Re: Lost Sound from 2.6.24 to 2.6.25 -- CS4236 ISA

From: Pete Clements
Date: Tue May 06 2008 - 11:39:04 EST


Quoting Takashi Iwai
> At Mon, 5 May 2008 10:06:51 -0400 (EDT),
> Pete Clements wrote:
> >
> > Looks like sound card stops functioning between
> > 2.6.24 and 2.6.25.
>
> Could you elaborate what do you mean exactly "stop"? Fail to load or
> initialize the driver, or silent output, DMA error...?
>
> > Sorry but don't know at what
> > point. Card is an isa CS4236. Glad to provide
> > any other info/testing.
>
> Any relevant kernel messages are welcome. Also, if you passed any
> (module) options for the sound driver, show it, too.
>
> The biggest change in ISA sound driver codes between 2.6.24 and 2.6.25
> is that we dropped the PnP resource re-configuration via module
> options of sound drivers. They have to be adjusted via sysfs now
> (if really needed).
>
> Otherwise, if it really worked on 2.6.24, we have a good chance to
> identify the affecting changeset via bisect. There are only a few
> changes for sound/isa.
>
>
> thanks,
>
> Takashi
> --
All I get is a cyclic noise burst (about 500ms frequency).
No options to module load, prior to 25 manually loaded modules
with 'modprobe snd-cs4236', with 25+ modules auto load at boot.

By removing "CONFIG_PNPBIOS" get total silence. So would assume the
PNP change the source.

Currently running 26-rc1-git4.

-
Pete Clements
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