- You have a computer that is running Windows Vista or a later Windows operating system.
- Your computer supports two or more monitors.
- You have the Duplicate (Clone Mode) display configured.
- Your display is not set to use Windows Aero.
- You play a DVD movie in Windows Media Player or a third-party video application.
When it is playing video content such as a DVD, the operating system has to synchronize playback with the display redraw rate. The video frame is updated during the vertical blanking interval so that the complete, correct frame will be displayed without any tearing every time that the video card refreshes the monitor.
When windows synchronizes DVD playback with the monitor refresh rate, it synchronizes with the timing of the primary monitor. This is determined by the video driver. Some video hardware supports multiple monitors but does not synchronize the display redraw timing of the two monitors. Even though the two monitors are configured for the same refresh rate (for example, 60 Hz), the second monitor may not be refreshed at the same time. In this case, there may be unavoidable tearing on the second monitor.
Windows Vista or Windows 7If the computer system meets the hardware and software requirements to run Windows Aero, you may be able to reduce or eliminate the problem by enabling Aero. Otherwise, set the display to PC Only or Extended. For more information about Aero, go to the following Microsoft website:
If your computer does not meet the requirements for Aero, set the display to PC Only or Extended. For information about how to change this setting, go to the following Microsoft website:
Windows 8 or Windows 8.1Set the display to PC Only or Extended. For information about how to change this setting, go to the following Microsoft website:
To configure the refresh rate of the display:
- Right-click the Windows desktop, and then select Screen resolution
- Select Advanced settings
- Select List All Modes
- Select a resolution and refresh rate that is supported by all monitors. (Your monitors may support multiple refresh rates. See your manufacturer's documentation for information about the settings that your monitor supports.)
- Select OK, and then Apply.