I don't know if you have an automatic update for your distro or not but that may be the reason it only works for a while. I turned mine off after I got everything working the way I wanted. Sometimes I think the distros stay behind on some of the updates.

yes, thats true. I stopped automatic update in my other machine which runs openSuSE 10.2 with the same config (audio especially - Intel HD Audio) and it works fine. Never reverts back to where it was.

It's true that certain updates breaks the changes made by us manually.

No, that's not it. My automatic updates are already disabled.

same problem different linux
 

Hi,
i have the same problem (low sound) on my hp presario c301 laptop.
i have FC6 stock kernel(2.6.18-1.2798) and a stack=16k of the same configuration kernel which both give the same problem.

As some of you have pointed
1) do i have to get a 2.6.20 kernel
or
2) recompile alsa modules

Has somebody actually made their card work very well?
if it did for you, can you pls tell me the procedure you followed?
i can live with periodic als installation if this works...!

I had this problem for long time and I did two things after having it fixed with openSuSE 10.2.

It was well working in openSuSE 10.3 (alpha) and fantastic in Ubuntu. So, until openSuSE 10.3 final is released, I am sticking with Ubuntu because I am sick and tired of fixing it again and again (it reverts back to where it was on reboot every time).

Otherwise, except the solutions mentioned above in this forum, I don't have any buddy.