> At Sun, 9 Nov 2008 21:09:29 +0100,
> Andreas Mohr wrote:
>> On Sun, Nov 09, 2008 at 07:58:17PM +0100, Takashi Iwai wrote:
>>> At Sun, 9 Nov 2008 16:13:23 +0100,
>>> Andreas Mohr wrote:
>>>> OK, _THIS_ time I actually did get the correct model (last time I tried
>>>> modprobe with model=acer-aspire, but apparently it then used the
>>>> /etc/modprobe.d/ model=toshiba setting, since this time gamix showed
>>>> entirely different controls with i-Mic etc.) - all the more reason to
>>>> log the model name chosen/selected by the driver!!
>>> Build with the debug option (why turned off even if you *are*
>>> debugging?). Then the driver will show you details.
>> Hmm, right, that would have been an (very useful) option, but not for the
>> majority of users OTOH.
>
> I thought many ditros set this option...
>
>> Especially since this is a user-visible module parameter which should thus
>> be confirmed in mainstream user code, via logging.
>
> You can check via /sys/modules/snd_hda_intel/parameters/model whether
> you passed correctly or not, at least :)
>
>> Admittedly not many modules log their settings during startup,
>> but for snd_hda_intel with its two myriads of codec/machine variants
>> and a resulting quarter myriad of issues that would be very useful.
>
> Passing the model option is already a kind of debugging work, IMO.
> You shouldn't do it unless you need it, indeed.
>
>>>> --> I have to admit that usability sucks^Hcould be a lot better.
>>> One would call it rather debuggability than usability.
>>> These are completely different things.
>> See above ;)
>>
>>>> i-Mic on Ekiga with lotsa mixer fiddling didn't work either this time.
>>> OK, then something is missing. But you should test by arecord first
>>> than any complicated applications as a primary test.
>> Good point, will do.
>>
>> Oh, and is there a way to manually alter codec registers?
>
> Try hda-verb program. Build your kernel with CONFIG_SND_HDA_HWDEP=y
> and access via the hwdep device.
>
ftp://ftp.suse.com/pub/people/tiwai/misc/hda-verb-0.2.tar.bz2
>
>
> Takashi
