Sound onboard ALC887 di motherboard Gigabyte H55M-S2 tidak berfungsi pada Ubuntu 10.10

PC baru coba install Ubuntu 10.10. Semua lancar banget. Kecuali satu ada yang aneh. Tak pernah ada suara aja :-D

Karena Ubuntu menggunakan Alsa sound system, simple saja untuk tahu sound chipnya:

$arecord -L

Dan berikut hasilnya:

default

pulse

    Playback/recording through the PulseAudio sound server

front:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    Front speakers

surround40:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    4.0 Surround output to Front and Rear speakers

surround41:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    4.1 Surround output to Front, Rear and Subwoofer speakers

surround50:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    5.0 Surround output to Front, Center and Rear speakers

surround51:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    5.1 Surround output to Front, Center, Rear and Subwoofer speakers

surround71:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers

dmix:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    Direct sample mixing device

dmix:CARD=Intel,DEV=2

    HDA Intel, ALC887 Analog

    Direct sample mixing device

dsnoop:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    Direct sample snooping device

dsnoop:CARD=Intel,DEV=2

    HDA Intel, ALC887 Analog

    Direct sample snooping device

hw:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    Direct hardware device without any conversions

hw:CARD=Intel,DEV=2

    HDA Intel, ALC887 Analog

    Direct hardware device without any conversions

plughw:CARD=Intel,DEV=0

    HDA Intel, ALC887 Analog

    Hardware device with all software conversions

plughw:CARD=Intel,DEV=2

    HDA Intel, ALC887 Analog

    Hardware device with all software conversions

Solusinya nggak perlu nunggu Ubuntu versi terbaru lagi (yang akan menyertakan Alsa terbaru yang udah langsung mengenali sound chip ini). Langsung aja tambahkan 2 bari berikut ke dalam file /etc/modprobe.d/alsa-base.conf:

alias snd-card-0 snd-hda-intel

options snd-hda-intel model=auto

Restart dan akhirnya bisa denger suara.