Lenovo ThinkPad T21 English - 46L4325 - ThinkPad T20, T21User's Reference guid - Page 44

LCD problems

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Hardware troubleshooting Problem The Fn+F12 key combination does not make the computer enter hibernation mode. Cause and action Enable hibernation mode as follows: For Windows 98: 1. Start the ThinkPad Configuration Program 2. Click Power Management. 3. Click the Hibernation tab. 4. Click the Enable hibernation... button. 5. Click the Create Now button. The computer cannot enter hibernation mode if you are using one of the IBM communication PC Cards. To enter hibernation mode, stop the communication program, and then remove the PC Card or disable the PC Card slot, using the Control Panel. For Windows NT: Note: In Windows NT, you can use hibernation mode only if your hard disk has been formatted in the FAT format. If you format your hard disk with NTFS, the default format in Windows NT, you cannot use hibernation mode. 1. Start the ThinkPad Configuration Program. 2. Click Power Management. 3. Click Suspend/Resume Options. 4. Click Enable Hibernation. 5. Click OK. The computer cannot enter hibernation mode when you are using one of the IBM communication PC Cards. To enter hibernation mode, stop the communication program, and then remove the PC Card or disable the PC Card slot, using the Control Panel. LCD problems Problem The screen is blank. Cause and action Press Fn+Home to make the screen brighter. If the problem persists, do the "Cause and action" for the next problem in this list. 28 IBM ThinkPad T20 User's Reference

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Hardware troubleshooting
Problem
Cause and action
The Fn
+
F12 key
combination does not
make the computer enter
hibernation mode.
Enable hibernation mode as follows:
For Windows 98:
1. Start the ThinkPad Configuration Program
2. Click
Power Management
.
3. Click the
Hibernation
tab.
4. Click the
Enable hibernation
... button.
5. Click the
Create Now
button.
The computer cannot enter hibernation mode if you are using one of the
IBM communication PC Cards.
To enter hibernation mode, stop the
communication program, and then remove the PC Card or disable the PC
Card slot, using the Control Panel.
For Windows NT:
Note:
In Windows NT, you can use hibernation mode only if your hard
disk has been formatted in the FAT format.
If you format your
hard disk with NTFS, the default format in Windows NT, you
cannot use hibernation mode.
1. Start the ThinkPad Configuration Program.
2. Click
Power Management
.
3. Click
Suspend/Resume Options
.
4. Click
Enable Hibernation
.
5. Click
OK
.
The computer cannot enter hibernation mode when you are using one of
the IBM communication PC Cards.
To enter hibernation mode, stop the
communication program, and then remove the PC Card or disable the PC
Card slot, using the Control Panel.
LCD problems
Problem
Cause and action
The screen is blank.
Press Fn
+
Home to make the screen brighter.
If the problem persists, do
the “Cause and action” for the next problem in this list.
28
IBM ThinkPad T20 User's Reference