Re: [Alsa-user] Re: 82801BA/BAM AC'97 Audio (rev 04) works in OSS, not ALSA - mixer?

[Tobias H. <tob...@me...>]

folks, sergey,

we are getting close to it - problem is partly solved, see below:

On 04.02.2004 17:07, Sergey Vlasov wrote:

> On Wed, 04 Feb 2004 16:11:57 +0100 Tobias Hofmann wrote:
> 
> 
>>I have a Fujitsu-Siemens machine (one of 16 @$orkplace) which refuses to 
>>make sound with alsa 1.0.2c and lib/utils from today, on both, Suse 9.0 
>>(2.4.21-166-default) and fedora1. It does, though, deliver sound nicely 
>>using OSS drivers (ac97_codec and i810_audio), so i assume speakers and 
>>cabling are ok... :)

[...]

> Probably your machine is listed in the quirk table in snd-intel8x0. 
> Please show the part of the "lspci -v" output for the audio controller
> (the subsystem ID is important).

00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio 
(rev 04)
         Subsystem: Siemens Nixdorf AG: Unknown device 0056
         Flags: bus master, medium devsel, latency 0, IRQ 5
         I/O ports at 2000 [size=256]
         I/O ports at 1c00 [size=64]

As Sergey pointed out, this device is listed in snd-intel8x0:

	{
		.vendor = 0x110a,
		.device = 0x0056,
		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
		.type = AC97_TUNE_HP_ONLY
	},

> Also you can try the attached patch to alsa-drivers.  Apply with
> "patch -p1", recompile and load snd-intel8x0 with ac97_quirk=0 (this
> will override the quirk table in the driver).  

Did as suggested.

Probably it will work
> with the normal Master mixer control.

Does. :) yesssssss... :) Thanks a bunch, Sergey - very much appreciated.! :)

Furthermore, Sergey suggests offlist:
> Apparently the blacklist entry is wrong.  Maybe there are _some_
> boards with the same subsystem ID where AC97_TUNE_HP_ONLY is needed
> (this would be bad, because then the driver cannot recognize them
> automatically, as it tries to do now).

This I cannot comment on, since I don,t understand how the 
"blacklist"-mechanism works... anyone with five minutes at his hands 
care to comment? Please? :)

Finally, I,ll head off now to bugtrack.alsa-project.org and get me an 
account... :)

thanks for the help, greets, tobi... :)



-- 
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Dipl.-Ing. Tobias Hofmann   Bauhaus-Universitaet Weimar  D99423 Weimar
Professur fuer Graphische Datenverarbeitung      Projekt medienquadrat
SnailMail:  Bauhaus-Universitaet  Weimar,  Fak. Medien,  D99421 Weimar
Location:     D99423 Weimar     Karl-Haussknechtstr. 7      Zimmer 111
                 Fon: ++49-(0)3643-58-3780  Fax : -3701
           e-mail: mailto:tob...@me...
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