Hi, I am getting difficulty setting up ALSA for my new HP portable computer. lspci displays the audio chip as : Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) and /proc/asound displays the codec as IDT 92HD71B7X I have uploaded the detailed hardware and configuration parameters to http://pagesperso-orange.fr/b.andre/visits.html/92HD71B7X I am using Fedora 10 x86_64 without pulseaudio and with the latest alsa-driver : alsa-driver-1.0.18a.16.g4012f.139.g6e583.tar.bz2 I have googled for a similar problem, but did not get to an actual fix, the following thread appears to deal with a most similar situation : http://forums.opensuse.org/pre-release-beta/399731-beta-5-no-sound.html After several tries, I have set modprobe.conf as alias snd-card-0 snd-hda-intel options sound slots=snd-hda-intel options snd-hda-intel model=hp-m4 single_cmd=1 enable_msi=1 Results : aplay freezes, with some sound output which is the continual repeat of the initial expected sound (some fraction of a second repeated). However if I boot with pci=noacpi the output is correct (I do not understand the relation of power management to sound, there must be one as I see : HDA Intel 0000:00:1b.0: power state changed by ACPI to D0 when I unload/reload alsa) WITHOUT the pci=noacpi option : - mplayer outputs the sound correctly (does mplayer bypass alsa ?) - xine outputs a chopped sound (some 100ms OK, some 100ms silent, some 100ms OK, etc, with a period which could be 200..500ms) - most players (eg Real player) just freeze. I would say that when some sound buffer gets empty, the driver does not get the information, so it does not fill the buffer again. I have done some digging into the code. I see that this 92HD71B7X chip is supported for HP dv5 and dv7 computers (subsystem ID 103c30f2 and 103C30f4), but mine is a HP dv4 showing a subsystem ID 103c30f7, so it must be somewhat different and not supported yet. Can anybody suggest some fix ? If needed I can apply patches to the code and do some testing so that my configuration gets supported in subsequent versions. Regards Jean-Pierre _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
