Keyboard Response Problem

Hey All
I have a 2010 Macbook Pro 2.4IntelCore 2 Duo 4GB Ram and a third party 500gb Hybrid HD.
I pruchased the mac used and it has worked well for the most part, save for the keyboard. Here is the issue.
First, the left shift key never worked. Sometimes the ikcomma arrows wouldn't work but not often. It reset everything according to many of the instructions here. To no avail. So I figured it was a hardware problem. I saved up and bought a new keyboard, installed it and it didn't fx anythng.
Now, the key responses are getting worse and worse. I can shut down the computer and ket the key to work occasionally, as you are seeing with my typing. But it takes at least 20 minutes of the mac sitting for the keys to register at all now. If i tap them repeatedly, it makes no difference.
So I am at a loss. I have reset everything software/SMC/etc multiple times, I've replaced the keyboard with new stuff, and it has never been dropped, gotten water damage, anything.
What else could be causing this problem? this morning the arrow keys stopped responding, so the problem is spreading... My job requires immense amounts of typing, so I can't be caught without a keyboard for a few days. Trying to get it diagnosed now, because it is spreading...
Any suggestions are much appreciated.
Austin

I am not surprised at the unfavorable results regarding the Pram reset and OS installation. From my perspective that tends to support my thesis that your MBP was defective when you got it. The fact that the external keyboard works tends to confirm that.
The only solution is to replace the MBP keyboard, which is a fairly complex endeavor in a Unibody MBP. You may look at iFixit.com for pricing and instructions for what is involved (do it yourself). To have Apple do it probably is not cost effective.
Often a liquid spill is the cause of such a problem. I hope that for your sake the difficulties are confined to the keyboard and do not migrate to other parts of the MBP.
Ciao.

Similar Messages

Slow Keyboard Response

I'm developing applications in flex and notice there is a
slow response from text input boxes that sometimes miss keystrokes.
This is particularly noticeable in login entry forms where keying
in username / password which is normally done very rapidly, will
often miss key strokes.
I've tried upping the frameRate to 60 in the application,
however this does not seem to improve the situation.
I'm just starting to develop a new web content application
that will require lots of keying, and this response issue will kill
the usability.
Cheers,
ap

Vygo,
Are you experiencing the problem on a Vista Machine? I was
suspicious that it's a potential problem with Vista and not so much
Flex.
On google I found others who had reported keyboard response
issues with Vista. I did a regedit patch but that has not solved my
problem.
I'll do some more testing on one of XP machines and make
sure.

Delayed Keyboard Response

I am using a Logitech K750 Solar Powered Wireless Keyboard which uses a USB transmitter not Bluetooth. I am using it with a late 2009 iMac with 8GB of Ram and OSX Mavericks.
It wasn't always this way but for some time now, when I type I occasionaly get a delayed response to my keystrokes, including the dreaded "spinning beachball." It takes a second or two for the display to catch up to my input (I don't type THAT fast!) and this is quite annoying and disturbs my workflow.
Originally I thought it was the Logitech keyboard that was the problem, but eventually they told me to try the original bluetooth wireless keyboard that came with the iMac to see if it happened with that too. IT DID!
So Logitech is off the hook.
Does anyone have any idea what might be causing this problem? I have 8GB of memory and tons of hard drive space, so I doubt either of those are an issue.
Does anyone think it could be a wireless issue and if I got a USB chorded keyboard the problem would disappear? I guess I will have to try that but since the bluetooth keyboard came with the iMac, it should work even though its wireless.
If anyone has an idea here, I'd love to hear it.
Thanks.

Hello Jeff Friedman,
I'd suggest resetting your system's PRAM.
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
The following article also provides a few other places to check for potential causes for your Mac's slow response times.
OS X Mavericks: If your Mac runs slowly
http://support.apple.com/kb/PH13895
Cheers,
Allen

Keyboard response chang in iOS 8.0.2 for anyone else?

