[mythtv-users] Internal mixer control

[Sam Wong]

I wasn't able to get internal mixer control working, wanna see if anyone
has encountered and solved this..

I am using 0.19 release.

The best I can get:
2006-09-03 14:22:04.991 Opening audio device 'playback'.
ALSA lib control.c:817:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
2006-09-03 14:22:06.847 Mixer attach error -2: No such file or directory
Check Mixer Name in Setup: /dev/mixer
2006-09-03 14:22:06.850 NVP: Disabling Audio, reason is: Mixer attach
error -2: No such file or directory
Check Mixer Name in Setup: /dev/mixer
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x191

lspci -v
0000:00:10.1 0403: nVidia Corporation MCP51 High Definition Audio (rev a2)
Subsystem: ASUSTeK Computer Inc.: Unknown device 81cb
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 217
Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Capabilities: [6c] #08 [a802]

cat /proc/asound/cards
0 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfe024000 irq 217
1 [UART ]: MPU-401 UART - MPU-401 UART
MPU-401 UART at 0x330, irq 10
cat /proc/asound/modules
0 snd_hda_intel
1 snd_mpu401
cat /proc/asound/devices
17: [0- 1]: digital audio playback
16: [0- 0]: digital audio playback
24: [0- 0]: digital audio capture
0: [0- 0]: ctl
33: : timer
40: [1- 0]: raw midi
32: [1- 0]: ctl

~~~~~~~~~~~~
Or actually may be my problem is how to make a mixer device? I just
discovered that
alsamixer -D /dev/mixer
ALSA lib control.c:817:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
alsamixer: function snd_ctl_open failed for /dev/mixer: No such file or
directory

Doesn't work...but
ls -l /dev/mixer
crwxrwxrwx 1 root audio 14, 0 2006-08-17 23:13 /dev/mixer

it's there