IBM ThinkPad T22 2647 Supplementary Manual page 28

Solving computer problems
Problem: Your computer does not enter standby or hibernation mode.
Solution: Check whether any option has been selected that would disable
your computer from entering standby or hibernation mode.
Problem: The computer does not enter standby mode as set by the timer
under Windows 98 or Windows NT
Solution:
For Windows 98:
The generic CD-ROM or DVD-ROM driver for Windows 98 accesses the
internal CD-ROM or DVD-ROM drive every 3 seconds to see whether a
CD-ROM is inserted there. This prevents your computer from entering
standby mode even after a timeout. To enable the computer to enter standby
mode, do the following:
1. Click Start.
2. Move the cursor to Settings and Control Panel.
3. Click Control Panel, and then double-click System.
4. Click the Device Manager tab.
5. Click the + mark of CD-ROM.
6. Double-click the name of the CD-ROM or DVD-ROM.
7. Click the Setting tab.
8. Clear the Auto insert notification check box.
Windows 98 no longer detects the insertion of a CD-ROM or a DVD-ROM
automatically.
For Windows NT:
If you enable the CD-ROM AutoRun feature, the timer cannot triggers the
computer to enter standby mode. To enable the timer in this situation, edit the
configuration information in the registry as follows:
HKEY_LOCAL_MACHINE\SYSTEM\
CurrentControlSet\Services\Cdrom\
Autorun: 0x1 > Autorun: 0
Problem: The Fn+F12 key combination does not cause the computer enter
hibernation mode.
Solution: Enable hibernation mode as follows:
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ThinkPad T22 Service and Troubleshooting Guide
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