Difference between revisions of "AD1981B"

Revision as of 15:21, 16 December 2005

This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

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.

On some models (T40, T43p, ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [1]

snd_ich will work happily for this audio chip.

@@ Line 25: / Line 25: @@
 ==== 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]
-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
-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 ===