[SOLVED] intel hda configured but no sound.

[Mr_Shameless]

Hi,

My laptop is a Lenovo Y400-44A with Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller. Here is the output of lspci:

#lspci | grep -i audio

[grunthus]

Did you remember to do the following as root:

[Mr_Shameless]

Thank you

I ran rc-update add alsasound boot, and that gave me the "PCM" bar at start-up.

I'm already in the audio group.

However, I there is still no sound. I tested with both "cat /dev/urandom >> /dev/dsp" and audacious but couldnt hear anything.

I must try, I must try... This is the last step to complete my installation on this laptop, lol

[grunthus]

I'd go back to your kernel, build in ALSA support.

You can also run

[Mr_Shameless]

Sure i can.

O, a little about installing my the alsa-drivers. After trying the kernel modules (which failed), i disabled and enabled kernel options as guided in Gentoo Docs, then emerged alsa-driver. There was some call stack error, which strongly discouraged me, so i switched back to the kernel and wildly search for threads on this forums . And that is my current status.

OK, here are my outputs:

$cat /proc/asound/oss/sndstat

[Robstar]

I just want to ask a question that may or may not help. I have the same intel hda setting but my sound card is a cmi-9880 but whats yours? Maybe do some research on the card itself then just the module. If this doesn't help, sorry.
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[grunthus]

OK, so you tried in kernel, then tried alsa-driver and then back to in kernel.

Did the emerge alsa-driver fail? If not you'll need to get rid of alsa-driver:

[Mr_Shameless]

to Robstar: Where can i get that information? From the output of lspci, I only knew that i should try setting model=3jack (or 3stack, forgot) and position_fix=0 or 1 or 2 in some file (forgot )

to grunthus: yea, i failed emerging alsa-driver. But i will try cleaning files anyway.

Everytime i finished compiling the kernel, i copy arch/boot/i386/bzImage into /boot/kernel-2.6.20-gentoo-r8 (the one i'm using, according to /boot/grub/grub.conf) to overwrite the old image. Is that a good way? I guess it's a little risky though When i compiled new modules, it showed in the output of lsmod.

O, maybe i haven't made it clear, but i've always been using the laptop's built in speakers . They work under windows.

[PaulBredbury]

It's nice to have a backup kernel listed in grub, in case the new kernel doesn't boot up (e.g. if the module for the hard drive wasn't compiled in). I use in /boot/grub/menu.lst

[Robstar]

I don't know, I just knew it cause thats was on the box.
_________________
Please put [SOLVED] when you've found the solution. It makes everyone's lives easier.
From FreeBSD to Gentoo. Now lets have ago at Arch. (It's just not the same)
My Quote: Yes, I know I am a geek. Your just pointing out the obvious.

[Cyker]

The Realtek HD Audio (aka Intel HDAudio) driver in the current gentoo kernel is out of date.

One of the symptoms is that, in newer versions of the chip, the driver compiles, loads and correctly detects the chip, but no matter what you do no sound will play from it.

The best thing to do is disable all the ALSA drivers in the kernel and emerge the alsa-drivers stuff. You may also need to change some other kernel options to get it to work (IIRC you need to use the standard 8k stacks and not 4k... or was it the other way round??), but it can be a bit annoying trying to go from kernel-drivers to the alsa-drivers.

Alternatively, I believe Realtek have a Linux kernel patch on their website which you could probably use. I haven't tried it 'tho, so YMMV as they say.

[Mr_Shameless]

Thank you very much Cyker. I emerged a newer version of alsa-driver and have my music now

[Cyker]

Yay! Glad I helped