[alsa-devel] no soundcards detected on MCP51 rev a

[Takashi Iwai]

At Wed, 14 Apr 2010 15:16:31 -0400,
Gregory T Flynn wrote:
> 
> Well here is the problem with downgrading kernels, i just tried
> booting the Arch LTS kernel package which is 2.6.27 and i have an EXT4
> root partition, therefor that kernel can't boot.  Is there any good
> way to get an ALSA build prior to 1.0.20 to compile against kernel
> 2.6.33?

That's not trivial, I'm afraid.

An easier way would be to copy only sound/pci/hda/* from the older
alsa-driver.  If any, fixing the incompatible code only in HD-audio
driver would be easier.  Instead of alsa-driver tarball, you can try
hda codes in 2.6.27..33 kernels.

It'd be helpful, at least, if you can figure out which version
starts breaking.


Takashi

> On Wed, Apr 14, 2010 at 2:22 PM, Takashi Iwai <tiwai at suse.de> wrote:
> > At Wed, 14 Apr 2010 14:19:20 -0400,
> > Gregory T Flynn wrote:
> >>
> >> after 9.04 it doesn't work, and versions of ALSA prior to 1.0.20 won't
> >> compile against the newer kernels since the source tree organization
> >> has changed
> >
> > The other-way round: you can run the old kernel that old Ubuntu was
> > based on, and compile the later alsa-driver on it.
> >
> >
> > Takashi
> >
> >> On Wed, Apr 14, 2010 at 2:16 PM, Takashi Iwai <tiwai at suse.de> wrote:
> >> > At Wed, 14 Apr 2010 13:44:13 -0400,
> >> > Gregory T Flynn wrote:
> >> >>
> >> >> the options in the laptop's BIOS are rather sparse and nothing about
> >> >> Sound card enable/disable
> >> >>
> >> >> The soundcard works in Windows 7 and Ubuntu 8.04/8.10/9.04 Live USB images
> >> >
> >> > Then try the version of alsa-driver of Ubuntu.  Check whether it
> >> > really works.  If works, then please bisect.
> >> >
> >> >
> >> > thanks,
> >> >
> >> > Takashi
> >> >
> >>
> >>
> >>
> >> --
> >> - Greg Flynn
> >>
> >
> 
> 
> 
> -- 
> - Greg Flynn
>