Re: SV: Problems with sound on thin clients (Was: Unidentified subject!)

[George <joje47@yahoo.se>]

Hi Steven,

cat /proc/version gives;
Linux version 2.6.32-5-486 (Debian 2.6.32-41) (ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 Mon Jan 16 15:32:33 UTC 2012


I also made an alsa report. You can find it here;

http://www.alsa-project.org/db/?f=ec463063115a4c45d1682be89d1675dddf621614

I used an alsa tool to compile that report. Very handy actually. I found it here;
https://wiki.ubuntu.com/Audio/AlsaInfo

The most annoying thing is that this client worked flawlesly before I upgraded the chroot the other day. I guess it would be possible to revert the upgrade, but according to my experience its rarely that easy. Linux soundsystem can be a nightmare if it starts messing around..

Regards  /George






--- Den tors 2012-03-22 skrev Steven Chamberlain <steven@pyro.eu.org>:

Från: Steven Chamberlain <steven@pyro.eu.org>
Ämne: Re: SV: Problems with sound on thin clients (Was: Unidentified subject!)
Till: "George" <joje47@yahoo.se>
Kopia: debian-edu@lists.debian.org
Datum: torsdag 22 mars 2012 14:15

Hi George,

Here was the relevant stuff from your error log:
> Mar 22 09:03:20 ltsp24 pulseaudio[2663]: alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: -655328 bytes (-3715 ms).
> Mar 22 09:03:20 ltsp24 pulseaudio[2663]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers.

And from https://bugzilla.redhat.com/show_bug.cgi?id=506075 :
> I can't listen to music (or watch video or Flash)
> more than a couple of minutes, before pulseaudio reports the snd_pcm_avail()/
> snd_pcm_delay() error and starts eating 99% CPU.

Or this:
https://bugzilla.redhat.com/show_bug.cgi?id=485734
> intel-hda: snd_pcm_avail() overflows

This could be the problem you're seeing, an Intel ALSA driver bug that
someone reported in Fedora 11 2.6.29 kernels, but apparently fixed in
Fedora 12's 2.6.31.


I'm just curious what kernel was running on the thin client (or what is
running on the booksized PC now).  Could you please show me the output of:

$ cat /proc/verison

Thanks,
Regards,
--
Steven Chamberlain
steven@pyro.eu.org