[alsa-devel] need support for insatllation of pci sound card.

[Raymond Yau]

2009/11/13 Kunal Narkhede <kunal.narkhede at gmail.com>

> hi,
>
> Please help me install my sound card drivers.As told in forum i updated my
> alsa drivers with the provided one.My card seems to getting recognize but
> no
> sound is heard here is
> *output of "aplay -l" command
> *
> **** List of PLAYBACK Hardware Devices ****
> card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 0: AudioPCI [Ensoniq AudioPCI], device 1: ES1371/2 [ES1371 DAC1]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
>
> I have also *attached the logfile obtained from alsainfo.sh* provided on
> the
> thread of alsa upgrade script.
>
> Please help me install my sound card have been searching for drivers since
> 7
> months and its getting frustating now.
>
> Mine is PCI sound card on-board sound card has been disabled from bios..
>
> I am usung* ubuntu 9.04 with 2.6.28-16-generic kerne*l installed through
> updates using update manager.
>
> --
> With Regards
> Kunal
> 9860384968
>
>
This is known bug of EV1938 , it seem that EV1938 no longer  read ac97 codec
registers correctly  at the time of  alsa-driver  1.0.8

https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1389
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1023

Symptoms are

1) Unable to identify Sigmatec AC97 codec  9705

0-0/0: 0x76058384 FÕS

0:7c = 0000
0:7e = 8384


2) The value of reset register are wrong

0:00 = 0000

Flags: 0
Capabilities     : -dedicated MIC PCM IN channel- -bass & treble-
DAC resolution   : 16-bit
ADC resolution   : 20-bit
3D enhancement   : Reserved 29


3) The value of other registers and mixer controls are wrong


0:02 = 0140
0:04 = 8e0e
0:06 = 8000
0:08 = 800e
0:0a = 0000
0:0c = 1f0f
0:0e = 801f
0:10 = 801f
0:12 = 9f1f
0:14 = 8808
0:16 = 9f1f
0:18 = 8808
0:1a = 8808
0:1c = 8808
0:1e = 0808
0:20 = 0000
0:22 = 0000
0:24 = 0000
0:26 = 0000