when testing things under
> > Windows on the same machine.  I've noticed that it only happens when I
> > use my USB headset (Plantronics DSP 400).
> >    
>
> USB support is still experimental under Linux.  What kernel version are
> you using?  You should be using the latest version you possibly can,
> try version 2.4.23-rc2 or even a 2.6.0-test version.  I've had (mixed)
> success with 2.6.0-test5 but again see below.
>  

Hmm.  I was using 2.4.21.  I'm going to attempt to run it on a much 
better machine than my laptop using 2.4.22.  Does it matter if the 
kernel comes from Debian sources or www.kernel.org sources?

> > I can't get good audio quality from other SIP and IAX clients that
> > only support OSS devices.
> >    
>
> AFAICT that's normal for OSS.  Use ALSA.  If the client doesn't support
> it, get a different client.
>
>  
>
> > Now with the latest version of linphone (0.12.1), I am able to finally
> > test using my USB headset.  However, the audio starts out good, then a
> > few seconds, or sometimes almost immediately, the audio starts getting
> > choppy and distorted and seems to repeat itself a lot, then it might
> > clear up for a second or two and then get bad again.
> >    
>
> Is this with OSS?  If so forget it and use ALSA.  
>
>  
No.  This is with ALSA chosen as the sound device for linphone.

> > The last time I tried it, something must have overloaded my laptop,
> > and it rebooted.  This has happened before with other software phone
> > clients using the same headset (under Windows, too).  I don't know if
> > this is a problem to do with ALSA sound drivers for my device, or what.
> >    
>
> This is likely to be a USB problem.  I have had many problems like that
>  

I'm thinking the same as well.

> with loading, using and (especially) unloading USB modules.  It was worst
> with kernels in the 2.4.18 to 2.4.20 era, better in 2.6.0-test5 but then
> seems to have deteriorated in later 2.6.0-test kernels.  It may be better
> in 2.4.23-rc2 but basically I've given up with USB under Linux until they
> get it sorted out.  It seems like the USB developers don't read the users'
> mail very much so I'm not holding my breath.
>
>  
>
> > - --
> > Jason A. Pattie
> > address@hidden
> > Xperience, Inc. (http://www.xperienceinc.com)
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.2.3 (GNU/Linux)
> > Comment: Using GnuPG with Debian - http://enigmail.mozdev.org
> >
> > iD8DBQE/vRszuYsUrHkpYtARAm0uAJ0QVPIyeh7isUVan9D0YTLxo6/JiACfQyNh
> > 2fXl8RIV6iq9oz8pzXC+N3E=
> > =PSG9
> > -----END PGP SIGNATURE-----
> >    
>
> All this extraneous crap makes it *really* difficult for those of us who
> get thousands of mail messages per day and have to subscribe to the digest
> versions of the mailing lists and a good spam filter (like SpamAssassin:).
>
> Later message.  It took 63 lines in the Digest (not all your fault:) to say:
>
>  
>
> > I found out something more.  It always happens when I go to "hangup"
> >    
>
> Sounds to me like you are using USB hotplugging.  Don't do that unless you
> can be reasonably confident that Linux won't crash when you load or unload
> any of your USB modules.
>  
Don't know.  It's an install of Debian Woody "upgraded" to a mixture of 
testing/unstable.  I don't remember seeing anything about USB hotplug, 
but it's probably in there somewhere.


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