[alsa-devel] Acer Aspire 7730G support

Denis Kup dener.kup at gmail.com
Wed Jun 24 19:52:48 CEST 2009

2009/6/24 Denis Kup <dener.kup at gmail.com>:
> 2009/6/24 Takashi Iwai <tiwai at suse.de>:
>> 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).
>> thanks,
>> Takashi
> You are talking about that
> http://mailman.alsa-project.org/pipermail/alsa-devel/2009-June/018815.html
> ?? Its right link to drivers http://www.alsa-project.org/snapshot/ ??
> And there is easier way to apply patches than manually adding strings
> to files?

I manage with installing. I use alsa-driver-snapshot.tar.gz
and this Amilo changes
.  But this patch has smaller functionality against i have. There is
advantages and disadvantages of both patches:

My patch:
+ 1) when black jack plugged, internal speakers and subwoofer mute
+ 2) there is 3 maps for jacks: (black/pink/blue) 2ch: front/ext mic/
(something i dont know, it should be line in), 4ch: front/ ext mic/
side 6ch: front/ CLFE / side; (its changes in channel mode option in
+ 3) internal mic works
+ 4) there are separate boost mic channels for internal and external mics
- 5) internal subwoofer controls with Center channel in mixer
? 6) i dont know how line in works (i will check it when reinstall to my patch)
? 7) i dont know how spdif works, because i have not any spdif speakers in house

Amilo patch:
- 1) when black jack pluged, only internal speaker mutes, subwoofer
continue to work (it has no meaning when i listen to music in
- 2) there is only 1 map for jacks: front/ext mic/ (something i dont
know, it should be line in)
- 3) there no side and center channels
- 3) internal mic dont work
- 4) there no line in in input source menu in mixer
+ 5) Subwoofer controls with LFE channel in mixer
? 7) i dont know how spdif works, because i have not any spdif speakers in house

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