I can confirm this Bug. Having the same issue with a Cordless Desktop MX700. The Mouse is working OK, but almost all Multimedia Keys are working only after I unplug and Replug the Cordless Receiver. I attached the xorg.0.log file, with the content of informations during the unplugging and replugging. Here is what the dmesg-output looks like when unplugging and replugging this device.
[ 129.856059] usb 3-1: USB disconnect, address 4
[ 133.885041] usb 3-1: new low speed USB device using uhci_hcd and address 5
[ 134.063559] usb 3-1: configuration #1 chosen from 1 choice
[ 134.088412] input: Logitech USB Receiver as
/devices/pci0000:00/0000:00:1d.2/usb3/3-1/3-1:1.0/input/input9
[ 134.136210] input,hidraw0: USB HID v1.10 Keyboard [Logitech USB Receiver] on
usb-0000:00:1d.2-1
[ 134.172670] input: Logitech USB Receiver as
/devices/pci0000:00/0000:00:1d.2/usb3/3-1/3-1:1.1/input/input10
[ 134.256194] input,hidraw1: USB HID v1.10 Mouse [Logitech USB Receiver] on
usb-0000:00:1d.2-1
Here the output of "sudo lsusb -v" - Limiting the output to the Logitech
receiver only:
Bus 003 Device 005: ID 046d:c50b Logitech, Inc. Cordless Desktop Optical
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0xc50b Cordless Desktop Optical
bcdDevice 21.00
iManufacturer 1 Logitech
iProduct 2 USB Receiver
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 98mA
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 63
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 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 190
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)
If you need any more details to analyse it - please let me know.
PS: I have tested the kernel proposed in Bug #281993 (regression fix for
Microsoft Keyboards). Didn't work.
PPS: I had the same issue in Hardy when letting the Keyboard running using the
evdev Driver. When disabling it and configuring the Keyboard/Mouse Manually, it
worked. The configurations that worked are documented here:
http://stargate.solsys.org/mod.php?mod=faq&op=extlist&topicid=7&expand=yes#111
http://stargate.solsys.org/mod.php?mod=faq&op=extlist&topicid=7&expand=yes#110
As you can see the keyboard and mouse drivers had to be explicitely used.
** Attachment added: "Xorg.0.log file"
http://launchpadlibrarian.net/21672248/Xorg.0.log
--
Regression: Multimedia keys on LX710 stopped working
https://bugs.launchpad.net/bugs/321740
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