Hibernate fn doesn't work - Dell Latitude D810 PC Notebook

The specially colored "Fn" key is intended to work for extra functionality. Try combining the Fn + Function keys where key symbols vary from system manufacturer so I can't tell how which key will work to re-enable your screen back (try Fn + F7).

F1 - Security System

1

Press and hold the "Fn" key on the lower left-hand corner of your Toshiba keyboard.

2

Press the "F1" key to activate the security system.

Your laptop's screen will go blank so others can't see what you are working on or accessing.

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3

Press any key or touch the touchpad to exit the security mode.

F2 - Power Save Mode

4

Press and hold the "Fn" key.

5

Press the "F2" key to activate the Power Save mode and make changes to how your laptop handles operating on battery or AC power.

6

Press "Fn" and the "F2" key again to exit the power save mode.

F3 - Standby Mode

7

Press and hold the "Fn" key.

8

Press the "F3" key to place your laptop in Standby mode.

The Standby dialog box will appear.

9

Verify you want to enter Standby mode. Press the power button on your Toshiba laptop to exit Standby mode.

F4 - Hibernation Mode

10

Press and hold the "Fn" key.

11

Press the "F4" key to activate the Hibernation mode and save whatever documents and files that are open to your hard drive.

12

Verify you want to enter Hibernation mode. Press the power button on your Toshiba laptop to exit Hibernation mode.

F5 - Active Display Device/F6 and F7 - Toshiba LCD Screen Brightness

13

Press and hold the "Fn" key.

14

Press the "F5" key to change your laptop's active display device from the laptop screen to an external monitor.

15

Click on the display configuration you want: displaying on both the laptop and external monitor; only on the laptop; only on the external monitor; or a specific screen resolution.

16

Press and hold "Fn" and "F5" to accept the new display settings. Press and hold "Fn" and "F5" again to return to your laptop's display only.

17

Press and hold the "Fn" key.

18

Press the "F6" key to decrease your laptop's screen brightness. Press the "F7" key to increase the brightness.

F8 - Wireless Connection/Bluetooth

19

Press and hold the "Fn" key.

20

Press the "F8" key to select the wireless Internet or Bluetooth connection you want to use.

21

Press and hold "Fn" and "F8" to make your selection. Release the keys to confirm your selection.

F9 - Touchpad Control

22

Press and hold the "Fn" key.

23

Press the "F9" key to enable your laptop's touchpad.

24

Press and hold "Fn" and "F9" again to disable the touchpad.

F10 and F11 - Numeric Keypad/F12 - Scroll Lock

25

Press and hold the "Fn" key.

26

Press the "F10" key to enable your Toshiba laptop's numeric keypad.

27

Press and hold "Fn" and "F11" to enable the cursor control keys on the numeric keypad.

28

Press and hold the "Fn" and "F10" or "F11" key to disable the numeric keypad or cursor control keys.

29

Press and hold the "Fn" key.

30

Press the "F12" key to lock your cursor on a specific line of text. Press and hold "Fn" and "F12" to turn scroll lock off.

hope this helps

you can't get stuck in hibernation. just do a hard reboot and if that doesn't work then do a safe mode boot up. If that doesn't work try booting up with the windows disk. finally if none of that works its your computer thats messed up not hibernation

Maybe the little sensor or pin that sticks up and is pushed in when you close the lid is broken and the software doesn't realize the lid has been closed.

Would you would be happier having to reprogram it every time you turned it on? Hibernation doesn't use much current.

Trying using the "numlock" key it should undo the Fn hot keys. If your notebook is in hibernate state, using the power-up switch on the notebook will activate you notebook. This will ask you for a password, if you have been using one to logon to you notebook. The FN+F4 or F5 will toggle between a blank screen and a display.

Key Combination Functionality
Fn+F3 Reduce speaker volume
Fn+F4 Increase speaker volume
Fn+F5 Switches display: LCD, CRT, and LCD/CRT simultaneous
Fn+F6 Increase LCD brightness
Fn+F7 Decrease LCD brightness
Fn+F10 Toggles battery warning off and on
Fn+F11 Switches the LCD panel off and on
Fn+F12 Places the computer into Hibernate mode

contact IBM as it seems some hardware issue in case if the keypad is done u have to change it so incase if the system is under warranty contact them

Press the FN key and the F5 key at the same time. You MIGHT have it in other monitor mode.

Function Hotkey
Display system information. fn+esc
Open the Help and Support Center. fn+f1
Open the Print Options window. fn+f2
Open a Web browser. fn+f3
Alternate between computer display and external display. fn+f4
Initiate Hibernation. fn+f5
Initiate QuickLock. fn+f6
Decrease screen brightness. fn+f7
Increase screen brightness. fn+f8
Play, pause, or resume an audio CD or a DVD. fn+f9
Stop an audio CD or a DVD. fn+f10