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Hello, i have a similar issue.

I run a TV730/Y-R0018 keyboard/mouse combo for my logitech revue

it works sometimes & not others, i have tracked it down to 1 possible cause.

I have have the keyboard lid shut & boot the PI, it never works, even if i unplug & re plug the little USB adapter in.,

if i boot the pi with the lid on the keyboard open & not touch anything it doesnt work

however if i boot the pi with the lid on the keyboard open, and consitantly move my finger on the touch pad until Xbian fully loads to the gui, it works,

I assume that there is some type of communication that the keyboard ->adaptor-> pi have during boot, & only boot..

it would be nice if this check could be done in intervals...etc...

anyone have any ideas?

First of all, did you tried a powered usb hub?

:facepalm:

with the testing i have done i thought that maybe it was a given

keyboard works fine witrh or without powered hub. just doesnt seem to connect unless i consitantly keep the keyboard active

Can you post the output of in both situations (so when it works and when it doesn't)

root@xbian:/# lsusb
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 005: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]