[CentOS] Acer 5920 audio chip does not work in CentOS 5.2?

[hce]

On 7/4/08, William L. Maltby <CentOS4Bill at triad.rr.com> wrote:
>
>  On Fri, 2008-07-04 at 12:41 +1000, hce wrote:
>  > On Fri, Jul 4, 2008 at 12:18 AM, William L. Maltby
>  > <CentOS4Bill at triad.rr.com> wrote:
>  > >
>  > > On Thu, 2008-07-03 at 07:57 -0500, Alex White wrote:
>  > >> <snip>
>  > >
>
> > >><snip>
>
>
>  > >
>  > > /proc delivers the *truth*. And for some things, settings can be changed
>  > > there that are not easily addressed through utilities.
>  > > .....
>  > > After this, I'll pop in Mark Knoppfler's "Shangri-La" and diff the two
>  > > files.
>  > > # cd /proc/asound
>  > > # find . -type f -exec echo {} \; -exec cat {} \; >/tmp/asound
>  >
>  > I guess alsa and /proc are all fine on my machine, but I've got a
>  > blank result on /proc/asound running following find, no sure if that
>  > was significant:
>
>
> Blank result? I'm skeptical about that. <*scratching head*>
>
>  >
>  > [asound]$ find . -type f -exec echo {} \; -exec cat {} \; > /tmp/asound
>
>
> The /tmp/asound file should contain at least the file names that it
>  found. And I can't believe that trying to play something would remove
>  the contents of those files. 1) It would have to be root and 2) IIRC, we
>  can't remove stuff in /proc as it is from the kernel and not a real file
>  system and 3) We could only change the contents of *some* things.
>
>  I tested the above command with a C&P and it worked. Maybe you had a
>  typo or the frustration is getting to you and you examined the wrong
>  file?

I used above command with a C&P as well. I've also verified the
command to my another FC7 box which has sound worked well, it also
shown a blank result as well.

>
>  > $ rpm -qa | grep -i alsaalsa-utils-1.0.14-3.rc4.el5
>  > alsa-lib-devel-1.0.14-1.rc4.el5
>  > alsa-lib-1.0.14-1.rc4.el5
>  >
>  > ]$ rpm --verify  alsa-lib-1.0.14-1.rc4.el5.i386
>  > alsa-utils-1.0.14-3.rc4.el5.i386 | echo $?
>  > 0
>
>
> The above command s/b rpm --verify .... ; echo $?
>  ----------------------------------------|
>
>  If you meant "||", it would still be logically incorrect as we want to
>  see the return value, regardless.

Actually, I tried without echo $? first, it display lots of
parameters, seems file. I can try the echo $? again, what is the
correct command for it? Is following command correct?

rpm --verify  alsa-lib-1.0.14-1.rc4.el5.i386
lsa-utils-1.0.14-3.rc4.el5.i386; echo $?

>
>  >
>  > [asound]$ ls
>  > card0  cards  devices  Intel  modules  oss  pcm  seq  timers  version
>  >
>  > [asound]$ pwd && cat modules && cat cards /proc/asound
>  >  0 snd_hda_intel
>  >  0 [Intel          ]: HDA-Intel - HDA Intel
>  >                       HDA Intel at 0xf0500000 irq 66
>  >
>  >
>  > I've also tried to ls in /proc/asound/Intel:
>  >
>  > $ ls
>  > codec#0  codec#1  id  oss_mixer  pcm0c  pcm0p  pcm2c
>  >
>  > Seems, all drivers there, is there any command such as cat to verify
>  > low level drivers by playing a sound?
>
>
> You need an application to do that. I've only used various Gnome desktop
>  facilities. The file manager (Nautilus?) should do that when you double
>  click a sound file. I'll test ... BRB
>
>  Yep. I went to /usr/share/sounds/alsa, using file manager, and it opened
>  totem and played the sounds. This means that you could open totem
>  directly, or any other sound playing application and try it.
>  Unfortunately, unless we suspect broken applications are the problem,
>  this really only is the same as what you tried to do originally, less
>  the CD.

I can use vlc to play the *.wav or other audio files, but I tried to
figure out where is the block or missing link with the audio. Right
now, no sound when I run vlc to play audio files. If I could check and
play in some means with low level driver first, I guess I could find
if the problem is high level applications or low lever drivers. Seems
that the drivers all there, but don't know if them are working or not.

Thank you.

Kind Regards,

Jim

>  >
>  > Thank you.
>  >
>  > Jim
>  > <snip>
>
>
>  --
>  Bill
>
>  _______________________________________________
>  CentOS mailing list
>  CentOS at centos.org
>  http://lists.centos.org/mailman/listinfo/centos
>