Known limitations for the Lenovo Enhanced USB Port Replicator (43R8770)
Lenovo Enhanced USB Port Replicator limitations

DVD playback
The latest ThinkPad® notebook computers, including ThinkPad X300, support Windows Media® Digital Rights Management (DRM), and do not support the protected DVD content passing through a USB port. Therefore, when an external monitor is attached to the Lenovo Enhanced USB Port Replicator, some pre-installed applications such as WinDVD 5.0 and Windows Media Player cannot play the protected DVD content. If you encounter any problems when playing a DVD on the external monitor attached to the Lenovo Enhanced USB Port Replicator, close the playback window, and play the DVD directly on the liquid crystal display (LCD) or the external monitor attached to the Video Graphics Array (VGA) port on your notebook computer.

Screen flashes
For maximum convenience, the Lenovo Enhanced USB Port Replicator can be easily hot docked or undocked from your notebook computer at any time. The screen might flash several times when the notebook computer boots up or resumes from suspension or hibernation. This is normal behavior in the Microsoft® Windows Vista® operating system that occurs when the Lenovo USB Port Replicator initializes.

Presentation Director
When used with some systems, the display utility customized for use with the port replicator will override Lenovo Presentation Director when the user selects Fn + F7. A popup box will appear directing the user to go to that specialized utility to make display selections. On other systems, Presentation Director will function normally.

External monitor
With a Thinkpad X300 notebook system, while in Windows XP, the external monitor cannot be set to primary. The LCD must remain primary and the external monitor set to secondary. While under Windows Vista, the external monitor can be set as primary and the LCD set to secondary. This situation is currently under investigation.

 

Troubleshooting Tips

When your USB Port Replicator does not operate as expected, check these items first to try and correct the problem.

General

Power Indicator
The Power Indicator of the USB Port Replicator does not grow amber or green. Ensure that the AC adapter provided is plugged into the USB Port Replicator and into a working electrical outlet. Do not use any AC adapters other than the one supplied with the USB Port Replicator.

USB Port Replicator unable to connect
Your notebook computer does not connect to the USB Port Replicator while the power light or connection indicator is amber. Unplug the USB 2.0 cable from your notebook computer, wait for at least five seconds, and then reinsert the USB 2.0 cable. If the problem persists, try connecting the USB 2.0 cable to a different USB 2.0 port of your notebook computer.

USB Port Replicator is not working correctly
The indicators and are both illuminated and the USB Port Replicator is not working correctly. This indicates a malfunction of the USB Port Replicator. Disconnect the Port Replicator from your notebook computer. Remove the power plug. Reconnect the power to the USB Port Replicator and reconnect the USB cable to the notebook computer. If the problem persists, uninstall and reinstall the driver for the USB Port Replicator.


Video Output

The display on your monitor is blank

  • Verify that the notebook computer connected to the USB Port Replicator is running correctly and is not in Standby or Hibernate mode. When the notebook computer is in Standby or Hibernate mode, the monitor display is always blank.
  • Verify the following items:
    • The USB 2.0 cable is inserted correctly in your notebook computer.
    • The USB 2.0 cable is connected to the USB Port Replicator.
    • The AC adapter is connected to the USB Port Replicator and a working power outlet.
    • The video cable is securely connected to the VGA video output port and is secured with the screws on both sides.
  • Verify that the display drivers are installed according to the installation steps and the icon for the Lenovo Enhanced USB Port Replicator is visible in the system tray.
  • Verify that the video output is not disabled after you have pressed the DualView button for more than three seconds or by selecting Disable in the utility in the system tray. Press and release the DualView button to check if the video output was disabled.
  • If the problem persists, disconnect the USB Port Replicator from your notebook computer. Remove the power plug from the USB Port Replicator. Reconnect the power and the USB cable to the notebook computer.

 

Playing back video in Extended mode
When you are in the Extended mode and playing back video clips, only one video clip can be seen. When in the Extended mode, only one video play back 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 screen and the other to the external monitor.


Display on your external monitor is blurred
The display on your external monitor is blurred, auto-adjust the external monitor occasionally to realign its settings with the video output of the USB Port Replicator. This action fixes most of the issues related to the quality of the video on the external monitor. Refer to your notebook computer user's guide for instructions on the auto-adjust procedure.

External monitor flickering
The external monitor connected through the USB Port Replicator is flickering. Flickering is usually associated with CRT monitors using a low refresh rate. Always try and use the maximum refresh rate available:

  • In the Extended mode, increase the refresh rate of the external monitor.
  • In the Mirror mode, increase the refresh rate of your notebook computer screen, which in turn increases the refresh rate of the external monitor.

For more information about the supported refresh rates, see Adjusting Video Settings on page 10.


Cannot change ThinkPad® display settings using ThinkVantage® Presentation Director
You cannot use ThinkVantage® Presentation Director to change your ThinkPad® display settings when you attach external monitors on both USB Port Replicator VGA port and ThinkPad VGA port. ThinkVantage Presentation Director cannot be used for ThinkPad display settings when the USB Port Replicator connected. To set up the display property for multiple external monitor, do the following:

  • To change the display settings of the external monitor attached on USB Port Replicator, click the USB Port Replicator icon in system tray and set up in the popup setting menu.
  • To change the display settings of the external monitor attached on ThinkPad VGA port, do one of the following:
    • For Windows Vista, right-click the blank area on the desktop, click Property to open the Display properties window and set up there.
    • For Windows XP, right-click the blank area on the desktop, click Personalize to open the Display properties window and set up there.


Audio

No audio
You cannot hear anything through your notebook computer speakers or you cannot use Microphone-in port or audio-out port on the notebook computer. Lenovo notebook computers default to the USB audio when the USB Port Replicator is connected, disabling your notebook computer built-in speakers and audio ports. To enable your notebook computer built-in speakers and audio ports:

  1. Open the Control Panel, select Sounds > Audio Devices .
  2. Perform the following steps for Windows Vista:
    • Select the Playback tab, and then select a device that is not USB Audio.
    • Select the Recording tab, and then select a device that is not USB Audio.
  3. Perform the following steps for for Windows XP:
    • Select the Audio tab, and then, under Sound Playback and Sound Recording, select a device that is not USB Audio.
      Note: To enable this change, close the application currently using the audio device and restart it.

 



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Country Availability
AvailableWorldwide
Document ID : HT002171
Legacy Document ID : MIGR-69755
Last Updated :
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