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From: caldercay on 9 Jan 2010 16:42
On Jan 8, 4:55 pm, caldercay <calder....(a)gmail.com> wrote:
> openSUSE 11.2 x86_64 (ADM64), KDE4 ... As in the Subject, after the
> machine boots up and I'm logged in, there is no sound from local software
> (video or audio) or web-based (as in Pandora, youtube, etc).
[snipped]

It looks like the issue is with the VLC media player, and
what is strange, it only has to do with one AVI file.

With all other AVI files, when I run "lsof...", the
output is typically this:

user(a)mach:~> lsof /dev/dsp* /dev/audio* /dev/mixer* /dev/snd/*
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
kmix 10040 user 11u CHR 116,7 0t0 37391 /dev/snd/controlC0
vlc 10272 user mem CHR 116,5 37339 /dev/snd/pcmC0D0p
vlc 10272 user 15r CHR 116,2 0t0 37269 /dev/snd/timer
vlc 10272 user 16u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
user(a)mach:~>

.... *BUT*, when I play this one particular AVI video
and run the "lsof" command, we see this:

user(a)mach:~> lsof /dev/dsp* /dev/audio* /dev/mixer* /dev/snd/*
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
kmix 10040 user 11u CHR 116,7 0t0 37391 /dev/snd/controlC0
vlc 10272 user mem CHR 116,5 37339 /dev/snd/pcmC0D0p
vlc 10272 user 14u CHR 116,2 0t0 37269 /dev/snd/timer
vlc 10272 user 15r CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
xdg-scree 10393 user 14r CHR 116,2 0t0 37269 /dev/snd/timer
xdg-scree 10393 user 15u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
xprop 10415 user 14r CHR 116,2 0t0 37269 /dev/snd/timer
xprop 10415 user 15u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
user(a)mach:~>

When this one particular AVI is played, you can see that
the "xprop" and "xdg-screensaver" processes are associated
to /dev/snd/timer and /dev/snd/pcmC0D0p. ... as a result,
those two processes have those devices "locked", which is
why sound will not play after this particular AVI is played.

With all other AVI files, "xprop" and "xdg-screensaver"
processes are launched by VLC, but they aren't associated
to /dev/snd/timer and /dev/snd/pcmC0D0p.

I also noticed that when I "Quit" VLC, the two processes
(xprop and xdg-screensaver) linger ... AAMOF, for every
AVI file that is opened and played, two new xprop and
xdg-screensaver processes are launched. So, if I've
opened and played 8 AVI files, there will be 8 different
"xprop" and "xdg-screensaver" processes running (even
after I quit VLC).

So this appears to be a bug with the VLC player. And I
find it strange that this one particular AVI file affects
VLC to associate "xprop" and "xdg-screensaver" to the
two devices /dev/snd/timer and /dev/snd/pcmC0D0p.

To "recover" the audio, I simply run: "killall -9 xprop xdg-
screensaver"
From: rafter22 on 10 Jan 2010 10:11
On 01/09/2010 04:42 PM, caldercay wrote:
> On Jan 8, 4:55 pm, caldercay <calder....(a)gmail.com> wrote:
>> openSUSE 11.2 x86_64 (ADM64), KDE4 ... As in the Subject, after the
>> machine boots up and I'm logged in, there is no sound from local software
>> (video or audio) or web-based (as in Pandora, youtube, etc).
> [snipped]
>
> It looks like the issue is with the VLC media player, and
> what is strange, it only has to do with one AVI file.
>
> With all other AVI files, when I run "lsof...", the
> output is typically this:
>
> user(a)mach:~> lsof /dev/dsp* /dev/audio* /dev/mixer* /dev/snd/*
> COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
> kmix 10040 user 11u CHR 116,7 0t0 37391 /dev/snd/controlC0
> vlc 10272 user mem CHR 116,5 37339 /dev/snd/pcmC0D0p
> vlc 10272 user 15r CHR 116,2 0t0 37269 /dev/snd/timer
> vlc 10272 user 16u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
> user(a)mach:~>
>
> ... *BUT*, when I play this one particular AVI video
> and run the "lsof" command, we see this:
>
> user(a)mach:~> lsof /dev/dsp* /dev/audio* /dev/mixer* /dev/snd/*
> COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
> kmix 10040 user 11u CHR 116,7 0t0 37391 /dev/snd/controlC0
> vlc 10272 user mem CHR 116,5 37339 /dev/snd/pcmC0D0p
> vlc 10272 user 14u CHR 116,2 0t0 37269 /dev/snd/timer
> vlc 10272 user 15r CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
> xdg-scree 10393 user 14r CHR 116,2 0t0 37269 /dev/snd/timer
> xdg-scree 10393 user 15u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
> xprop 10415 user 14r CHR 116,2 0t0 37269 /dev/snd/timer
> xprop 10415 user 15u CHR 116,5 0t0 37339 /dev/snd/pcmC0D0p
> user(a)mach:~>
>
> When this one particular AVI is played, you can see that
> the "xprop" and "xdg-screensaver" processes are associated
> to /dev/snd/timer and /dev/snd/pcmC0D0p. ... as a result,
> those two processes have those devices "locked", which is
> why sound will not play after this particular AVI is played.
>
> With all other AVI files, "xprop" and "xdg-screensaver"
> processes are launched by VLC, but they aren't associated
> to /dev/snd/timer and /dev/snd/pcmC0D0p.
>
> I also noticed that when I "Quit" VLC, the two processes
> (xprop and xdg-screensaver) linger ... AAMOF, for every
> AVI file that is opened and played, two new xprop and
> xdg-screensaver processes are launched. So, if I've
> opened and played 8 AVI files, there will be 8 different
> "xprop" and "xdg-screensaver" processes running (even
> after I quit VLC).
>
> So this appears to be a bug with the VLC player. And I
> find it strange that this one particular AVI file affects
> VLC to associate "xprop" and "xdg-screensaver" to the
> two devices /dev/snd/timer and /dev/snd/pcmC0D0p.
>
> To "recover" the audio, I simply run: "killall -9 xprop xdg-
> screensaver"

That is very interesting. I never associated it with any certain avi
file. I just never had any sound when I booted up the PC with KDE 4. KDE
3.5 worked fine.

However, I'll stick with Gnome.

Glad you found a fix and hope you reported the bug.
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