Ok, thanks for the info and recommendation.
First I tried Composite test with my camera, and it worked (It's showing frames normally in color).
Then I did some more goggling and find out this excellent guide Gentoo Wiki SAA7134
. I have followed troubleshooting and I don't know how but the "No signal" sign is gonne and it's showing me a channel now. All I did (I think) is removing and loading modules saa7134
. With and without that "autoprobing tuner" script. But after restart, it's still working whith default autoconfigured settings (dmesg output is the same).
However it get me sound in tvtime only after a command like
sox -c 2 -s -r 32000 -t ossdsp /dev/dsp1 -t ossdsp -r 32000 /dev/dsp &
That command is also from Gentoo wiki. So it seems that the sound driver is working, but the tvtime doesn't use /dev/dsp1 device and I didn't find in tvtime configuration how can I accomlish that it does.
Another problem is that it's showing only one channel, no mather if change channels with mouse wheel, or scan through channels in tvtime config menu. What can be the cause of this?
I'm not sure what I need to do with firmwares located on mcentral.de/firmware/
one archive contains bunch of firmwares, but none of them named xc3028-v27.fw
. If I just extract them following instructions on that site, nothing happens, still getting missing firmware issue. Do you suggest renaming them one by one ?
After I restart from Windows (not shutdown) the last viewed channel from a Windows app appears in tvtime. How is this possible, I don't know, but when I shutdown computer completely the "No signal" is still there
So I think I still need that firmware. But the Composite input is working, no matter of that.