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From: TsanChung on 5 Sep 2009 11:27
No sound for Acer Aspire M3202 desktop computer on 32-bit kubuntu 8.04
when playing a CD with Amarok.
However, sound is working for the same computer playing the same CD on
windows vista, so hw is not the issue.
Acer does not support linux so they do not answer my question.

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC883 Analog [ALC883 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0

$ lspci -v
....
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia
Subsystem: Acer Incorporated [ALI] Unknown device 014e
Flags: bus master, slow devsel, latency 64, IRQ 20
Memory at fe7f4000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>

....
01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller
Subsystem: ATI Technologies Inc RS780 Azalia controller
Flags: bus master, fast devsel, latency 0, IRQ 19
Memory at fe9e8000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>

# cat /proc/asound/cards
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfe7f4000 irq 20
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xfe9e8000 irq 19

# modprobe snd_hda_intel

....

$ sudo gvim /etc/modprobe.d/alsa-base
alias snd-card-1 snd-hda-intel
# l4dC.vfAxXUx5zd4:RS780 Azalia controller
alias snd-card-0 snd-hda-intel

#options snd-hda-intel model=acer
#options snd-hda-intel model=acer-aspire
options snd-hda-intel model=auto

options snd slots=snd-hda-intel,snd-hda-intel
#options snd-hda-intel enable_msi=1 probe_mask=1
options snd-hda-intel probe_mask=1

....
dmesg:
[ 234.407317] hda-intel: Invalid position buffer, using LPIB read
method instead.

I had used alsamixer to set the volume to a reasonable value.

Graphics hw is ATI Radeon HD 3200.
CPU is AMD Phenom 8550 Triple-Core Processor.

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