Linuxshark,

Even though I can't understand any German, I know what you are going through, I went through the exact same issues with v3.3, and like you, was stuck in exactly the same place. Apt-get was broke all over the place, ALSA was broke and didn't work, and even OSS was damaged to the point that I had no sound at all...

Not sure if this will help, or that this is the way you can resolve this, but, it is how I got ALSA resolved on my Knoppix v3.3, and probably what I am going to do when I "exchange" v3.3 with v3.4, shortly...

I had to completely cfdisk my installation, start with a completely gutted system, boot the Live CD with the ALSA cheatcode on the boot prompt, and then hard drive install from the CD with the cheatcode. It appeared that in v3.3, installing from the CD with "certain" boot cheatcodes, would be inherited from the CD boot, to the hard drive install... (ALSA being one of these "certain" cheatcodes)

I guess, I plan to do the same thing when I re-install v3.4 - using the ALSA boot cheatcode on the CD, and then using that boot to hard drive install with. (hopefully, it will work again, with this new version, and that they didn't change that on this new version ( ? ))

I hope that this isn't the way, and that someone else has gotten ALSA to work the "right" way, as I have come to know it should be done: apt-get the packages, set them up, compile the source to the kernel, etc... I tried that way in v3.3, and got pretty much where you are now, with the previous version... So, I will be watching to see if anyone else can help you out, and probably be using that, if it gets you working...

I am not sure if this, has helped, other than the fact, you weren't alone with this. That someone else has been where you are, if not in the current version, but from the previous version,
Ms. Cuddles