ThinkPad T540p Control key stuck

The control key of my ThinkPad T540p often got stuck. It is not physically stuck, but the computer often thinks it is pressed down. This happens from time to time, which is very annoying. When it happens, if I press Ctrl again, then everything is back to OK again.
I noticed that this problem seems to be pretty common in Lenovo computers. If you google search "Lenovo Control key stuck", you can find lots of similar reports!
Does anyone have any idea on how to solve it? Thanks!

Hi Nauhiuc,
Welcome to Lenovo Community!
Check uninstalling the keyboard adapter from “Device Manager” under Keyboards.
Run ThinkVantage system update utility to check for latest driver for your system.
ThinkVantage System Update
Hope this helps.
Best regards,
Hemanth Kumar
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Similar Messages

Control Key stuck ON

Dear HP, My wife and I both have had problems on our laptops where the keyboard gets stuck in a mode where it does wierd stuff.
I believe it has to do with resting our wrists on our laptops (our bad). And some how with our palms touching the keypad plus some key, we enter this mode.
Today, while replying to an email, I did it and realized that the Control Key was "stuck on". I press A and it would select all the text in the email. etc.
I tried updating the latest keypad driver and that created a whole differentset of problems. (I am not happy with the keypad driver sw!!!)
I read on the Microsoft forum that pressing both Ctrl keys would clear it. So next time it happens I will try it.
This is something that HP needs to post about defining the key stroke to get into this problem andthe key stroke to get out of it.
For us, it requires a reboot to clear this special model.
Thanks for listening,
Hank

Hello bruezzy,
You’re having a problem that the control key is sticking.
Go into device manager and uninstall the keyboard and restart the computer.
This will uninstall and reinstall the driver that controls the keyboard.
Here is a link that will show you how to get to and use device manager.
Also reset BIOS defaults.
This is what lets the software on the computer talk to the hardware.
Turn off the computer
As you turn it back on tap the F10 key. This will load BIOS setup utility.
Press F9 to load defaults
Press F10 to save and exit
When the computer boots back up, check to see if everything is working.
If everything was recently working correctly, you might try a system restore.
This will take the computer back to a time that everything was working correctly without affecting any of your files.
Here is link to a restore.
Clicking the White Kudos star on the left is a way to say Thanks!
Let me know how everything goes.
Have a good day.

Control Key Stuck At Times

A couple times a day my computer will act like the control key has been pushed and will open the shortcut that is with the letter I pushed. Sometimes it will cause the page to zoom in and out from scrolling the mouse. I had a L505 and it did this I replaced keyboard they replaced the system board and it still did it. I sold that computer and got a new L655-S5158 it is doing the same thing. This is really annoying because I never know when it is going to do it. Sometimes when I am typing a email or filling out an online forum it will reload the page and I will lose all my work. I thought it might be firefox so I switched back to Internet Explorer still does it. Does anyone know what is causing this.

Hello,
I can reproduce this bug (make Windows think the CTRL key is stuck down) at will, and I can unstick it too, on my Satellite L775.
To make the bug appear, I just hold down the CTRL key while using pinch-zoom.
To unstick the key, I just press both control keys simultaneously. This "unstick" method has always worked, except ONE time it did not and I had to reboot to unstick the CTRL key.
Obviously, the fact that the touch pad itself has a bug that frequently ignores the fact that I have it turned OFF and zooms or scrolls without warning when I get near it exacerbates this CTRL bug, but, anyway, I hope that being able to reproduce the bug reliably will help get it fixed.

Control key stuck

I recently purchased an X131E.
It's great but after an hour or so of being turned on it acts as if the control key is pressed, and makes it hard work using Office, IE etc...
A re-boot resolves it, but it just happens again soon after. I'm sure the key is not stuck, what could be causing this? How can I resolve it?
It's not the sticky keys as I have disabled that after trawling other forums
Any help appreciated.
Would this be covered under the warranty?

Hello Maido,
This could be a driver issue, try downloading the Update Retriever 5.00 tool, it will let you know if you have any driver updates, Its located half way down the site. With Update Retriever, you can manually initiate the search for update packages, or schedule an automatic search for new update packages at a specified time interval. Here is the System Update Solution Deployment Guide.
Update Retriever first time setup
When you launch Update Retriever the first time, you need to set up Update Retriever. To do the first
time setup of Update Retriever, do the following:
1. Launch Update Retriever.
2. On the Welcome screen, specify a repository folder and set the logon information by doing the following:
    a. Type or browse a repository path for the share drive used as the network share repository in the
        Repository path field.
    b. Type a user name and password for the share drive used as the network share repository in the
        user name and password fields.
3. In the Get new updates panel, click Add.
4. In the Add new systems window, set the triplet information for a system by doing the following:
    a. Type the applicable machine type. You can find the machine type on the bottom of a notebook
        computer or on the rear of a desktop computer.
    b. Select the applicable operating system.
    c. Select the applicable language.
    d. Click add and then click Save.
5. In the Get new updates panel, select the check box next to the applicable machine type you want to
    search for update packages.
6. Click Next and then click Finish to search for the applicable update packages. Update Retriever will
    place the update packages in the designated repository folder.
Thank you for being a part of the Lenovo Family,
Catie
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Sat SP10-804: XP Home thinks Control Key stuck down (XP SP2)

