Question about Dell Latitude D600 Notebook

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Serial keyboard I'm still lost! I have a couple of generic old keyboards - which don't require any special drivers when you plug them into PS2 ports. I think the appropriate keyboard driver is on the machine, but it doesn't know to use it with the serial port. I saw something on the Microsoft site saying that for NT the drivers add registry entries associating the keyboard with a port, but I couldn't find an example for XP. To get this done I would need more explicit instructions.

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  • p_kies Jan 26, 2009

    I gave up and got the port replicator back. Finding drivers for the com port and an old keyboard was next to impossible without knowing exactly where to look for them. The bulk of the drivers I could find on the net were for newer PCs, newer keyboards or different equipment entirely. I guess it's all about selling new equipment and nobody cares about making laptops compatible with old peripheral devices. Without a PS2 port on the back, you either have to buy the port replicator or a USB or wireless keyboard. FYI, the original question was posted at

  • p_kies Jan 26, 2009

    Yeah - I have the same connector, PS2 to serial - which I've similarly employed with an optical trackball. But keyboard is somehow a different issue; hook it up and the machine doesn't even recognize that new hardware is attached.

  • Randall  Trahan
    Randall Trahan May 11, 2010

    p_kies: Here is the official MSN keyboard troubleshooting technique. As you can see all hardware devices need a driver. Also, with the low cost of keyboards you may want to measure if this is worth your time against buying a new keyboard.
    The keyboard is not functioning

    loadTOCNode(2, 'moreinformation');

    If the keyboard is not functioning, make sure that it is connected correctly to the computer. Check all the keyboard's plugs (PS/2 and USB) to make sure that there are no loose connections.

    If an adapter (USB to PS/2 or PS/2 to AT) is being used, verify that it is the adapter that came with the keyboard or that the keyboard supports adapting to a different port. For example, the Internet Keyboard does not adapt to a USB port, and a PS/2 to USB adapter will not work. It does not include an adapter.

    If the issue continues to occur, connect the keyboard to a different computer. If the keyboard functions correctly on a different computer, the port to which the keyboard was connected on the original computer may be damaged. If this is the case, contact your computer manufacturer to inquire about how to repair or replace the damaged port.

    If the keyboard does not function correctly on another computer, the keyboard may be defective. If this is the case, and the warranty on the keyboard is still valid, you can exchange the defective keyboard for a new keyboard.

    To remove and then reinstall the driver, follow these steps:

    1. Disconnect the device from the computer.
    2. Turn off the power for the device, if the device has a separate power supply.
    3. Open Device Manager.

      Note If your device is not listed, this means that the device was removed automatically when you disconnected the device. Continue to the next step.
    4. Restart the computer.
    5. Turn the power back on for the device, if you have to, and then plug the device into the computer. Your computer detects the device, and then reinstalls the drivers for the device.
    To download the latest drivers for the keyboard that you are using, visit the following Microsoft hardware Web site: To change your port connection:

    1. Shut down your computer, and then plug your device into the correct port.
    2. Make sure that the plug is pushed securely into the connector on the computer.
    3. Restart your computer. Microsoft Windows detects the change, and then installs the drivers on the new port automatically.


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  • 520 Answers

Have you tried just plugging keyboard have usually 2 ext ports one for ext keyboard and one for mouse you can also use usb keyboard/mouse.
if you have a problem with existing keyboard have you tried the on screen keyboard....start,all programs,accessories,accessability,on screen keyboard..when u say serial port do u mean the com port..
for com port you have to assign keyboard and you will need drivers cos not recognised as plug and play

Posted on Jan 26, 2009

  • tat4u
    tat4u Jan 26, 2009

    even though I have ps2 mouse I use a usb track ball cos its much faster and easier to can get a serial to ps2 connector Ive got one somewhere.dont even know where or why I got it ..maybe it came with some hardware I got yrs ago.

  • tat4u
    tat4u Jan 26, 2009

    keyboards wont work via serial to ps2 I think thet were only designed for mouse and ext cables...its a long time ago since a dealt with serials and parrallel ports but if I remember correctly

    serial was for direct imput for shell ext and parrallel could program better but needed software.I used a interface via serial to program my cards for satellite you could also crack sky with a interface card(plugs into sky like regular card but links upto pc)

    you could also top up dead telephone cards,not that I did,,mmm


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1 Answer

Keyboards doesn't work

sometime windows has some driver error or maybe your usb port or ps2 port for keyboard broken. If your keyboard connect into usb port, please Try into other usb port.
this is because of broken keyboard or broken port. Try using a new keyboard or good keyboard to see the diffrent.

By the way here the other solution link..
Laptop Keyboard Not Working Here What To Do


Jan 20, 2014 | Computers & Internet


How to troubleshoot keyboard issues?

Wireless Keyboard:
If only some of the keys don't work skip to the section Some Keys Don't Work below.
  1. Resynchronize the keyboard. Press the connect button on the keyboard for 5 seconds. Then press the connect button on the receiver for 5 seconds
  2. Change the batteries.
  3. Try reseating the receiver if possible.
  4. Try positioning the keyboard closer to the receiver.
  5. Skip to the section Generic Troubleshooting below.
Some Keys Don't Work:
  1. Check if any of the num lock key, shift lock key, etc are causing the issue. This is especially prevalent on laptops which don't have a distinct numeric keypad.
  2. If it's only the multimedia or hotkeys that don't work then try installing the specialized multimedia keyboard software that came with the system/keyboard.
  3. Try reseating the keyboard and rebooting.
  4. Go into Accessibility Options in Control Panel and check that Sticky Keys, Filter Keys and Toggle Keys are all switched off.
  5. Check if the problem occurs in the BIOS. A good screen to test with is the create BIOS password screen if the keys don't work here then a new keyboard is in order.
  6. Continue on to Generic Troubleshooting.
No Keys Work:
  1. Try reseating the keyboard and rebooting.
  2. Try power draining the system. This can be particularly effecitive with a laptop.
  3. If this is USB try a different port.
  4. Try entering BIOS - if you cannot get into BIOS then the keyboard probably needs to be replaced.
  5. Go on to Generic Troubleshooting below.
Generic Troubleshooting:
  1. Try uninstalling and reinstalling the keyboard driver and reboot
  2. Try system restore back to before the problem occurred
  3. Check for malware or 3rd party software that may be interfering with the function of the keyboard.

on Jun 10, 2010 | Computers & Internet

1 Answer

Mouse not detected

Make sure you have the mouse plugged in tight in the back of the computer before you start the computer.

