ATI Adapters README file : Video modes
Previous: xorg.conf specifications
Next: Known problems and limitations

6. Video modes

Mode timings can be derived from the information in X's doc subdirectory. However, it is no longer required to specify such timings in an xorg.conf's ``Monitor'' section(s), if only standard mode timings are to be used. The server automatically inserts VESA standard mode timings in every ``Monitor'' section, and these modes will be checked first for mode constraints (monitor sync tolerances, video memory size, etc.).

Furthermore, it is also no longer required to specify mode names in ``Display'' subsections. Should no mode names be specified (or those specified do not yield a usable mode), the server will automatically select as a default resolution the largest usable mode, whether or not the chosen mode is specified in the corresponding ``Monitor'' section.

For a digital flat panel, any sync tolerances should be removed from the corresponding ``Monitor'' section. The driver will automatically calculate these from the mode that is active on server entry. The driver also inserts timings for a mode called "Native panel mode" that represents the panel's native resolution.


ATI Adapters README file : Video modes
Previous: xorg.conf specifications
Next: Known problems and limitations