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alsa-driver package

Asus G73JW laptop Subwoofer not detected

Asked by Christian Parent

I got An Asus G73-JW laptop which I have installed Ubuntu 10.10 on it, everything works except that the internal Subwoofer is not detected. When I go in sound preference, I only have Stereo output and 4.0 no 2.1 or 4.1.

No sound comes out of it but it does work with the OS that came with it.

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Christian Parent (mobidoy) said : 		#1

Seem like the problem would come from the sound chip which does not have full support yet.

cat /proc/asound/card0/codec#* | grep Codec
Codec: Realtek ALC259

lspci
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5209 (rev 01)

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Sebastian Kosch (sebastiankosch) said : 		#2

Hi Christian,

I have the same problem. Seems like a patch for this has been submitted (see http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ac612407932be18697b5ae9da0a80f138b8bea8e).
I guess it'll be in 2.6.37, but I have by no means insight into the devel process of the alsa module.

... but if you find a way to configure ALSA manually to recognize the subwoofer don't hesitate to let me know :)

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Sebastian Kosch (sebastiankosch) said : 		#3

Come to think of it, after looking at the patch: the pin assignment can be done manually by adding it to /sys/class/sound/hwC0D0/user_pin_configs and then reconfiguring the driver. But I know of no ways to manually add PCI quirks to a compiled module, so unless you want to try and bake one yourself ...

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Christian Parent (mobidoy) said : 		#4

I cannot test it at the moment, I just sent the unit back to Asus cause it qould not power up at all... Will see in couple of weeks when I get it back :)

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