Satellite SP10-804
XP home as installed plus SP2
Occasionally XP thinks that the Ctrl key is stuck down. So it is impossible to log on, Word wants to start in 'Safe Mode' C is always Ctrl-C etc and the only solution I have found so far is a reboot.
The Ctrl key is not actually stuck down. I have a keyboard utility that indicates when a key (including the ctrl key) is pressed. When this problem is present, the utility does not indicate that the key is pressed.
So something in Windows has got upset. Right now it is a real pain because I have some serious calculations going on that will take another 8 or 9 hours to finish so I cannot reboot the PC.
I rather think I must press a combination of keys accidently to cause this problem to happen but I have no idea which keys. Does anyone know
1) Why this problem occurs
2) How to fix the problem once it has occurred
3) How to stop the problem from recurring
TFAI

Hi
I dont know what you mean with Did reinstall. It is really not be easy to say what the problem can be. Maybe some virus or anything else can have influence on to this.
Unfortunately I have really no answer to this. In my opinion you should back up your data or save all them on second partition if you have one and reinstall the OS using recovery media. Only on this way the unit will be clean preinstalled and you can check if the problem still persists.

ThinkPad Yoga - Keyboard key stucks - how to remove it correctly

Hi everybody,
this is maybe a simple and stupid question but I won't do anything wrong.
One of my keyboard keys does not work correctly, I think there is something under the key which is blocking because when I press the key I feel a stronger resistance than on the other keys. Sometimes I need to press the key 3 or 4 times before the letter is written - realy annoying
Obviously I should remove the key and clean it or remove whatever is under the key. Since my ThinkPad Yoga is quite new I don't want to damage it or lose my warrenty through "learning by doing"...
So can anybody tell me how to remove a key from the ThinkPad Yoga keyboard correctly and reassemble it correctly as well? -> without any damage
Reagards,
Ben

Thanks for the link, but don't you think there is a possibility to remove a single key and not the whole keyboard?
I found this video for "ThinkPad keyboards" - however, like you mentioned the lift and lock keyboard is probably a special case.
Does anyone know if the method from the video works for the TP Yoga also?

Is there a way to reverse the Function (Fn) Keys on the ThinkPad T540p and Windwos 8.1?

I recently purchased an I ThinkPad T540p, and install there Windows 8.1 Enterpirse.
Then I download and install all drivers from lenovo site including upgrade BIOS to version 2.07
Then I have noticed that the default for the keys where F1 and F2, etc. usually are, are now the mute and volume buttons. To access the F1, F2....F12 keys, you now have to press Fn + your desired F key.
Is it possible to reverse the Function keys? I would much rather press Fn + F1 to mute than have to press press Fn + F1 to access F1.
Thanks you in advance.
Solved!
Go to Solution.

Hi,
Welcome to Lenovo Community Forums!
Check in BIOS -> config -> Keyboard if there is an option to switch between default and legacy mode.
If you don’t find that option, you may try the Fn+esc combination that changes the function keys to legacy mode, but when the computer reboots, it might reset back to a default mode and you have to use Fn+esc again.
Hope this helps!
Best regards,
Mithun.
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Macbook stuck in control key

long story short my macbook air is stuck in the contol key causing the drop down menu to pop up everytime i click the trackpad, also meaning i cant type. now i found a work around where i just put the macbook in sleep then reboot but as soon as i try and type anything on the keyboard it activates the control key. so frustrating, ive never spilled anything on it, its always been in a case etc... anyone have his issue before? if so any solutions?

anyone?

Pavillion dv9000, Control Key is stuck

The system will boot up and run on any point & click. When I try to type anything in any program I get the message" you are holding the control key down, do you want to open the progeam in safe mode?" I open it in safe mode or regular mode and still get single ping and error message.

Have you checked both Ctrl keys to verify that they're not stuck? Have you ever spilled anything on your keyboard?

Has anyone else had a control key act stuck?

I couldn't type in my password the other day after some basic trouble shooting and calling Apple everyone was at their wits end. Then I saw it, in the lower left of safari in the grey boarder it said "display a menu" a quick search on my phone showed me it was the control key. After tapping this key a few times it went away. I currently have changed in the modifier keys section of the keyboard so caps lock is the control key and the control key functions are controlled by the caps lock. interesting thing is that caps lock isn't on all the time, i.e. just like how the control key was acting. I can't feel anything under the key, nothing has been spilled, the key works fine as CAPS LOCK, its just when the control is assigned to do control functions and only then, even assigning no action to it works. should i reinstall the last update? should I reinstall the OS? I did a time machine back up too, that didn't fix it.

