[Debian-eeepc-devel] Asus EeePC 1215b sound does not work in Squeeze, works fine in Oneiric

[Miguel Telleria de Esteban]

Dear all,

I am struggling to make my brand new Asus EeePC 1215B produce any sound
in a Debian Squeeze installation.

Note:  I am with a 32bit installation.


RESEARCHING (on Debian Squeeze)
-------------------------------

The mixer icon shows the following devices:
-  HDA ATI SB (alsa mixer):  with Master, PCM...
-  HD Audio Generic (alsa mixer): with a tick switch for IEC958
-  ATI Rx6xxx HDMI (OSS mixer), since backporting alsa-base from Ubuntu
   Oneiric

Here is the lspci info for the audio devices

00:01.1 Audio device: ATI Technologies Inc Device 1314
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
(rev 40) 0

with PCI ID's:

00:01.1 0403: 1002:1314
00:14.2 0403: 1002:4383 (rev 40)


The output of lsmod | grep snd:

snd_hda_codec_realtek   207702  1 
snd_hda_codec_hdmi     21870  1 
snd_hda_intel          21529  2 
snd_hda_codec          57741  3
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep              12906  1 snd_hda_codec
snd_pcm_oss            35864  0 
snd_mixer_oss          17649  2 snd_pcm_oss
snd_pcm                52731  4
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_midi           12744  0 
snd_rawmidi            22407  1 snd_seq_midi
snd_seq_midi_event     13124  1 snd_seq_midi
snd_seq                39172  2 snd_seq_midi,snd_seq_midi_event
snd_timer              22171  2 snd_pcm,snd_seq
snd_seq_device         12995  3 snd_seq_midi,snd_rawmidi,snd_seq
snd                    38189  14
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              12878  2 snd
snd_page_alloc         12841  2 snd_hda_intel,snd_pcm

What I have tested so far:
--------------------------

*  Installing a 2.6.39 kernel from Debian backports

*  Compiling alsa modules from alsa-source package 1.0.23 (Deb squeeze)
   for the 2.6.32 kernel.

*  Backporting alsa-base and libasound2 (dropping multiarch) from
   Ubuntu Oneiric.  Tested in 2.6.32 and 2.6.39 kernels


What I have been unabled to do
------------------------------

*  Compiling alsa-source 1.0.23 for the 2.6.39 kernel (dependencies on
   the BKL in the alsa code).

*  Compiling alsa-source 1.0.24 (from Oneiric alsa-source backported
   package) for the 2.6.39 kernel (compilation error with a init.h
   kernel header).


Next steps that I am trying
---------------------------

*  Trying to adapt the compilation errors in alsa-source 1.0.24

*  Backporting alsa-utils and alsa-tools from Oneiric

*  Compile a 3.0.0 kernel (Oneiric) from the Oneiric or Sid.

Of course any more ideas are welcome.

Regards,

	Miguel Telleria