Hi all,
I have working sound system, but I hear only two out of my 5.1 channels.
Any idea how to make them all working? Any links related to the topic
are also welcome. I googled around, but I couldn't find a solution. I
hear sound from the front left, right and subwoofer speakers during mp3
playing with Rhythmbox, and I am able to hear sound from the backward
speakers only by unmuting "Duplicate" in alsamixer, but that's not what
I want. I never managed to hear a sound from the center speaker.
I have a NVidia4 chipset based board with a Realtek ALC850 8-channel
codec on it.
I have debian lenny/sid 2.6.24-1-amd64 SMP with:
lspci -v:
00:0d.0 Multimedia audio controller: nVidia Corporation CK804 AC'97
Audio Controller (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 812a
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
I/O ports at b400 [size=256]
I/O ports at b000 [size=256]
Memory at d7dfd000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Kernel driver in use: Intel ICH
Kernel modules: snd-intel8x0
lsmod | grep snd:
snd_mpu401 13992 0
snd_mpu401_uart 13440 1 snd_mpu401
snd_seq_dummy 8580 0
snd_seq_oss 36736 0
snd_intel8x0 41000 3
snd_seq_midi 13376 0
snd_seq_midi_event 12544 2 snd_seq_oss,snd_seq_midi
snd_ac97_codec 118232 1 snd_intel8x0
snd_seq 58752 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
ac97_bus 6912 1 snd_ac97_codec
snd_pcm_oss 46624 0
snd_mixer_oss 21376 1 snd_pcm_oss
snd_rawmidi 30624 2 snd_mpu401_uart,snd_seq_midi
snd_pcm 89352 4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_device 12948 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi
snd_timer 28552 3 snd_seq,snd_pcm
snd 65896 16
snd_mpu401,snd_mpu401_uart,snd_seq_oss,snd_intel8x0,snd_ac97_codec,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_rawmidi,snd_pcm,snd_seq_device,snd_timer
soundcore 13216 1 snd
snd_page_alloc 15248 2 snd_intel8x0,snd_pcm
cat /proc/asound/cards
0 [CK804 ]: NFORCE - NVidia CK804
NVidia CK804 with ALC850 at irq 22
1 [UART ]: MPU-401 UART - MPU-401 UART
MPU-401 UART at 0x330, irq 5
Cheers,
Ivan
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