Lenovo ThinkPad USB 3.0 Ultra Dock User Manual page 21

5. The computer can play back Web flashes. However, when you drag the window to the external
monitor and maximize the playback window, the playback stops.
To solve the problem, update your Adobe Flash Player to the latest version.
6. The video files cannot be played smoothly on the external monitor with a configured resolution of
3840 x 2160 pixels (30 Hz).
The ultra dock supports the videos with a frame rate slower than or equal to 24 frames per second (fps).
It consumes the notebook computer resource a lot when you play the video on the external monitor with
a configured resolution of 3840 x 2160 pixels (30 Hz). For more information about the recommended
system requirements, go to "System requirements" on page 3. The video with a frame rate faster than
24 fps may not be able to be played smoothly. You can downgrade the resolution of your external
monitor to achieve better performance.
Audio
You cannot hear anything through your notebook computer speakers or you cannot use the audio
connectors on the notebook computer.
By default, ThinkPad and other Lenovo notebook computers use the headset and microphone combo
connector on the ultra dock and disable built-in audio connectors when the ultra dock is connected.
To enable the built-in audio connectors on your notebook computer, do the following:
1. Right-click the Volume icon in the Windows notification area.
2. Select Sounds, and the Sound window is displayed.
3. Click the Playback tab to select a built-in audio device, and then click the Recording tab to select
another built-in audio device.
4. On the Playback tab, select a built-in audio device. On the Recording tab, select another built-in
audio device.
See "Manually setting the playback device and recording device" on page 11 for more information.
Notes:
1. To apply the new settings, restart the applications that are using the audio devices.
2. The settings you have adjusted will be saved until you change the settings next time.
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Chapter 1 ThinkPad USB 3.0 Ultra Dock
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