ubuntu-audio-dev team mailing list archive

[Daniel Chen <seven.steps@xxxxxxxxx>]

On Mon, Mar 29, 2010 at 1:10 PM, Brad Figg <brad.figg@xxxxxxxxxxxxx> wrote:
> To start things off I give you
>  https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/548661

Ah, Jane S's bug. Well, my initial hunch was that her SSID needs a
quirk entry for enable_msi=1, but upon rereading the bug report, I'm
not entirely certain that her port state hasn't been set to mute. I've
asked for clarification in comment #10. Also, I've asked her to test
the latest snapshot in comment #9.

There's a separate bug lurking in her driver (still present in
sound-2.6 master HEAD), namely patch_ad1981() fails to correctly call
snd_hda_override_amp_caps() for case AD1981_THINKPAD. This failure
results in distortion via the PCM node as I've explained in comment
#9.

> What are the next steps?

Well, I've asked for further information, but it would be a good idea
to use hda-emu and hda-analyzer if necessary.