Lenovo ThinkPad A21e English - A21e(2655) Service and Troubleshooting Guide - Page 25

Password problems, A power switch problem, Keyboard problems, Standby or hibernation problems - ibm drivers

Get Lenovo ThinkPad A21e PDF manuals and user guides View all Lenovo ThinkPad A21e manuals
Add to My Manuals
Save this manual to your list of manuals

Page 25 highlights

Solving computer problems Problem: The mouse or pointing device does not work. Solution: Make sure that the pointing-device cable is enabled in the ThinkPad Configuration Program. Make sure that the mouse or pointing-device cable is securely connected to the computer via the ThinkPad Port Replicator. Try using the TrackPoint. If the TrackPoint works, the error may be due to the mouse. If your mouse is incompatible with the IBM PS/2® mouse, disable the TrackPoint, using the ThinkPad Configuration Program. Note: For more information, see the manual supplied with the mouse. Problem: The mouse buttons do not work. Solution: Change the mouse driver to Standard PS/2 Port Mouse, and then reinstall IBM PS/2 TrackPoint. Drivers are provided in the C:\IBMTOOLS\DRIVERS directory on your hard disk drive. If your hard disk drive does not contain device drivers, refer to the ThinkPad Service & Support Web site. To access this Web site, open Access ThinkPad by pressing the ThinkPad button, then click the Service & Support image on the right of the screen. Problem: The scrolling or magnifying glass function does not work. Solution: Check the mouse driver in Device Manage window, and make sure that the IBM PS/2 TrackPoint driver is installed. Standby or hibernation problems Problem: The computer enters standby mode automatically. Solution: If the processor reaches a temperature that is too high, the computer automatically enters standby mode to allow cooling and to protect the processor and other internal components. Problem: The computer enters standby mode immediately after POST (the standby indicator turns on). Solution: Make sure that: v The battery pack is charged. v The operating temperature is within the acceptable range. Refer to "Specifications" in this Guide. Chapter 2. Solving computer problems 17

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
Problem:
The mouse or pointing device does not work.
Solution:
Make sure that the pointing-device cable is enabled in the ThinkPad
Configuration Program.
Make sure that the mouse or pointing-device cable is securely connected to
the computer via the ThinkPad Port Replicator.
Try using the TrackPoint. If the TrackPoint works, the error may be due to the
mouse.
If your mouse is incompatible with the IBM PS/2
®
mouse, disable the
TrackPoint, using the ThinkPad Configuration Program.
Note:
For more information, see the manual supplied with the mouse.
Problem:
The mouse buttons do not work.
Solution:
Change the mouse driver to
Standard PS/2 Port Mouse
, and then
reinstall
IBM PS/2 TrackPoint
. Drivers are provided in the
C:\IBMTOOLS\DRIVERS directory on your hard disk drive. If your hard disk
drive does not contain device drivers, refer to the ThinkPad Service &
Support Web site. To access this Web site, openAccess ThinkPad by pressing
the ThinkPad button, then click the Service & Support image on the right of
the screen.
Problem:
The scrolling or magnifying glass function does not work.
Solution:
Check the mouse driver in Device Manage window, and make sure
that the
IBM PS/2 TrackPoint
driver is installed.
Standby or hibernation problems
Problem:
The computer enters standby mode automatically.
Solution:
If the processor reaches a temperature that is too high, the computer
automatically enters standby mode to allow cooling and to protect the
processor and other internal components.
Problem:
The computer enters standby mode immediately after POST (the
standby indicator turns on).
Solution:
Make sure that:
v
The battery pack is charged.
v
The operating temperature is within the acceptable range. Refer to
“
Specifications
”
in this Guide.
Solving computer problems
Chapter 2. Solving computer problems
17