Keyboard response chang in iOS 8.0.2 for anyone else?

Other people have reported issues with the keyboard in iOS 8. I had some problems and I reset all settings and that fixed most of the issues - everywhere but in this forum. But the keyboard problems in this forum are a as a result of the crappy software that this forum runs on.
First reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider if it appears on the screen - let go of the buttons. Let the iPad start up. See if that does any good.
If that made no difference, try this. Reset all settings. You will not lose any data, but most of the device settings will have to be entered in the settings app again. Settings>General>Reset>Reset all Settings.

A possible solution for "foreight language keyboard shortcut" problem...

Hi(Bonjour)!
Everyone know the problem of losy keyboard layout when Final Cut is used with foreight language keyboard. We loose the COMMAND-Q shorcut.
As PieroF suggested in many posts in final cut express forum, there is a workaround:
"+I just installed Leopard and I ran into this keyboard shortcut problem.+
+I can confirm that:+
+a. the problem exists also with the Italian keyboard (in addition to other languages, as pointed by other posters)+
+b. the workaround I described in my previous answer works fine :+
+- close FCE (if open)+
+- open System Preferences/International/Language+
+- drag English to the first place on top of the other languages+
+- drag your own language (Italian in my case) again on top of English (at the end the window will show the same original settings, but something happened in the heart of Leopard...)+
+- close System Preferences+
+- open FCE: now all shortcuts work as expected, and are correctly listed with their corresponding menu commands+
+It's a workaround, it's not convenient (I'd better have this bug fixed), but apparently you have to apply it only once for each system startup.+
Piero "
As stated by Piero, you have to follow this procedure after each computer startup.
I found a way to restore the COMMAND-Q shortcut with the keyboard and mouse system pref panel.
Simply add Final Cut application and add a +custom shotcut+. Be careful to type exactly the "Quit Final Cut Express" menu.
This solution allows to restart the computer.
It's work with Final Cut Express and Final Cut Pro under Leopard 10.5.4.
Michel Boissonneault

Hi Michel,
I like your suggestion because the keyboard shortcuts defined in the system preferences do not require redefinition at each startup. So in theory we could define all missing/wrong shortcuts this way, and not only the cmd-Q as you suggested. Boring, but we could do it once for all.
The only problem is that I don't know how to define shortcuts for submenus, for example "Render Selection/Both": it seems system preferences allows only to define shortcuts for the menu ("Render Selection" - in this case absolutely useless) but not for the submenu.
Do you know a way ? (I looked in the help, which didn't... help).
Piero

Weird dreamweaver keyboard mapping problem

weird dreamweaver keyboard mapping problem:
Hope this solution helps someone out. If you have q's, ask
and I will try to help.
I was having a weird problem in dreamweaver... Whenever I was
in code view and typed "shift+i" to make a capital "I", instead it
would paste from the clipboard.
I finally figured out what was happening. I compared the
menu.xml in my app support folder in the user library to the
original menu.xml file that was in the application folder. I went
through until I came across the diff:
menu.xml in my library/app support folder:

<shortcut key="Cmd+Ins" name="Copy2" platform=""
command="if (dw.canClipCopy()) { dw.clipCopy() }"
domRequired="FALSE" id="DWShortcuts_HTMLSource_Copy2" />
<shortcut key="Shift+Ins" name="Paste2" platform=""
command="if (dw.canClipPaste()) { dw.clipPaste() }"
domRequired="FALSE" id="DWShortcuts_HTMLSource_Paste2" />
<shortcut key="Shift+Del" name="Cut2" platform=""
command="if (dw.canClipCut()) { dw.clipCut() }" domRequired="FALSE"
id="DWShortcuts_HTMLSource_Cut2" />
orig menu.xml file:

