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 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs