[alsa-devel] Acer Aspire 7730G support

Takashi Iwai tiwai at suse.de
Wed Jun 24 14:36:47 CEST 2009

At Wed, 24 Jun 2009 16:09:58 +0400,
Denis Kup wrote:
> Hey, when i first installed alsa to my laptop, there no sound from
> subwoofer, jacks were map very strange (2 surrounds for ex.). I try
> all models from the list, but all don't support my subwoofer. After a
> weak of hard work i made a patch that enables ACER_ASPIRE_7730G model
> for my laptop. It have ALC888S, 3 jacks, 6 channels, stereo internal
> frontal speakers and internal subwoofer.You can see acer.com for more
> info about hardware and jacks.
> It's the changes i made to /alsa-kernel/pci/hda/patch_realtek.c:

Can you try Emilio's patch recently posted (and pass
model=acer-aspire-6530g) with the very latest alsa-driver-snapshot?
This essentially includes your changes.  It's in:
  From: Emilio López <buhitoescolar at gmail.com>
  Subject: Re: [alsa-devel] Regarding Sound on Acer Aspire 6935G
  Date: Tue, 23 Jun 2009 22:32:45 -0300
  Message-ID: <d54969c50906231832w48ce7315uc5cf8b3f81534c76 at mail.gmail.com>

> After changing file i install driver, and it automatically detect its
> model (maybe there are old settings from previous install, so i dont
> 100% sure that it was detected). With this settings subwoofer works
> perfect, internal stereo and subwoofer mute when headphone are plugged
> all works, except 1 thing: subwoofer uses center channel instead LFE.
> To fix it i use such asound.conf file:
> Is there any chance to swap Center and LFE in patch_realtek.c?

Unlikely as ALC888* doesn't support the channel-swap feature (although
some other ALC codecs do).



More information about the Alsa-devel mailing list