<shortcut key="Cmd+Ins" name="Copy2" platform=""
command="if (dw.canClipCopy()) { dw.clipCopy() }"
domRequired="FALSE" id="DWShortcuts_HTMLSource_Copy2" />
<shortcut key="Shift+Ins" name="Paste2" platform=""
command="if (dw.canClipPaste()) { dw.clipPaste() }"
domRequired="FALSE" id="DWShortcuts_HTMLSource_Paste2" />
<shortcut key="Shift+Del" name="Cut2" platform=""
command="if (dw.canClipCut()) { dw.clipCut() }" domRequired="FALSE"
id="DWShortcuts_HTMLSource_Cut2" />
There was a diff in the "platform=" tags. The orig stated
[platform="win"], my config stated [platform=""] (nothing in
between the ""'s). So, I reset the platform tag to be
[platform="win"] in my settings and then relaunched dreamweaver. It
fixed the problem.
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Calling1.4.1 signed applet from Javascript causes keyboard/focus problems

Pretty sure there's a JRE bug here, but I'm posting to forums before I open one in case I'm missing something obvious :-)
This issue may be specific to IE, I haven't tested elsewhere yet. Our web application is centered around a signed applet that is initialized with XML data via Javascript. We first noticed the problem when our users started upgrading from the 1.3.x plug-in to the 1.4.x plug-in. The major symptom was that shortcut keys stopped working. I debugged the problem off and on for about a month before I boiled it down to a very simple program that demonstrates the issue (included below). Basically, the program has a function that adds a JButton to a JPanel and registers a keyboard listener (using the new DefaultKeyboardFocusManager class) that prints a message to the console. This function is called by the applet's init() method, as well as by a public method that can be called from Javascript (called callMeFromJavascript()). I also included a very simple HTML file that provides a button that calls the callMeFromJavascript() method. You can test this out yourself: To recreate, compile the class below, JAR it up, sign the JAR, and put in the same dir with the HTML file. Load the HTML file in IE 5.0 or greater, and bring the console up in a window right next to it. Now click the button that says init--you should see the small box appear inside the button that indicates it has the focus. Now press some keys on your keyboard. You should see "KEY PRESSED!!!" appearing in the console. This is proper behavior. Now click the Init Applet from Javascript button. It has removed the button called init, and added one called "javascript". Press this button. Notice there is no focus occurring. Now press your keyboard. No keyboard events are registered.
Where is gets interesting is that if you go back and make this an unsigned applet, and try it again, everything works fine. This bug only occurs if the applet is signed.
Furthermore, if you try it in 1.3, signed or unsigned, it also works. So this is almost certainly a 1.4 bug.
Anyone disagree? Better yet, anyone have a workaround? I've tried everything I could think of, including launching a thread from the init() method that sets up the components, and then just waits for the data to be set by Javascript. But it seems that ANY communication between the method called by Javascript and the code originating in init() corrupts something and we don't get keyboard events. This bug is killing my users who are very reliant on their shortcut keys for productivity, and we have a somewhat unique user interface that relies on Javascript for initialization. Any help or suggestions are appreciated.
================================================================
Java Applet (Put it in a signed JAR called mainapplet.jar)
================================================================
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MainApplet extends JApplet implements KeyEventDispatcher
    JPanel test;
    public void init()
        System.out.println("init called");
        setUp("init");
    public void callMeFromJavascript()
        System.out.println("callMeFromJavascript called");
        setUp("javascript");
    private void setUp(String label)
        getContentPane().removeAll();
        test = new JPanel();
        getContentPane().add( test );
        JButton button = new JButton(label);
        test.add( button );
        test.updateUI();
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    public boolean dispatchKeyEvent(KeyEvent e)
        System.out.println("== KEY PRESSED!!! ==");
        return false;
}================================================================
HTML
================================================================
<form>
<APPLET code="MainApplet" archive="mainapplet.jar" align="baseline" id="blah"
     width="200" height="400">
     No Java 2 SDK, Standard Edition v 1.4.1 support for APPLET!!
</APPLET>
<p>
<input type="button" onClick="document.blah.callMeFromJavascript();" value="Init Applet via Javascript">
</form>

