Re: [Alsa-user] nm256: Dell Inspiron 3500 laptop

[Takashi I. <ti...@su...>]

At Fri, 8 Jun 2007 20:39:09 -0400,
J. McClelland and C. Chow wrote:
> 
> Thanks for your reply.
> 
> I have now tried snd-nm256, snd-opl3sa2, snd-cs4232, snd-cs4231, snd-sb16,
> and snd-ad1848 with this hardware (Dell Inspiron 3500, Neomagic NM2200
> MagicMedia 256AV).  So far no joy!
> 
> snd-nm256 seems to come closest to working.  If I set force_ac97=1, the
> module loads with the encouraging dmesg output:
> 
> nm256: Mapping port 1 from 0x2709a0 - 0x27ec00
> 
> And aplay /home/family/wavs/curly.wav gives:
> 
> Playing WAVE '/home/family/wavs/curly.wav' : Signed 16 bit Little Endian,
> Rate 44100 Hz, Stereo
> aplay: pcm_write:1265: write error: Input/output error
> 
> ...close, but still no sound.

force_ac97 is very bad option.  This should be a very last thing after
confirming that you have really AC97 codec chip on your machine.

> -------
> 
> snd-opl3sa2 results in: 
> 
> FATAL: Error inserting snd_opl3sa2
> (/lib/modules/2.6.18-4-686/kernel/sound/isa/snd-opl3sa2.ko): No such device
> 
> unless I add some options in /etc/modprobe.d/sound:
> 
> alias snd-card-0 snd-opl3sa2
> alias sound-slot-0 snd-opl3sa2
> options snd-opl3sa2 fm_port=-1 midi_port=-1 port=0x370 wss_port=0x530
> isapnp=0 dma1=1 dma2=0 irq=5
> 
> (These options were chosen by running alsaconf -> legacy ISAPnP -> probe
> opl3sa2)

You have to give port option.

> I have also tried
> 
> options snd-opl3sa2 fm_port=-1 midi_port=-1 port=0x370 wss_port=0x530
> isapnp=0 sb_port=0x220 dma1=0 dma2=1 irq=5

0x370 isn't the only value that opl3sa chip accepts.

> Which is closer to what I have set in the BIOS.
> 
> With these options, the module loads, but I get the following dmesg output:
> 
> pnp: Device 00:0c activated.
> ALSA
> /usr/src/alsa/alsa-driver-1.0.14rc4/isa/../alsa-kernel/isa/opl3sa2.c:637:
> PnP manual resources are invalid, using auto config
> ALSA
> /usr/src/alsa/alsa-driver-1.0.14rc4/isa/../alsa-kernel/isa/opl3sa2.c:233:
> opl3sa2: can't grab port 0x0
> pnp: Device 00:0c disabled.
> snd-opl3sa2-pnpbios: probe of 00:0c failed with error -16
> 
> An attempt at aplay gives 
> 
> ALSA lib confmisc.c:769:(parse_card) cannot find card ''
> ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_card_driver
> returned error: No such device
> ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
> ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_concat
> returned error: No such device
> ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
> ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_refer returned
> error: No such device
> ALSA lib conf.c:3982:(snd_config_expand) Evaluate error: No such device
> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:545: audio open error: No such device
> 
> --------------
> 
> snd-cs4232, snd-cs4231, snd-sb16, and snd-ad1848 all behave similary.  I get
> som options by going through the legacy ISAPnP section of alsaconf, loading
> seems to proceed without incident, but an attempt at aplay results in the
> same set of "no such device" errors.
> 
> Incidentally, in the BIOS I've selected custom audio settings with the
> following values:
> 
> SB I/O Address: 220
> WSS I/O Address: 530
> Adlib I/O Address: 388
> Interrupt:  IRQ5
> 1st DMA Channel: DMA 0
> 2nd DMA Channel: DMA 1
> 
> Does this list of parameters give any clue as to which chip I really have?
> 
> Another clue:  When I run alsaconf and it searches for sound cards, it finds
> both the nm256 and the opl3sa2 - strange?
> 
> Much obliged for further troubleshooting help!

Check the corresponding directory of /sys/bus/pnp/*.

Also, you should try ALSA 1.0.14 release instead of the drivers in
your old kernel.


Takashi