Maybe this bug is fixed in latest gnome-dvb-daemon release:
Version 0.2.1 - 2011-05-23
=============
DVB-T brute-force scan works correctly, again.
- Fixed binding gettext domain
- gnomedvb: Set window position of preferences window
- gnomedvb: Launch gnome-dvb-setup when pressing on preferences button
- Manager: disconnect from destroyed signal before destroying Scanners in shutdown
- Adjusted DVB-T brute-force scan to new signature of AddScanningData method
Maybe this bug is fixed in latest gnome-dvb-daemon release:
Version 0.2.1 - 2011-05-23
=============
DVB-T brute-force scan works correctly, again.
- Fixed binding gettext domain
- gnomedvb: Set window position of preferences window
- gnomedvb: Launch gnome-dvb-setup when pressing on preferences button
- Manager: disconnect from destroyed signal before destroying Scanners in shutdown
- Adjusted DVB-T brute-force scan to new signature of AddScanningData method
Latest release can be downloaded from http:// download. gnome.org/ sources/ gnome-dvb- daemon/ 0.2/
Please update Ubuntu packages to gnome-dvb-daemon 0.2.1.