Lenovo ThinkPad E580, Руководство пользователя, Страница: 79 / 142

• Problem : My computer is a Gigabit Ethernet model, but it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
Solution :
– Try another Ethernet cable.
– Ensure that the link partner is set to auto-negotiate.
– Ensure that the switch is 802.3ab-compliant (gigabit over copper).
Wireless-LAN problem
Problem : I cannot connect to the network using the built-in wireless network card.
Solution : Ensure that:
• The Airplane mode is off.
• Your wireless-LAN driver is the latest version.
• Your computer is within the range of a wireless access point.
• The wireless radio is enabled.
Bluetooth problem
Note: Check your connection anytime and ensure that no other Bluetooth-enabled device is searching for
the device to which you want to connect. Simultaneous searching is not allowed in the Bluetooth connection.
Problem : Sound does not come from the Bluetooth headset/headphones but comes from the local speaker
even though the Bluetooth headset/headphones is connected using a Headset profile or AV profile.
Solution : Do the following:
1. Exit the program that uses the sound device (for example, Windows Media Player).
2. Go to Control Panel, and ensure that you view Control Panel by Category.
3. Click Hardware and Sound ➙ Sound ➙ Playback .
4. If you are using a Headset profile, select Bluetooth Hands-free Audio and click Set Default . If you are
using an AV profile, select Stereo Audio and click Set Default .
5. Click OK to close the Sound window.
ThinkPad pointing device problems
• Problem : The pointer drifts when the computer is turned on or after it resumes normal operation.
Solution : The pointer might drift when you are not using the TrackPoint pointing device during normal
operation. This is a normal characteristic of the TrackPoint pointing device and is not a defect. Pointer
drifting might occur for several seconds under the following conditions:
– When the computer is turned on
– When the computer resumes normal operation
– When the TrackPoint pointing device is kept pressed for a long time
– When the temperature changes
• Problem : The TrackPoint pointing device or trackpad does not work.
Solution : Ensure that the TrackPoint pointing device or trackpad is enabled in the Mouse Properties
window. For more information, see “Customizing the ThinkPad pointing device” on page 19.
Chapter 7
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Troubleshooting computer problems
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