When you watch Live TV in Windows Media Center on a Windows Vista-based computer, a green screen is displayed after you change the channel to view an HDTV program

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SYMPTOMS

Consider the following scenario:

• You are watching Live TV in Windows Media Center on a Windows Vista-based computer.
• You change the channel to a program that is being broadcast in a high-definition television (HDTV) format.

In this scenario, a green screen is displayed instead of the expected Live TV program.

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CAUSE

This problem occurs if the following conditions are true:

• You have an Advanced Television Systems Committee (ATSC)-compliant tuner installed to receive over-the-air digital broadcasts from your local TV stations.
• You are using a video card driver on which the hardware vendor has disabled DirectX Video Acceleration (DXVA) for HDTV. However, DXVA is still enabled for standard-definition television (SDTV).
• You change the channel from a program that is being broadcast as SDTV to a program that is being broadcast as HDTV.

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WORKAROUND

To work around this issue, use one of the following methods:

• Try to resize the Windows Media Center window from full-screen to windowed and then back to full-screen.
• Exit and then restart Windows Media Center.
• Contact your graphics card vendor for an updated driver that may work around this issue in Windows Media Center.

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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APPLIES TO

• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition

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Keywords:

kbtshoot kbexpertisebeginner kbwinvistapostrtmfix KB945086

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