xawtv doesn't saves settings for my tv tuner

[spurious]

Your xawtv configuration file is: ~/.xawtv. Edit this, and look for the line 'use-wm-fullscreen = yes'

Then do this:

Edit /etc/X11/XF86Config-4, scroll down until you find: Section "Module"

Then add this line: Load "v4l". This loads the video4linux X11 module.

If that doesn't work, your video card may also need the bttv module explicitly loaded at boot. For example, my ATI TV-Wonder VE requires the following line inserted into /etc/modutils/actions: options bttv card=64 tuner=2 (then run update-modules)

For other xawtv configuration options, run configure_xawtv, although I believe that the newer versions of Knoppix have a 'configure tv' option in the Knoppix menu (I still run Knoppix 3.2).