Difference between revisions of "AD1981B"
(→Linux ALSA driver) |
(→Note) |
||
| Line 25: | Line 25: | ||
==== Note ==== | ==== Note ==== | ||
On some models ({{T40}}, {{T43p}}, ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004] | On some models ({{T40}}, {{T43p}}, ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004] | ||
| + | |||
| + | |||
| + | If You have problems with mixing, You may need to try this: | ||
| + | |||
| + | $ cat ~/.asoundrc | ||
| + | pcm.ossmix { | ||
| + | type dmix | ||
| + | ipc_key 1024 | ||
| + | slave { | ||
| + | pcm "hw:0,0" | ||
| + | period_time 0 | ||
| + | period_size 1024 | ||
| + | buffer_size 8192 # buffer size < 6653, but pow(x, 2) | ||
| + | rate 48000 # we want to play CDs only | ||
| + | |||
| + | } | ||
| + | |||
| + | bindings { | ||
| + | 0 0 | ||
| + | 1 1 | ||
| + | } | ||
| + | } | ||
| + | |||
| + | # Everything shall be dmixed, so redefine "default": | ||
| + | pcm.!default { | ||
| + | type plug | ||
| + | slave.pcm "ossmix" | ||
| + | } | ||
| + | |||
| + | # OSS via aoss should d(mix)stroyed: | ||
| + | pcm.dsp0 { | ||
| + | type plug | ||
| + | slave.pcm "ossmix" | ||
| + | } | ||
| + | |||
| + | ctl.mixer0 { | ||
| + | type hw | ||
| + | card 0 | ||
| + | } | ||
=== FreeBSD OSS driver === | === FreeBSD OSS driver === | ||
Revision as of 14:19, 16 December 2005
AD1981BThis is a Analog Devices AC'97 Audio controller Note: The documentation of the R40 incorrectly(?) states it has a AD1891A Features
|
Linux OSS driver
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.
Linux ALSA driver
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module.
On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.
Note
On some models (T40, T43p, ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [1]
If You have problems with mixing, You may need to try this:
$ cat ~/.asoundrc pcm.ossmix {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
period_time 0
period_size 1024
buffer_size 8192 # buffer size < 6653, but pow(x, 2)
rate 48000 # we want to play CDs only
}
bindings {
0 0
1 1
}
}
- Everything shall be dmixed, so redefine "default":
pcm.!default {
type plug
slave.pcm "ossmix"
}
# OSS via aoss should d(mix)stroyed:
pcm.dsp0 {
type plug
slave.pcm "ossmix"
}
ctl.mixer0 {
type hw
card 0
}
FreeBSD OSS driver
snd_ich will work happily for this audio chip.
