Friday 16 April 2010

openSuSE 11.2 sound on HP dv7t-1000 - ALSA, Pulseaudio, and JACK

It took a lot to get this setup. I made the mistake of installing PulseAudio, and had to uninstall it before my sound would work in the slightest. But even then, I had jerky sound. The solution was to make some edits to my /etc/modprobe.d/50-sound.conf so that it appears as follows:
options snd-hda-intel model=hp-m4 enable_msi=1
# u1Nb.Jqboh86TqAC:82801I (ICH9 Family) HD Audio Controller
alias snd-card-0 snd-hda-intel
After making these changes, and restarting my computer, the sound worked again. I could start JACK with Rosegarden with no troubles (after doing the standard realtime permissions fix).

Some links:
http://www.alsa-project.org/main/index.php/SoundcardTesting
http://en.opensuse.org/SDB:AudioTroubleshooting
http://en.opensuse.org/HCL/Laptops/HP#dv_7
http://en.opensuse.org/Alsa-update
http://en.opensuse.org/SDB:Intel-HDA_sound_problems
http://hg.alsa-project.org/alsa-kernel/raw-file/5082de4abb26/Documentation/ALSA-Configuration.txt
http://www.alsa-project.org/main/index.php/Matrix:Module-hda-intel
http://akoskm.blogspot.com/2009/01/laptop-extra-keys-howto.html
http://en.opensuse.org/Pulseaudio
http://pulseaudio.org/wiki/BrokenSoundDrivers

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