Thinkpad keyboard problem - some keys generate multiple keys when pressed

thinkpad keyboard problem - some keys generate multiple keys when pressed
For example, "t" generates "tr", "y" generates "yu", "backspace" generates "backspace" plus "IBM access connections", "m" generates "mn" and "n" generates "mn". Not all keys are wrong.
For what it's worth, the odd behaviour started shortly after a trip to Miami in which I had a meeting at a cafe in which we were undercover but it was pouring cats and dogs - it was like having a meeting in a sauna - so I am wondering if the high humidity could have caused the behaviour.
I tried replacing the keyboard but the new keyboard has the same problem.
The machine in question is a Thinkpad T23 running Windows XP Pro
Any help would be appreciated as I am now in Los Angeles using a borrowed Mac! :-)

i have something along the lines of the same problem.
http://bbs.archlinux.org/viewtopic.php?id=56777
my conclusion is something in the last system update screwed it up.

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Laptop Keyboard problem, some keys get randomly ignored

Hello,
This is a problem that occurs with all razer blade notebooks when running linux (does not occur in Windows 8); some keys get randomly ignored when you type at your normal speed, and it is very frustating especially when typing passwords or programming. At the moment we have to type very slowly in order to get all keystrokes caught. The keyboard has antighosting technology, maybe that info is useful.
This is the further we went in this post:
https://bbs.archlinux.org/viewtopic.php?id=161634
In that post, a forum partner proposed to modify "drivers/hid/usbhid/hid-core.c" and set "interval = 1;" right after the mouse pooling interval was set, around line 1134 of the file. When we use that modified kernel, the keyboard feels a little better but i still get ignored keys when typing at normal speed.
This are my usb devices:
[cristobal@orion ~]$ lsusb -vv -d 1532:
Bus 001 Device 003: ID 1532:0116 Razer USA, Ltd
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1532 Razer USA, Ltd
idProduct 0x0116
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 123
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 75
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 159
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 71
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 240
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Does anyone know, based on their experience, what could be the cause of the keyboard malfunction?
Does this type of error occur for some other notebooks too?
It would be great if someone could point me in the right direction for where to look.
Last edited by labotsirc (2013-08-31 17:27:38)

Jeroen)Mathon wrote:
A lot of people i know that are running arch with a Razorblade keyboard are seeming to be having a lot of problems.
Did the same happened to another keyboard like an (HP,Dell,Logitech,etc).
For all i know (Not a lot) I'm thinking it might have something to do with your usb?(Worst answer ever!)
Did you try a different port.
Please let me know if this worked .
On the side(What kernel version are you running?)
Hi. Well in this case the problem is with the Razer Blade Laptop's keyboard, therefore i cannot choose another port. You gave me an idea however, i will try to get any usb keyboard, plug it into the razer blade and make sure it works so that i can discard any major problem.

Weird keyboard problem - "7" "U" "J" "M" keys not working properly

The "7" "U" "J" "M" keys work sometime. I took it in to an apple store for repair. They replaced my keybord ($163 includes labor). I am still having the same problem. Also, my password contained one of the non-working keys (bummer), so I purchased an apple bluetooth keyboard and I can use the keys on the wireless keyboard when they do not work on my laptop. Called apple suport, they said take it back to the apple store. Any clues what is going on? And, yes I have not spilled anything on the laptop. Nobody else uses this laptop.
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This question was solved.
View Solution.

This is the keyboard part number:
For use in United Kingdom 595199-031
Here is the Service Manual:
Your Manual
See page 46.
Keyboards for sale at U.K. eBay:
http://www.ebay.co.uk/itm/HP-COMPAQ-CQ62-KEYBOARD-UK-589301-031-595199-031-Aeax6e00110-/321211003759...
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Save the folder to your desktop, double click it to install it your computer. (can take 40 mins to download)
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Hello!
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How does the keyboard compare to the one on the T400? I'm considering purchasing one for my desktop because I'm addicted to the TrackPoint.
When asking for help, post your question in the forum. Remember to include your system type, model number and OS. Do not post your serial number.
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My TPs: Twist 2HU: i5-3317U Win 8 Pro, 4GB RAM 250GB Samsung 840 | T420 4177CTO: i5-2520M, HD+, Win 7 Pro x64, 8GB RAM, Optimus, 160GB Intel 320 SSD, Intel 6300 WiFi, BT 3.0 | T400 2764CTO: P8700, WXGA, Win 7 Ult x64, AMD 3470, 8GB RAM, 64GB Samsung SSD, BT, Intel 5300 WiFi | A20m 14.1" PIII 500 (retired). Monitors: 2x Dell U2211h IPS 100% sRGB calibrated w/ Spyder3.

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Keyboard problems, not working keys and different connection with letters

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Ok, I try again, and I followed perfectly the process, the "UTILITY DISC PAGE" was due to the fact that the "P" button doesnt work, therefore, it get just option+cmd+R
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In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
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Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

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Thinkpad keyboard problem - some keys generate multiple keys when pressed

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