At Wed, 11 Sep 2002 09:32:26 +0200 (CEST),
Jaroslav wrote:
> 
> On Mon, 9 Sep 2002, Fernando Pablo Lopez-Lezcano wrote:
> 
> > > > > The updated code in CVS should be more verbose. Could you try it and send 
> > > > > me related lines from /var/log/messages? Thanks.
> > > > 
> > > > Here's the error message from the cvs version, it appears to add a little 
> > > > bit more information to what I sent before:
> > > > 
> > > > Sep  9 20:25:57 pc1 kernel: PCI: Setting latency timer of device 00:1f.5 
> > > > to 64
> > > > Sep  9 20:25:58 pc1 kernel: ALSA 
> > > > ../../alsa-kernel/pci/ac97/ac97_codec.c:1519: AC'97 1:0 does not respond - 
> > > > RESET [REC_GAIN = 0x0]
> > > > Sep  9 20:25:58 pc1 kernel: Intel ICH soundcard not found or device busy
> > > 
> > > I've forgot to apply a next patch to intel8x0.c yesterday. Could you test 
> > > it again? It should be initialized properly, but you'll see debug messages.
> > > Also, output from /proc/asound/card0/intel8x0 might help me a lot.
> > 
> > That did it! It loads now, it seems to take longer than before.
> > Here's the extra debugging output:
> > 
> > Sep  9 23:28:58 pc1 kernel: PCI: Setting latency timer of device 00:1f.5 
> > to 64
> > Sep  9 23:29:00 pc1 kernel: ALSA 
> > ../../alsa-kernel/pci/ac97/ac97_codec.c:1519: AC'97 1:0 does not respond - 
> > RESET [REC_GAIN = 0x0]
> > Sep  9 23:29:00 pc1 kernel: ALSA ../alsa-kernel/pci/intel8x0.c:1584: 
> > Unable to initialize codec #0 [device = 3146496, GLOB_STA = 0xc2907cf4]
> > Sep  9 23:29:00 pc1 kernel: intel8x0: clocking to 48000
> > Sep  9 23:29:00 pc1 alsasound: Starting sound driver snd-intel8x0 
> > succeeded
> > 
> > And this cat /proc/asound/card0/intel8x0
> > Intel8x0
> > 
> > Global control        : 0x00000002
> > Global status         : 0x00300300
> > AC'97 codecs ready    : primary secondary
> 
> It seems that the second codec is MC'97 (modem codec) without audio 
> capabilities. I've added the detection code for MC'97 to CVS. Could you 
> try it? Thanks.

IIRC, a notebook has problems when ac97 modem register is accessed.  i
forgot which one, and how, but one of oss drivers had this problem.
needs to check lkml now...


Takashi


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