I found this ATI knowledge base article;
Basically, the article describes a registry tweak that enables the following HDTV modes;
To read the article, start at ATI Customer Care, enter 22853 in the search field, and click Go.
Note: You should reboot after adding the registry entry.
If you are using ATI's component video connection, then the screen shots wont match your configuration. Instead, you'll need to enable "Use Custom Formats" under Component Video Properties->Formats, and select 720p50 and 1080i25 from the list of custom formats.
Once you done that, the modes listed above can be found under Component Video Properties->Advanced.
This is definately worthwhile if you're in a PAL TV country.
737-22853: 50Hz refresh rate not available for European TV, HDTV and projectors
Basically, the article describes a registry tweak that enables the following HDTV modes;
720p50 standard (1280x720 @ 50Hz)
720p50 optimized (1152x648 @ 50Hz)
1080i25 standard (1920x1080 @ 25Hz)
1080i25 optimized (1776x1000 @ 25Hz)
720p50 optimized (1152x648 @ 50Hz)
1080i25 standard (1920x1080 @ 25Hz)
1080i25 optimized (1776x1000 @ 25Hz)
To read the article, start at ATI Customer Care, enter 22853 in the search field, and click Go.
Note: You should reboot after adding the registry entry.
If you are using ATI's component video connection, then the screen shots wont match your configuration. Instead, you'll need to enable "Use Custom Formats" under Component Video Properties->Formats, and select 720p50 and 1080i25 from the list of custom formats.
Once you done that, the modes listed above can be found under Component Video Properties->Advanced.
This is definately worthwhile if you're in a PAL TV country.