ATI SB450 hda_codec : invalid dep_range_val 0fff
I have a real strange problem. I don't get my sound working.
My system is a Acer Aspice 5102 WLMi with:
lspci | grep -i audio returns:
00:14.2 Audio device: ATI Technologies Inc SB450 HDA Audio (rev 01)
(Acer description: Realtek High Definition Audio)
On boot I get many error messages of this:
hdc_codec: Invalid dep_range_val 0fff
and after that a few of this:
hdc_codec: num_steps = 0 for NID=0xd
And now the real strange thing:
If I purge alsa-base, alsa-utils, linux-sound-base and lsof everything
works fine after the first reboot. But only then: from the second boot
it just don't works anymore.
And even more strange:
aplay can play wav files everytimes. On the first time i start it after
booting there is following warning:
hda-intel: invalid position buffer, using LPIB instead
cat /proc/modules | cut -f1 -d " " | sort > modules.new;diff modules.new
modules.old don't gives any changes between the loaded modules.
I've tried the 2.6.19rc2 kernel already, tried to compile Alsa-Driver,
Alsa-Lib and Alsa-Utils for myself but nothing works.
I've read the doc for the ATI-IXP southbridge HD-audio and modem and
some other manuals and followed the instructions but nothing solved my
There was even the suggestion for a bios-update. I've done it. Of course
it was unneccessary...
Has anybody any ideas? I really don't know what to do!