I tried adding the requestFocus() line you suggested... Same behavior.
A good thought, but as I mention in my description, the applet has no trouble gaining the focus initially (when init() is called). From what I have seen, it is only when the call stack has been touched by Javascript that I see problems. This is strange though: Your post gave me the idea of popping the whole panel into a JFrame... I tried it, and the keyboard/focus problem went away! It seems to happen only when the component hierarchy is descended from the JApplet's content pane. So that adds yet another variable: JRE 1.4 + Signed + Javascript + components descended from JApplet content pane.
And yes, signed or unsigned DOES seem to make a difference. Don't ask me to explain why, but I have run this little applet through quite a few single variable tests (change one variable and see what happens). The same JAR that can't receive keyboard events when signed, works just fine unsigned. Trust me, I'm just as baffled as you are.

Which part of the machine is related to the keyboard flex problem ?

Mine is T420s
And I got a keyboard flex problem.
Actually which part is related to this problem ?
Isn't it inclusive to fix this problem in the warranty ?
thx

Mine doesn't exhibit any keyboard flex and I don't think it's a common issue with T420s; anyway:
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T420s-Keyboard-Flex/td-p/454851/highlight/t...
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/t420s-keyboard-flex/m-p/755255/highlight/tr...
T420s i5-2520M HD3000 480GB Crucial M500 SSD 8GB RAM Ericsson F5521gw
T430 i5-3210M HD4000/NVIDIA 5400M 512GB Crucial MX100 SSD 12GB RAM Ericsson H5321gw

JTextField: How to modify keybinding / keyboard response?

Hello Experts,
For a certain programming purpose, is there a way to modify keyboard response?
I have created a JTextField txtSample. When it gets the focus, I want it to behave as following:
1. When user presses '+' key, instead of printing '+' in the text field, I want to do some actions and the '+' is not printed.
2. When user presses 'a' key, instead of printing 'a' in the text field, I want 'o' to be printed.
I have done the following for the first purpose, but it doesn't work:
Action addTrans = new AbstractAction() {
     public void actionPerformed(ActionEvent e){
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txtSample.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PLUS, 0), "addTrans");
txtSample.getActionMap().put("addTrans", addTrans);Any advice would be greatly appreciated.
Patrick

camickr,
First amazing thing, the first time I clicked on the link
Works fine is this example:
http://forums.sun.com/thread.jspa?forumID=57&threadID=622030 it gave an error message.
Second amazing thing, I checked on the API of KeyStroke
getKeyStroke
public static KeyStroke getKeyStroke(char keyChar)
    Returns a shared instance of a KeyStroke that represents a KEY_TYPED event for the specified character.
    Parameters:
        keyChar - the character value for a keyboard key
    Returns:
        a KeyStroke object for that key
getKeyStroke
public static KeyStroke getKeyStroke(int keyCode,
                                     int modifiers)
    Returns a shared instance of a KeyStroke, given a numeric key code and a set of modifiers. The returned KeyStroke will correspond to a key press.
    The "virtual key" constants defined in java.awt.event.KeyEvent can be used to specify the key code. For example:
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        * java.awt.event.KeyEvent.VK_TAB
        * java.awt.event.KeyEvent.VK_SPACE
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        * java.awt.event.InputEvent.SHIFT_DOWN_MASK
        * java.awt.event.InputEvent.CTRL_DOWN_MASK
        * java.awt.event.InputEvent.META_DOWN_MASK
        * java.awt.event.InputEvent.ALT_DOWN_MASK
        * java.awt.event.InputEvent.ALT_GRAPH_DOWN_MASK
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        * java.awt.event.InputEvent.SHIFT_MASK
        * java.awt.event.InputEvent.CTRL_MASK
        * java.awt.event.InputEvent.META_MASK
        * java.awt.event.InputEvent.ALT_MASK
        * java.awt.event.InputEvent.ALT_GRAPH_MASK
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        modifiers - a bitwise-ored combination of any modifiers
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And last, yes, you are right. It would be better to use DocumentFilter to serve
When user presses 'a' key, instead of printing 'a' in the text field, I want 'o' to be printed.Thanks for all your effort to guide me and sorry for the misunderstanding,
Patrick

