[alsa-devel] Alsa 1.0.13 (and others) does not work on ALC880

[E.D.V.]

Well, on this laptop (D900t Eurocom) BIOS modification is very limited,
and it is not possible to modify or switch codecs, so as I think it is
enabled it is not possible to disable it ...

Takashi Iwai a écrit :
> At Sat, 19 May 2007 02:08:14 -0500 (CDT),
> Andrew Callan wrote:
>   
>> I have been without sound using Fedora Core ever since the 2.6.16 or
>> 2.6.17 kernel update (2.6.16 crashed during initialization, so I could not
>> tell whether sound worked or not).  It had worked well through the 2.6.15
>> Fedora kernels.  I finally sat down tonight to work the problem as hard as
>> I could and happened upon Eric and Tobin's timely exchange.
>>
>> First, simply adding probe_mask=1 to the snd-hda-intel options worked for
>> me as well; I did not end up having to specify a specific model.
>>
>> Second, I too was seeing a LONG hang when trying to do:
>> cat /proc/asound/card0/codec#0
>> but now with the probe_mask=1, I do not see this.
>>
>> If it helps, the alsa-info.sh output for my system is at
>> http://pastebin.ca/496293
>> If it makes any difference, I'm not sure which model I had specified on
>> the modprobe line at the time I captured this output.
>>
>> One thing I do notice is that after adding probe_mask=1, aplay -l does not
>> show the Si3054 Modem which shows up in the alsa-info output.
>>
>> Thanks for the help you gave in the thread with Eric.
>>
>> Andrew
>>     
>
> Interesting.  I've seen similar reports that probe_mask helps.
> Do you disable the modem codec on BIOS or is it enabled?
>
> If this happens even though it's enabled on BIOS, we'd need a
> blacklist of non-working devices, or a more robust probing routine...
>
>
> Takashi
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