7 Apr
2004
7 Apr
'04
1:53 p.m.
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:
Hey,
I'm using an "ice1712" soundcard (with whom I satisfied) on a Shuttle box,
whose
"intel8x0" audio chipset powers I'm
trying to "revive", in order to
attempt
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
supposed to be due to this "ice1712" driver,
quoting the "Advanced Linux
Sound
Architecture - Driver Configuration Guide"
MMAP on ICE1712 driver
----------------------
ICE1712 supports only the unconventional format, interleaved 10-channels
24bit
(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.
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
all volume controls by appending "[Off]".
Why?
Two problems to be solved then...
Cheers,
Mr°Freeze