Problem: The critical low-battery error message is displayed, and the
computer immediately turns off.
Solution: The battery power is getting low. Connect the ac adapter to the
computer, or replace the battery pack with a fully charged one.
Problem: The computer display remains blank after you take action to return
from a sleep mode.
Solution: Check whether an external monitor was disconnected while the
computer was in standby mode. Do not disconnect the external monitor while
the computer is in standby mode or hibernation mode. If no external monitor
is attached when the computer resumes, the computer display remains blank
and output is not displayed. This restriction does not depend on the
resolution value. Press Fn+F7 to bring up the computer display.
Problem: The computer does not return from standby mode, or the standby
indicator stays on and the computer does not work.
Solution: The computer automatically enters standby or hibernation mode
when the battery is depleted. Do one of the following:
vReplace the battery with a fully charged one and then press Fn.
vConnect the ac adapter to the computer; then press Fn.
Problem: When you are using the port replicator, resuming normal operation
from hibernation or standby mode takes a long time.
Solution: If the Ethernet port is enabled, but the port replicator is not
connected to a network, resuming operation can take a long time. The
computer queries Ethernet until the timeout timer stops the query. If you
want to access Ethernet, connect the network cable. If you are not using the
network, disable the Ethernet port as follows:
For Windows 98:
1. In the Control Panel, double-click the System icon.
2. Click the Device Manager tab.
3. Double-click Network Adapter.
4. Double-click Intel EtherExpress PRO PCI Adapter.
5. Select the Disable in this hardware profile check box.
6. Click OK.
7. Close all windows.
8. Restart the computer.
Solving computer problems
18 ThinkPad
®
A22e Service and TroubleshootingGuide