* Lenovo ThinkPad USB Keyboard: delayed release of Shift/Ctrl/Alt
@ 2010-07-12 9:08 Kirill A. Shutemov
2010-07-14 18:54 ` Kirill A. Shutemov
0 siblings, 1 reply; 2+ messages in thread
From: Kirill A. Shutemov @ 2010-07-12 9:08 UTC (permalink / raw)
To: linux-input
I've bought Thinkpad USB Keyboard (P/N 55Y9086) last week.
Unfortunately, it has very annoying issue. When you type fast enough
and you want to type one capitalized (Shift + a letter) you'll get two or
even three capitalized letters (e.g. WOrd instead of Word). The same
problem with Alt and Ctrl keys.
Windows users also complains about the issue. So it looks like a hardware
(or firmware?) issue.
Is it possible to workaround the issue in the driver or I have to return
the keyboard to the store?
lsusb -vvv output:
Bus 001 Device 009: ID 17ef:6009 Lenovo
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x17ef Lenovo
idProduct 0x6009
bcdDevice 1.22
iManufacturer 1 Lite-On Technology Corp.
iProduct 2 ThinkPad USB Keyboard with TrackPoint
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
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 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
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 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 185
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 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
--
Kirill A. Shutemov
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Lenovo ThinkPad USB Keyboard: delayed release of Shift/Ctrl/Alt
2010-07-12 9:08 Lenovo ThinkPad USB Keyboard: delayed release of Shift/Ctrl/Alt Kirill A. Shutemov
@ 2010-07-14 18:54 ` Kirill A. Shutemov
0 siblings, 0 replies; 2+ messages in thread
From: Kirill A. Shutemov @ 2010-07-14 18:54 UTC (permalink / raw)
To: linux-input
On Mon, Jul 12, 2010 at 12:08:47PM +0300, Kirill A. Shutemov wrote:
> I've bought Thinkpad USB Keyboard (P/N 55Y9086) last week.
>
> Unfortunately, it has very annoying issue. When you type fast enough
> and you want to type one capitalized (Shift + a letter) you'll get two or
> even three capitalized letters (e.g. WOrd instead of Word). The same
> problem with Alt and Ctrl keys.
>
> Windows users also complains about the issue. So it looks like a hardware
> (or firmware?) issue.
>
> Is it possible to workaround the issue in the driver or I have to return
> the keyboard to the store?
Any ideas?
> lsusb -vvv output:
>
> Bus 001 Device 009: ID 17ef:6009 Lenovo
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 8
> idVendor 0x17ef Lenovo
> idProduct 0x6009
> bcdDevice 1.22
> iManufacturer 1 Lite-On Technology Corp.
> iProduct 2 ThinkPad USB Keyboard with TrackPoint
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 59
> bNumInterfaces 2
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xa0
> (Bus Powered)
> Remote Wakeup
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> 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 1.10
> bCountryCode 0 Not supported
> bNumDescriptors 1
> bDescriptorType 34 Report
> wDescriptorLength 65
> 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 10
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 3 Human Interface Device
> bInterfaceSubClass 0 No Subclass
> bInterfaceProtocol 0 None
> iInterface 0
> HID Device Descriptor:
> bLength 9
> bDescriptorType 33
> bcdHID 1.10
> bCountryCode 0 Not supported
> bNumDescriptors 1
> bDescriptorType 34 Report
> wDescriptorLength 185
> 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 0x0008 1x 8 bytes
> bInterval 10
> Device Status: 0x0000
> (Bus Powered)
>
> --
> Kirill A. Shutemov
> --
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--
Kirill A. Shutemov
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-07-14 18:54 ` Kirill A. Shutemov
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