There are two types of mouse interfaces: the PS2 Serial Style (round) and the USB Style (flat square).

If you have the PS2 round type it must plug into the Green Port on the back of the computer. The purple port is for the Keyboard. Also, the PS2 type is not Plug and Play. You cannot unplug it and plug it back in while the computer is running if you do the computer must be rebooted.

The USB type mouse is plug and play. You can take it out and put it back in without having to reboot the computer.

If you have a usb type mouse maybe the usb port that you have it plugged into is not working. Try plugging it into another usb port.

May 03, 2012 | HP Compaq 2230s Notebook

1 Answer

Cant get my keypad to work after useing a wireless one

Is the keypad you're trying to get to work one that is on a keyboard? If so does the keyboard connect with a serial port (round) or a usb port (flat and squared)? Serial ports will require you to reboot. They are not plug and play. if you can't find the wirelss keypad under Start/Programs to uninstall it, try Start/Control Panel and uninstall it there. If you still can find the uninstall, click Start/Control Panel and go into your device manager, look for keyboards or input devices and disable the wireless one by right clicking on it.

Mar 19, 2012 | Advent Computers & Internet

1 Answer

I have a SK 6000 keyboard with a touchpad/mouse. I have 2 questions: First: the mouse/touchpad connection is a nine-pin com port how can I convert this to PS2 and/or USB (the keyboard connection is...

Get a "Serial to PS2 converter" or a "Serial to USB converter" from the market. Now connect one and of the converter (the 9 pin side) to the keyboard and the other side to the PC.
Make sure that all USB functionality is enabled in the BIOS, especially USB Legacy Mode.

Yes in window 7 it gives some issues as you need to get the proper driver software for windows 7.

Dec 15, 2011 | Computers & Internet

1 Answer

I hav a dell i14r my main keyboard is locked im usingon screen keyboard ,how do i fix or unlock myman keyboard


Is the keyboard usb or ps2? If its usb then try another port. If its ps2(Green) then power down the pc by holding in the power button for 8 to 10 seconds. Pull the plug and make sure no pins are bent. Plug it back in and boot back up. This should fix the problem if its ps2.

Good luck

May 28, 2011 | Computers & Internet

1 Answer

Sony vaio laptop is turning on but the keybord+mouse not working

If your Keyboard and mouse are PS2 type, turn off your system, unplug them and try a USB type mouse and keyboard instead. If you are already using USB type mouse and keyboard, then try plugging them into different USB ports. Bootup in Safe Mode if possible. If you do not have keyboard functionality during the initial boot process, you may have sustained damage to the motherboard. The fact you mentioned a noise (speaker type?) and then lost component function, would indicate a possible hardware failure

Apr 14, 2010 | Computers & Internet

1 Answer

Instructions on installing a keyboard for Vaio VGN CR510E

We are talking about a standard keyboard and a standard computer??? Is it USB or something else?

Normally, I would expect to simply plug the keyboard into the appropriate port. You might have special software for special features on your keyboard. But even without the software, the standard keys should operate with nothing more than a plug in. The plug may be color coded to match the port.

Do you need more help ... Id like to help you. I need additional information to go forward.



Sep 23, 2009 | Sony VAIO VGN-CR510E/L Laptop

1 Answer

External keyboard hookup issue

Yes, you can establish your serial port in BIOS With the use of USB ports on computers the serial and com ports are not set up many times. Upon start up and before the windows login screen will see which key to hit to get into BIOS. It is usually an F# key. Once inside BIOS look for ports and toggle until the serial port is showing up. That will establish your serial port.

Don't forget to rate this solution before logging off.

Jan 22, 2009 | Dell Latitude D600 Notebook

2 Answers

Help please tell me why my keys will not work on my laptop.

Try using an external USB desktop keyboard (or a PS2 keyboard, if you have a PS2 jack on the laptop).

If everything works then, your laptop keyboard is malfunctioning. This is usually due to one of three causes:

1. One key is stuck in the "down" or "depressed" position (collapsed/dented silicone cup beneath, or damaged flex legs under key). Look at the keyboard from the side, to see f any key looks lower than the rest (or higher than the rest) Be careful taking it apart to clean and reassemble.

2. Bad ribbon connector, torn, or merely corroded/oxidized keyboard cable connector. This requires opening the laptop to fix. Usually 2-3 screws under laptop labeled as keyboard, allow it to be pried off. Release the cable LOCK, and remove the thin ribbon cable. Reinsert it 5-6 times to clean off contacts, and LOCK the jack again once you are sure it is all snug. If the ribbon was TORN, you will need a new one. Good luck, not easy to find on old laptops.

3. Worst scenario... someone spilled coke (the worst) or beer/beverage inside the keyboard. This eats up the printed oxide connectors, and this cannot be repaired. you will need a new keyboard assembly.. Use a magnifying glass to look between keys, to see if there is stickey, gooey material there. This would be the bad news indicator for number 3.

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