[alsa-devel] Intel HDA using VIA vt1708s
Hi, i'd like to report a bug in alsa, up to 1.0.20, in combination with the via vt1708s codec used for example in the asus X5DIJ laptop per default, patch_via.c enables EAPD during initialization. That's not the case especially for the 1708S, so theres no sound at all from internal laptop speakers and line-out. Enabling EAPD using hda_analyzer fixes this issue. I believe there should be some easy fix by initializing the codec with EAPD. I myself can't commit a patch, because my C -kills suck ;)
i'd be really glad if someone could take a look at patch_via.c
regards didi2002
At Thu, 2 Jul 2009 12:02:22 +0200, Chrissi k wrote:
Hi, i'd like to report a bug in alsa, up to 1.0.20, in combination with the via vt1708s codec used for example in the asus X5DIJ laptop per default, patch_via.c enables EAPD during initialization. That's not the case especially for the 1708S, so theres no sound at all from internal laptop speakers and line-out. Enabling EAPD using hda_analyzer fixes this issue. I believe there should be some easy fix by initializing the codec with EAPD. I myself can't commit a patch, because my C -kills suck ;)
i'd be really glad if someone could take a look at patch_via.c
Could you try the very latest alsa-driver snapshot first? ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
If this still doesn't work, please run alsa-info.sh with --no-upload option, and attach the generated file.
thanks,
Takashi
Could you try the very latest alsa-driver snapshot first?
ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
If this still doesn't work, please run alsa-info.sh with --no-upload option, and attach the generated file.
thanks,
Takashi
Ok i tried a snapshot from 07/07/09, still no sound ootb. Once I run "hda-verb /dev/snd/hwC0D0 0x1c SET_EAPD_BTLENABLE 2" sound is working perfectly. Hope I can help you fix this issue.
regards
Chris
At Tue, 7 Jul 2009 11:46:11 +0200, Chrissi k wrote:
Could you try the very latest alsa-driver snapshot first? ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/ alsa-driver-snapshot.tar.gz If this still doesn't work, please run alsa-info.sh with --no-upload option, and attach the generated file. thanks, TakashiOk i tried a snapshot from 07/07/09, still no sound ootb. Once I run "hda-verb /dev/snd/hwC0D0 0x1c SET_EAPD_BTLENABLE 2" sound is working perfectly. Hope I can help you fix this issue.
Thanks. Try the latest alsa-driver unstable snapshot (not the stable one): ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-unstable-snapshot.tar.gz
Fix patches are included there. If this works, I'll propagate them to the upstream.
Takashi
participants (2)
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Chrissi k -
Takashi Iwai