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Old 09-04-2009, 09:41 PM   #1
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No sound for Acer Aspire M3202 desktop computer on 32-bit kubuntu 8.04

No sound for Acer Aspire M3202 desktop computer on 32-bit kubuntu 8.04
when playing a CD with Amarok or "speaker-test -c2 -twav".
However, sound is working for the same computer playing the same CD on 32-bit ubuntu 9.04, 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
HDA ATI HDMI at 0xfe9e8000 irq 19

# modprobe snd_hda_intel

I modified alsa-base from 8.04.
$ 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

I copied alsa-base.conf from ubuntu 9.04
options bt87x index=-2
options cx88_alsa index=-2
options saa7134-alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-usb-audio index=-2
options snd-usb-us122l index=-2
options snd-usb-usx2y index=-2
options snd-usb-caiaq index=-2
# Ubuntu #62691, enable MPU for snd-cmipci
options snd-cmipci mpu_port=0x330 fm_port=0x388
# Keep snd-pcsp from beeing loaded as first soundcard
options snd-pcsp index=-2

[ 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.

Please help to fix the audio problem.

Last edited by TsanChung; 09-07-2009 at 02:25 PM.
Old 09-09-2009, 01:01 AM   #2
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how about opening pulse audio server and unmuting the sound. or right clicking that little speaker an tell pulse to use pcm for you speakers. Theses are just guesses. pulse reads alsa but pulse is the default sound server on ubuntu.


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