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Chapter 5. Troubleshooting
35
The computer does not
return from sleep mode and
the computer does not
work.
If the computer does not return from sleep mode, it
may have entered hibernation mode automatically
because the battery is depleted. Check the power
indicator.
If your computer is in sleep mode, connect the AC
adapter to the computer, then press any key or the
power button.
If your computer is in hibernation mode or power-off
state, connect the AC adapter to the computer, then
press the power button to resume operation.
Note:
If the system still does not return from sleep mode, your system has stopped responding, and
you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the
computer, press and hold the
power button for 4 seconds or more. If the computer is still not
reset, remove the AC adapter.
Computer screen problems
The screen is blank. Do the following:
- If you are using the AC adapter, or using the
battery, and the battery status indicator is on, press
to make the screen brighter.
- If the power indicator is in blinking, press the
power button to resume from the sleep mode.
- If the problem persist, follow the solution in the
following problem “The screen is unreadable or
distorted.”
The screen is unreadable or
distorted.
Make sure that:
- The display device driver is installed correctly.
- The screen resolution and color quality are correctly
set.
- The monitor type is correct.
Incorrect characters appear
on the screen.
Did you install the operating system or programs
correctly? If they are installed and configured
correctly, have the computer serviced.
39


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