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SubjectRe: Mickey mouse voices on snd-intel8x0
At Sat, 28 Jun 2008 19:42:15 +0200,
Zoltan Boszormenyi wrote:
>
> Hi,
>
> I have a Compaq Deskpro EN with PIII/866 recycled as a thin client.
> The problem was that sound on the thin client was played faster than it
> should.
> I have Fedora 9/x86-64 on the main machine, so the thin client is LTSP5
> that comes with F9.
> I tried everything (acpi=off, etc) but the strange voice didn't get better.
> I discovered this in the dmesg:

Did this problem exist on the earlier kernel?

> intel8x0_measure_ac97_clock: measured 50895 usecs
> intel8x0: measured clock 78 rejected

This value is way too small than normal. It means that either the
clocking or the calculation of the position in
intel8x0_measure_ac97_clock() is wrong. Could you check what is the
value if ichdev->position in that function?

> intel8x0: clocking to 48000
>
> I looked at the current kernel sources and found the solution for that.
> I had to provide this for the thin client in
> /opt/ltsp/i386/etc/modprobe.conf :
>
> options snd-intel8x0 ac97_clock=44100

Usually it's a bit slower than that. See
Documentation/sound/alsa/ALSA-Configuration.txt.


thanks,

Takashi


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