Blackmagicdesign DVI Extender, Инструкция по эксплуатации

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Troubleshooting
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Q. Why can’t I find a particular video mode listed for my graphics card, e.g. 1920 x 1080 at 59 Hz,
even though other video modes are listed?
A. Your graphics card might not support this mode. Graphics cards have traditionally been created to
support computer resolutions and frequencies. More recent graphics cards have added some support
for television video modes but might not support all video modes. In particular, we have noticed the lack
of support for 1920 x 1080 at 59 Hz (HDTV 1080i59.94) on a considerable number of computers. Please
check the specifications of your graphics card and check for updated graphics drivers.
Q. Why can’t I output 1920 x 1080 at 59 Hz (HDTV 1080i59.94) when using Video Mode with
Windows 7RC and an NVIDIA graphics card?
A. When attempting to set the DVI Extender display to 1920 x 1080 at 59.94 Hz, NVIDIA drivers for Windows
7RC may display 59 Hz but are really outputting at 60 Hz. There appears to be no way to output HDTV
1080i59.94 with the NVIDIA drivers for Windows 7RC. Please check the NVIDIA website for updated
drivers, to resolve this problem, once Windows 7 has been released by Microsoft.
Q. Why does my video appear jerky through DVI Extender even though it looks fine on my primary
computer monitor?
A. If movement, such as the movement of a mouse, looks smooth on your primary computer monitor but
appears jerky via DVI Extender, then your graphics card is not performing fast enough to support a
second display at full frame rate. Choosing to mirror your primary and secondary displays should ensure
smooth output via DVI Extender and the primary computer monitor. Alternatively remove the primary
computer display so that DVI Extender is the only display output. Either of these methods should help
your graphics card to output video at full frame rate so that all video movement is smooth. Sometimes
it helps to restart the computer after using one of these methods to ensure the computer provides
smooth video output. Alternatively a more powerful graphics card may solve this problem. Expensive
graphics cards do not necessarily help provide full frame rate support for two displays and it is best
to ask your reseller for advice as to which graphics card is best for your computer. Typically a suitable
graphics card should cost under US$100.
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