FC7 cannot play sound on ACER TravelMate 6291-100512

Nigel Henry cave.dnb at tiscali.fr
Tue Aug 14 16:44:23 UTC 2007


On Tuesday 14 August 2007 08:39, Yunus wrote:
> > Tim wrote:
> >> On Mon, 2007-08-13 at 14:09 +0200, Nigel Henry wrote:
> >>> another point to do with the sound test, is that when you press the
> >>> play sound button, you may or may not hear the sound even if the
> >>> soundcard is setup ok, because pretty much by default alsamixer has
> >>> sound muted to save your speakers and hearing
> >>
> >> I thought the volume control on the test panel allowed you to overcome
> >> that?  I have to admit that I haven't had it come up in a muted mode, to
> >> start with, to have to deal with that situation, and know whether that
> >> would work.
> >
> > The problem you can run into is that the volume control in the test
> > panel is only controlling one volume setting. You may need to adjust
> > more then one control before you can hear anything. This is
> > especially true with the Intel HDA chipset, because if the driver is
> > using the wrong model, you may be adjusting the wrong control.
> > (There are different "models" using the exact same chipset, but
> > connecting things to different pins.)
> >
> > Mikkel
>
> There no drop-down lists to try out other options in test sound step (FC7
> installation process).
>
> I have run alsamixer, kmixer and "fc7 gnome mixer" (sorry i forget the name
> for this default fc7 mixer).
> There is nothing wrong with alsamixer, kmixer and "fc7 gnome mixer"
> I also have run "soundcard detection" but still could not make the sound
> works.
>
> Here is the content of modeprobe.conf ( I don't know whether this file has
> to do with my sound problem):
> alias eth0 tg3
>
> alias scsi_hostadapter ata_piix
>
> alias scsi_hostadapter1 ahci
>
> alias snd-card-0 snd-hda-intel
>
> options snd-card-0 index=0
>
> options snd-hda-intel index=0
>
>
> yunus

Hi Yunus. Your modprobe.conf seems ok, but I believe you need to add a model 
option to one of the lines.

I spent a bit of time on Google today, and a link on a post to the alsa 
developers list moved me to download the latest snapshot of the alsa driver. 
The post also suggested looking in ALSA-configuration.txt, which I found in 
the unpacked tarball.

For the snd-hda-intel module, and the following chipsets refer to Acer 
Travelmate laptops. ALC260, and ALC883/888.

You'll probably find that alsamixer shows the chipset as one of these.

The suggestion for both of these is to set an option of "model=acer" (without 
the double quotes).

It's worth a go, so open a konsole (CLI), su to root, and in a text editor, 
Gedit, Kwrite, etc, go to /etc/modprobe.conf, and change the last line that 
you show above, so that it says.

options snd-hda-intel index=0 model=acer

Save, then close the text editor. Still as root, run depmod -a, then reboot 
while praying.

Whether this will work or not I don't know, but you only have to read through 
the ALSA-configuration.txt doc, to see how many variations there are (up to 
now), for chipsets that use snd-hda-intel. Links below.

For the latest snapshot of the Alsa driver.
ftp://ftp.suse.com/pub/projects/alsa/snapshot/driver/

After unpacking the tarball you will find ALSA-configuration.txt in:
alsa-kernel/Documentation

I don't how new you are to linux Yunus, but when I started I was clueless 
about doing anything with tarballs, so here's a bit of info on unpacking 
them.

Make a new directory (folder) in your /home/user directory, named Alsa-driver, 
for example. Download the tarball from the link above, saving it to your 
newly created directory. Next open a Konsole (CLI), and cd to the directory 
you saved the snapshot to. So it goes like this when you open the Konsole.

cd Alsa-driver
tar xjvf alsa-driver-hg20070814.tar.bz2

A new directory will be created in your Alsa-driver directory, named 
alsa-driver-hg20070814. You will find the ALSA-configuration.txt file within 
this directory using the path as above.

And just for info, if the file had ended in tar.gz, you would unpack it using 
tar xzvf. "z" signifies gz (gunzip) compression, and "j" bz2 (bunzip) 
compression. The "x" is extract, the "v" is verbose, so you get some text in 
the terminal during the unpacking, and the "f" is file.

Sorry if I'm wandering off on a tangent. Try the model=acer option, and see if 
things improve.

All the best.

Nigel.









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