Does it really matter whether anyone else has? If you have, that's a problem for you whether or not anyone else has experienced the same issue. Call Apple tech support or take the iPad to an Apple Store, if there's one in your area, and they'll replace the iPad unless it's determined that the problem was caused by some sort of accident rather than a factory defect.
Regards.

T440s Control key getting stuck

I have a T440s touch screen version running windows 8.1 64bit Pro and using the latest 2.26 firmware.
Most of the time I use the laptop on an Ultradock with no issue.
However on the odd occasion when I use the laptop standalone I use the trackpoint (not sure if this relevant) and have found the computer is acting as if control is being presed. I am certain I have not used the Shift or control key and sticky keys is not on. When this problem occurs no amount of pressing control or shift resolves the problem and the only way to recover is to reboot the computer.
Anyone seem this issue or know how to solve it.

OK
So I've been doing a little more research and the only thing I can find is on some old ASUS and Toshiba forums with people reporting similar issues.
The most promising solution seems to be to disable 'Pinch to Zoom' on the trackpad driver. I'll give that a go and see how things progress.
As a side note I've only had the laptop a couple of months and I am pretty sure I didn't have the issue when I bought it, although it has since been upgraded to Win 8.1 from 8.0 and all firmware/driver patches applied (firmware 2.25 mentions some shift/control key fixes...Hmmmm...).

Control key appear stuck but isnt

On my keyboard it is showing as though the control key is being pressed when it is not. Any form of tying brings up only symbols. It is not the keyboard I changed to a new keyboard and the error still occurs, cannot do anything with the unit. Cant boot in safe mode or reset smc because keys are appearing pressed. How to fix this

On my keyboard it is showing as though the control key is being pressed when it is not. Any form of tying brings up only symbols. It is not the keyboard I changed to a new keyboard and the error still occurs, cannot do anything with the unit. Cant boot in safe mode or reset smc because keys are appearing pressed. How to fix this

Why does my firefox intermittently (and seemingly randomly) behave as though my control key is stuck on, even though my keyboard behaves normally in every other program? AND it will also randomly change my keyboard mapping to an international one.

I will be using firefox, and for some reason, it behaves as though control key is being held down. If i use the mouse wheel, the page zooms. If I press the letter 'o', the "Open file..." dialog opens. But I'm not holding control. If, while this is happening, I switch to another application like Notepad, it behaves normally. But then I'll go back to firefox and the problem is still there. It seems to randomly start and stop.
Also, in a possibly related problem, my keyboard mapping will change from my default US to some other foreign mapping where shift-6 incorrectly outputs '?' instead of '^', for example.

I will be using firefox, and for some reason, it behaves as though control key is being held down. If i use the mouse wheel, the page zooms. If I press the letter 'o', the "Open file..." dialog opens. But I'm not holding control. If, while this is happening, I switch to another application like Notepad, it behaves normally. But then I'll go back to firefox and the problem is still there. It seems to randomly start and stop.
Also, in a possibly related problem, my keyboard mapping will change from my default US to some other foreign mapping where shift-6 incorrectly outputs '?' instead of '^', for example.

Switch the function and control keys

Sounds like a stupid request but my life would be much simpler if my Lenova T540p keyboard had the function and control keys switched. I use the control key ALOT and having it to the far left hand lower corner would be awesome.
Thank you.
R

Hey there Redrabbit,
Try your BIOS. For me (Thinkpad T540p), it's in Config>Keyboard/Mouse>Switch FN and CTRL keys.

Retrival of Control Key of Operation & Table underneeth the structure

Hi Experts,
Right now i'm working on PP and PM related stuff, I'm in the middle of the project and stucked down at a point in how to retrive the control key of operation that triggered the update in production order: opoerational view. (CO03).
Also i have a small question on how to findout the underlying table for a particular field(any field in a screen), when done F1 on that particular field the technical details says as table name but it is actuallya structure. So how should i find the table underneeth the structure where the particular data is being stored.
Or how should i retrieve the data if i couldn't figure out the table, is there some way that i can retrie the data using the structure.
Thanks for your contribution.
Regards
Rich

Hi Rich,
This is a common problem.One of the best and easy way is use the transaction ST05 for trace.lemme explain in detail.
1.go to ST05 transaction
2.switch trace on
3.take your screen where the field resides
4.enter value in this field and other required field
5.then save the screen
6.go to ST05.
7.stop the trace
8.click on display trace
9.you will get a detailed log what all happend
10.search the log with 'update' or 'insert' word or search with the field.
11.you can find some table name.
12.check that table contains the record which you saved.
Sure this will help
Another Way
1.go to transaction se84.
2.take ABAP dictionary
3.go to Fields
4.Give the field name in table field /structure field
if you are lucky you will get in this
Regards
Shibu Kurian

ThinkPad T540p Control key stuck

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