snd_hda woes on AMD64-based Acer Aspire laptop (6.2-RELEASE)

Ariff Abdullah ariff at
Mon Mar 26 12:20:30 UTC 2007

On Mon, 26 Mar 2007 11:38:58 +0000 (UTC)
Andrew <aremo at> wrote:
> Hi all,
> This is a call for help... I'm experiencing audio problems on my
> laptop: when I try to play audio in KDE, the output is very noisy
> and harsh, sometimes briefly stuttering like a skipping CD.
> I've tried the 'cdcontrol -f /dev/acd0 play 1' test from the VGA
> console (as described in the FreeBSD handbook) but no sound is
> emitted in that case. No amount of knobbing and tuning seems to
> affect the results.
> My laptop is an Acer Aspire 5101AWLMi (ATI SB450 soundcard) with the
> very latest BIOS, on which I've installed FreeBSD 6.2-RELEASE for
> i386, plus the binary kernel objects from Ariff Abdullah's site
> (sndkld_releng6_i386_lowlatency.tar.gz).
> My dmesg (with uname, etc.) is available at:
> <>
>From your dmesg:

pcm0: <HDA Driver Revision: 20070317_0042>
                                     ^^^^ (latest should be 0043+)

Please grab the latest. Besides, you need DAE capable cd player
instead of plain analog. Yours doesn't seem to have proper analog CD

Ariff Abdullah

... Recording in stereo is obviously too advanced
    and confusing for us idiot ***** users :P ........
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