(foreign) keyboard mapping problems

Many people, myself included, have voiced problems with keyboard mappings since updating to Leopard. It appears to particularly afflict people with non-US keyboards, but I may be wrong.
Does anybody out there have a generic fix? Manually modifying the keyboard map as the Latvians did seems to address (some of) the symptoms, not the underlying problem. Accordingly, it doesn't appear to be a general fix, as reported here:
http://m10lmac.blogspot.com/2007/10/fixing-leopards-latvian-keyboard.html
Here are some of the other posts I saw/wrote that make me think this is a SIGNIFICANT PROBLEM IN LEOPARD:
http://discussions.apple.com/thread.jspa?messageID=5794935&#5794935
http://discussions.apple.com/thread.jspa?messageID=5644709&#5644709
http://discussions.apple.com/message.jspa?messageID=5688731#5688731
http://discussions.apple.com/thread.jspa?messageID=5854794
http://discussions.apple.com/thread.jspa?messageID=5788789

Does anybody out there have a generic fix?
There is no generic fix because the problems are unrelated, except to the extent they represent goofs in creating certain files and failure to find these before release.
The Latvian keyboard issue is caused by errors in a particular .keylayout file. I don't know of any other similar layout with the same problem (In Tiger it was Macedonian and Romanian which had such errors). The Hanin Chinese IM problem is caused by errors in a couple of files particular to it -- all the other Chinese input systems have correct mappings. The X11 keyboard mapping problem concerns a different part of OS X than the others. The issues of QWERTY/AZERTY/QWERTZ in Chinese input were present in a different fashion in Tiger and earlier and many people have switched to a different IM called QIM to solve it. Having a dead Apple key is not related to ordinary character mapping issues.
Your own issue with ViaVoice is not totally clear to me, will try to respond in that thread.

Huge latency / keyboard-response-time when typing in IDE

I am experiencing a huge latency when working with some IDE's text editors, and keyboard response time is annoying long, sometimes what I have typed appears after a whole word is typed.
This happens in some IDE's which do some background parsing as I type,
hard drive led turns on before the text editor shows what I have typed which makes me suspect it has something to do with spin down (which yet doesn't make much sense)
any idea guys?
Last edited by startover (2011-09-10 15:56:12)

startover wrote:
I am experiencing a huge latency when working with some IDE's text editors, and keyboard response time is annoying long, sometimes what I have typed appears after a whole word is typed.
This happens in some IDE's which do some background parsing as I type,
I don't know which IDE you are using, but one which huge IO on background parsing sounds for me like Intellij IDEA :-)
There was a bug with java 7 which makes the entire text editor really slow.
http://youtrack.jetbrains.net/issue/IDEA-73128
But this is fixed with the release 10.5.2 which was released this week. In this case you should install the update, otherwise no idea.
Maybe you should post which IDE's you are using so the people here must not guess to help you.
hard drive led turns on before the text editor shows what I have typed which makes me suspect it has something to do with spin down (which yet doesn't make much sense)
any idea guys?

