Hardware troubleshooting
Problem Cause and action
When you try to start DVD
playback, a message
appears: “Unable to
create overlay window.”
or
While running video
playback, DVD playback,
or game applications, you
may get poor playback or
none at all.
Do either of the following:
If you are using LCD and external monitor simultaneously in 32-bit
color mode, change the color depth to 16-bit mode.
If you are using TV with 32-bit color, change the color depth to 16-bit
mode.
If you are using a desktop size of 1280x1024 or larger, reduce the
desktop size and the color depth.
Battery problems
Problem Cause and action
The battery pack cannot
be fully charged by the
power-off charging
method in the standard
charge time for your
computer.
The battery pack might be over-discharged. Do the following:
1. Turn off the computer.
2. Make sure that the over-discharged battery pack is in the computer.
3. Connect the ac adapter to the computer and let it charge.
If the battery pack cannot be fully charged in 24 hours, use a new battery
pack.
If you have an optional Quick Charger, use it to charge the
over-discharged battery pack.
Your computer shuts
down before the battery
status indicator shows
empty,
-or-
Your computer operates
after the battery status
indicator shows empty.
Discharge and recharge the battery pack.
The operating time for a
fully charged battery pack
is short.
Discharge and recharge the battery pack. If your battery's operating time
is still short, use a new battery pack.
The computer does not
operate with a fully
charged battery pack.
The surge protector in the battery pack might be active. Turn off the
computer for one minute to reset the protector; then turn on the computer
again.
30 IBM ThinkPad T20 User's Reference
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