Sound is not working properly

[tvilkov]

Hello,
My soundcard seems to be recognized by Fedora Core 6, but when I press the test sound button, the sound plays but with a very high-pitched sound in the background, making it almost impossible to listen to music. Now, when I open up an mp3 file in any media player, the result is the same as with the sound test. However, when I try to lower or raise the volume using the players' volume control, the sound totally dissapears, and I can't get it back again, only rebooting helps. I've looked at alsa mixer and everything, but nothing seems to be muted. Any ideas? My soundcard is intergrated SoundMAX ADI AD1986A. ALSA sees it as MPC61 High Definition Audio, nVidia Corporation, and it uses snd-hda-intel module. ALSA version 1.0.12. I think it might be the module or the driver, but I have got no idea how to change the driver. Please help!

[burntfuse]

Do you have a file in /etc called modprobe.conf or modules.conf?

If it's the right driver for the soundcard, then changing it isn't going to help (it's not like there are tons of drivers for the same hardware floating around online). This sounds more like something you should report on the Fedora bug tracker, since it should be setting up your soundcard to work out of the box.

[tvilkov]

The volume still mutes when I change the volume settings during the playback (although rhythmbox works fine!). I have managed to get rid of the high pitched sound by playing around with the alsamixer. I've muted my left speaker, and the horrible sound is gone! However, the actual speaker isn't muted. Strange, but it works for now. Thanks.

[tvilkov]

Well, i have found the solution to this problem. In /etc/modprobe.d, in file modprobe.conf.dist I have added the following line under the alsa modules -
options snd-hda-intel position_fix=1 model=3stack

Now it works fine without any problems.