Potential keyboard hardware problem T410

Dear all,
since yesterday I have been experiencing a problem with my T410, which is potentially due to
a hardware issue with the keyboard.
A few specific keys are not working anymore. These seem to be the Power On key, the Fn key,
the Alt Gr key, and the ThinkVantage key.
I am assuming it is a keyboard hardware problem, since I cannot use the Power On button to
start the laptop. Fortunately, this is possible using the fingerprint reader start-up.
When the laptop is running (using Windows 7) everything is working fine, except the mentioned
buttons. I cannot access any Fn button functions (e.g. the reading lamp) or Alt Gr symbols (e.g.
the @ symbol which is on my keyboard on the 2 button) or power down with the Power button.
I tried various easy fixes:
* Making sure all drivers are up to date
* Remove and reattach the keyboard
* Static discharge procedure (unplug all power, 10 presses and 30 sec holding of power button)
* Checking Bios settings
* Replace battery
Unfortunately, these did not change the situation.
I am wondering if the simultaneous malfunctioning of these specific buttons points to a certain
hardware problem. I hope a replacement of the keyboard might solve this, but it could be an
issue with the motherboard.
Any hints would be welcome.
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MH
Solved!
Go to Solution.

Dear all,
thank you for your suggestions. Unfortunately, it was not the keyboard. It appears to
be a more serious problem. In fact, since yesterday the laptop does not boot correctly
anymore. The boot process is started, but I only end up with a black screen, and some
randomly colored first few lines at the top of the display.
It all points to a major malfunction. Unfortunately, the warranty expired 3 months ago...
Regards,
mh

TP Yoga 15 - Windows: Keyboard response too slow after coming back from hibernation

I've got the same issue as outlined in this thread for a Y50 - there seems to be a BIOS update to solve it, but what about TP Yoga 15? Quote:Simply put, In keyboard properties , the Repeat delay is default at maximum (eg, holding down a keyboard button and how fast it generates the key strokes). When the system is put in hiberanation, then turned on again to come back, the Repeat delay some how gets decreased to about 2/3 of what it originally is. https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Re-Y50-Windows-8-Keyboard-response-too-slow-after-coming-back/td-p/1676309/page/1

hi guys,
Can you please provide also these additional information:
(this is to check if the issue is isolated to a certain model number)
Model Number (eg. 59-xxxxxx):
Place of Purchase (eg. Amazon, Bestbuy, etc.):
In addition, the solution from this thread seems to be a good workaround (the app is for Win7 but may also work for Win8.1)
Regards
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Slow keyboard response, lagging

Hello - ever since the upgrade was pushed down to my GS3 my keyboard response has been very slow. It is very noticeable when I go to type in a URL, or do a search. It also is pretty slow when I go to start to text. It just doesn't type real time like it always has. Is anyone aware of this issue? Any help on troubleshooting would be appreciated. Thank you.

caflirt22:
Give this a try.....
menu > settings > application manager > swype over to all > .. then scroll down to Samsung keyboard & select it - then press > clear Cache / clear Data
It seems to work great so far. I just did it but we'll see. After my upgrade it seems to have kept the old keyboard or data has piled up just slowing the application down. Once I cleared the data the keyboard look changed but seems to work a lot better.

KVM/MOUSE/KEYBOARD/LAPTOP PROBLEM

Ok, just plugged in my KVM switch. I am using a PS2 p&p keyboars and a Microsoft tracker ball USB mouse that i have connected with a USB to PS2 adapter.
It all works fine when using the shortcuts, swapping between laptop and computer. But when it comes to moving the mouse on my other computer or using the keyboard i get no response at all.
I am at my wits end, after using the Live help and Phoning the company itself running a up a phone bill, they have not resolved the issue.
This is my final hope before chucking the annoying thing out my window.
Puppiie

I have a similar problem with a mouse that almost works. My model no is PS2KVM2 Linksys 2-Port KVM Switch. the mouse is a Microsoft Wheel Mouse Optical. It will move the cursor and click, but won't scroll with the wheel. Nor does my laptop recognize that I have a USB mouse plugged in (and disable the touch pad). If I plug the mouse directly into the laptop it works fine. There is no PS2 port on the laptop, but I have to use a PS2 adapter to plug into the KVM switch.
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