Comment 10 for bug 47706

Now that's quick! As far as I can see (I once had 5+ years of experience in
HP-UX, but that's 10 years ago, so please excuse me for unclarities) the
same behaviour as reported in

http://ubuntuforums.org/showthread.php?t=209882

that is:

lspci reports the card/soundchip allright
dmesg report nm256 as being blacklisted, loading stopped?

Still I can modprobe snd-nm256 (by hand or automatic during booth) but that
doesn't change a thing.

alsamixer complains about default: no such device (mixer in Xfce also only
lists a default device with no controls):

alsamixer: function snd_ctl_open failed for default: No such device

When firing up TOTEM, I get a warning about ' sound device busy' and no
sound (video playing all right).

When I lsmod | grep snd I get an awful lot of sound modules loaded including
the opl3, opl3sa2, cs4231 which don't seem to be needed (hw not listed in
lspci) and might be 'hijacking' some hardware portions.

snd_nm256 70688 0
snd_ac97_codec 100644 1 snd_nm256
ac97_bus 3200 1 snd_ac97_codec
snd_opl3sa2 21804 0
snd_opl3_lib 11520 1 snd_opl3sa2
snd_hwdep 10244 1 snd_opl3_lib
snd_cs4231_lib 26112 1 snd_opl3sa2
snd_pcm_oss 44672 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 33152 0
snd_pcm 80388 4
snd_nm256,snd_ac97_codec,snd_cs4231_lib,snd_pcm_oss
snd_page_alloc 11400 2 snd_cs4231_lib,snd_pcm
snd_mpu401_uart 9600 1 snd_opl3sa2
snd_seq_midi 9600 0
snd_rawmidi 25728 2 snd_mpu401_uart,snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
snd_seq 53232 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 4 snd_opl3_lib,snd_cs4231_lib,snd_pcm,snd_seq
snd_seq_device 9228 6
snd_opl3_lib,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 54660 15
snd_nm256,snd_ac97_codec,snd_opl3sa2,snd_opl3_lib,snd_hwdep,snd_cs4231_lib,snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_pcm,snd_mpu401_uart,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8800 2 sound,snd

Trying to modprobe ad1848 io=0x530 irq=5 dma=1 dma2=0 which is suggested in
one thread as workaround is not possible due error on param io (although
settings are exactly the same on my system as reported by BIOS):

FATAL: Error inserting ad1848
(/lib/modules/2.6.22-14-generic/kernel/sound/oss/ad1848.ko): No such device

ad1848 is not loaded at boot and dmesg reports problems with this device (I
included the nm256 part):

[ 48.572000] nm256: The device is blacklisted. Loading stopped
[ 49.560000] loop: module loaded
[ 56.532000] ndiswrapper version 1.45 loaded (smp=yes)
[ 56.700000] ndiswrapper: driver net8185 (Realtek,02/01/2007,
5.1097.0201.2007) loaded
[ 73.260000] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
[ 82.228000] Installing knfsd (copyright (C) 1996 <email address hidden>).
[ 505.652000] ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen
1993-1996
[ 527.072000] ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen
1993-1996
[ 527.076000] ad1848: No ISAPnP cards found, trying standard ones...
[ 580.532000] ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen
1993-1996
[ 3066.980000] ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen
1993-1996
[ 3066.980000] ad1848: No ISAPnP cards found, trying standard ones...

That's about it I think. I checked most of the forums on this issue, found
at least 5 other people reporting same, but no thread ended into a solution.
I checked whatever I could on the alsa project, but this proved of no help,
looks this is more about real sound cards, not simple onboard chips.

Thanks again for getting in touch!

Peter

On Nov 23, 2007 9:18 PM, Lee Revell <email address hidden> wrote:

> On Nov 23, 2007 3:00 PM, pwii <email address hidden> wrote:
> > The nm256 [NeoMagic NM200] driver included in the distro's Dapper does
> > not work in Dapper and all later distro's. The alsa driver snd-nm256
> > does not fix the problem. No sound out-of-the-box for a number of
> > laptops still in use. No workaround seems possible.
>
> What are the symtoms in Gutsy?
>
> Lee
>
>