Thank you, James! Using gnomeradio with "v4l2" driver did the trick and it works again. So, most probably the problem is in v4l1 module, not in "saa7134" or "tuner" modules as I thought before.
Thank you, James! Using gnomeradio with "v4l2" driver did the trick and it works again.
So, most probably the problem is in v4l1 module, not in "saa7134" or "tuner" modules as I thought before.