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Chapter 5. Troubleshooting
This chapter provides some troubleshooting hints and tips to assist you if you experience any problems with
the port replicator. Check the following items rst to try to correct the problem.
General
1. The power and connection indicator of the port replicator is not on.
Ensure that the ac power adapter included with the port replicator is correctly connected to the port
replicator and a working electrical outlet. Do not use any adapters other than the one supplied with
the port replicator.
2. Your notebook computer does not recognize the port replicator, and the power and connection
indicator stays blue.
Disconnect the USB cable from your notebook computer, wait at least ve seconds, and reinsert it into
the USB connector of your notebook computer. If the problem persists, try connecting the USB cable to
a different USB connector of your notebook computer.
3. You connect the port replicator to a computer with the USB cable, but it does not work.
a. Ensure that the port replicator is well powered by its ac power adapter. The port replicator always
needs external power supply for operation, because it does not take power from the USB connector
attached to your notebook computer.
b. Ensure that the device driver of the port replicator is well installed and restart the computer if
necessary.
c. Make sure that the USB connector on your computer works well; if not, replace with other USB
connectors.
Video output
1. The monitor display is blank.
• Ensure that the notebook computer connected to the port replicator is running correctly and is not
in standby or hibernation mode. When the notebook computer is in standby or hibernation mode,
the monitor display is always blank.
• Ensure that the device drivers are installed following the installation steps and the icon for the port
replicator is visible in the taskbar notication area.
• Ensure that the video output function is not disabled.
• Ensure the following connections:
– The USB cable is correctly connected to your notebook computer.
– The USB cable is correctly connected to the port replicator.
– The ac power adapter is correctly connected to the port replicator and a working electrical outlet.
– The video cable is correctly connected to the DVI-I video output connector. For the connection of
the VGA connector, the DVI-I to VGA adapter is also secured by the screws on both sides of it.
• If the problem persists, disconnect all connections of the port replicator, and uninstall the port
replicator device drivers. Then, reinstall the device drivers.
2. When you are using Extend mode and playing back video clips, only one video clip is visible.
When you are using Extend mode, only one video playback application can be used at a time. If multiple
video clips are played back, only one video clip is visible to the user. This also applies to Web pages
with embedded video clips. To view these Web pages, move one page to the notebook computer
monitor and the other to the external monitor.
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