Strange behavior of alsa - hda-intel module

[svatoboj]

Dear all,

I use laptop Acer Aspire 5672 WLMi with hda-intel sound card, which is driving me almost crazy. I firured out to append "module=3stack-dig" to my /etc/modules.d/alsa to get card properly recognized. After having a bit noisy output I managed to get rid of it by adding "position_fix=2" but it is helpless as my DVD drive is stopping all sound activity. I just insert DVD or CD while listening to music and after few CD spins sound just disappears
Restarting alsa doesn't help, just computer restart.

Here are my modules loaded:

ragnarok ~ # lsmod | grep snd
snd_pcm_oss 48480 0
snd_mixer_oss 17536 2 snd_pcm_oss
snd_seq_oss 31744 0
snd_seq_midi_event 6784 1 snd_seq_oss
snd_seq 51600 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 8012 2 snd_seq_oss,snd_seq
snd_hda_intel 18900 1
snd_hda_codec 142320 1 snd_hda_intel
snd_pcm 78404 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer 23236 2 snd_seq,snd_pcm
snd 56812 10 snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq_midi_event,snd_seq,snd_seq_device,snd_hda_intel,snd_hda_codec,snd_pcm,snd_timer
snd_page_alloc 9992 2 snd_hda_intel,snd_pcm

and relevant audio device info:

ragnarok ~ # lspci -v | grep 1c
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode])
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode])
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02) (prog-if 00 [Normal decode])
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode])

I even use alsa with debug info turned on, no entries in logs beside:

ALSA /var/tmp/portage/alsa-driver-1.0.12_rc1-r1/work/alsa-driver-1.0.12rc1/pci/hda/hda_codec.c:1722: hda_codec: model '3stack-dig' is selected

I use 2.6.17 kernel.

Does anybody have any recommendation how to solve it?

Svata