How to write good problem report
From V4LWiki
Good problem report should include
0. Note that you are using V4L CVS.
1. Name of card
2. lspci -vn
3. Dmesg log of module tuning and probing. It also nice to add audio_debug options to modules, tuner_debug option to tuner module and debug option to tda9887
4. Television standard for your country.
5. Exact sequence of actions that causes problem.