linuxaudio.org

I've seen that the ice1724 driver (which is based on ice1712) is unable

to mmap on /dev/dsp.
The trick is to switch the order of your cards so that /dev/dsp is

attached to your ac97 on-board first, instead of your ice1712. If you

make 'alias snd-card-0 snd-intel8x0', you'll probably find the game will

work happily.
later,

Steve
Mr.Freeze wrote:

quoted text
> Hey,

> I'm using an "ice1712" soundcard (with whom I satisfied) on a Shuttle box,

whose

quoted text
> "intel8x0" audio chipset powers I'm trying to "revive", in order to

attempt

quoted text
> again to make the game Enemy Territory work at last, as it returned the

> following error, when using the better soundcard of the two:

>

> ------- sound initialization -------

> /dev/dsp: Input/output error

> Could not mmap /dev/dsp

> ------------------------------------

>

> One reported on the ET forum (on the thread "ET / Linux: no sound!") that

it is

quoted text
> supposed to be due to this "ice1712" driver, quoting the "Advanced Linux

Sound

quoted text
> Architecture - Driver Configuration Guide"

>

> MMAP on ICE1712 driver

> ----------------------

> ICE1712 supports only the unconventional format, interleaved 10-channels

24bit

quoted text
> (packed in 32bit) format. Therefore you cannot mmap the buffer as the

> conventional (mono or 2-channels, 8 or 16bit) format on OSS.

>

> When it comes to set multiple cards, the first audio card only on

> /etc/modules.conf, whichever of the two it is, is installed after the

boot-up.

quoted text
> Loading the other card afterwards by hand with modprobe does work: it is

> detected on /proc/asound/cards.

> Why?

>

> Here's a snippet of my /etc/modules.conf:

>

> # ALSA portion

> alias char-major-116 snd

> alias char-major-14 soundcore

>

> alias snd-card-0 snd-ice1712

> alias snd-card-1 snd-intel8x0

>

> # Terratec EWX 24/96

> alias sound-slot-0 snd-ice1712

> alias sound-service-0-0 snd-mixer-oss

> alias sound-service-0-1 snd-seq-oss

> alias sound-service-0-3 snd-pcm-oss

> alias sound-service-0-8 snd-seq-oss

> alias sound-service-0-12 snd-pcm-oss

> options snd-card-ice1712 snd_enable

> alias /dev/dsp1 snd-pcm-oss

>

> # Shuttle Intel Audio Chipset

> alias sound-slot-1 snd-intel8x0

> alias sound-service-1-0 snd-mixer-oss

> alias sound-service-1-1 snd-seq-oss

> alias sound-service-1-3 snd-pcm-oss

> alias sound-service-1-8 snd-seq-oss

> alias sound-service-1-12 snd-pcm-oss

> options snd-intel8x0 snd_enable

> alias /dev/dsp snd-pcm-oss # ET can only route /dev/dsp

>

> But... even if XMMS, for example, does play sounds when routed to the OSS

> emulated "intel8x0" at /dev/dsp, no sound gets out of it and alsamixer

labels

quoted text
> all volume controls by appending "[Off]".

> Why?

>

> Two problems to be solved then...

>

> Cheers,

> Mr°Freeze

>