Originally Posted by RAZOR0018
What is DDC and what should it be set as when disabled in control panel? I had to do this in order to stop the desktop refresh every log on after restart with ati 6.7+cp installed. I also found this while googling:
Iím experiencing the 60Hz refresh rate bug after installing the drivers...
In Windows 2k/XP, ALWAYS disable DDC in the ATI "Displays/Monitor" CP after installing drivers to be able to use ALL the refresh rates and resolutions your monitor supports.
The quote you found via Google is directly from the instructions included in the Omegadrivers.
DDC Enabled restricts the monitor from going into Resolutions and Refresh Rates that the installed drivers understand as being "out of range" for that particular monitor. If the video drivers don't recognize the display/monitor that's connected, the default resolution and refresh rate will be used.
So, the workaround for this limitation is to Disable DDC so that the otherwise "KNOWN" resolutions and refresh rates can be used. However, it CAN cause permanent damage to the display device if the ACTUAL limitations are exceeded.