Public bug reported:
(Guessing at kernel - but who knows?)
After boot or resume from hibernate my external keyboard doesn't work
until I replug it - the internal laptop keyboard is fine.
Karmic, kernel 2.6.31-8-generic - but it's been happening for a while
Toshiba Equium A100-306 laptop with a USB->PS/2 keyboard/mouse converter
that is identified by lsusb as:
Bus 004 Device 003: ID 0d3d:0001 Tangtop Technology Co., Ltd HID
Keyboard
(It's an unbranded cream blob on a usb cable with a short pair of PS/2 cables
coming out).
The keyboard as an IBM Model M (UK). No mouse is plugged into the adapter.
Here is the lsusb fragment for the device; the only thing that changes
in this output if I replug it is the device number.
Bus 004 Device 002: ID 0d3d:0001 Tangtop Technology Co., Ltd HID Keyboard
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0d3d Tangtop Technology Co., Ltd
idProduct 0x0001 HID Keyboard
bcdDevice 0.01
iManufacturer 0
iProduct 2 USBPS2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 4 HID Keyboard / Mouse
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 5 EP1
** UNRECOGNIZED: 09 21 00 01 00 01 22 40 00
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 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 6 EP2
** UNRECOGNIZED: 09 21 00 01 00 01 22 7c 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
external keyboard not working until replug
https://bugs.launchpad.net/bugs/421118
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