Keyboard problems after sleep

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hi, all,

have bizarre problem mac pro.
after mac goes sleep, keyboard no longer recognized when machine wakes up. first basic details

computer: new mac pro (cylinder)
keyboard: usb das keyboard 4 pro (mechanical)
os: os x 10.10.1
mouse: logitech mx usb unifying receiver.

1. computer wake via mouse event or power button.
2. keyboard not wake computer.
3. no keyboard input after wake, no way login since cannot enter password.
4. unplugging keyboard , plugging in again fixes issue until next sleep cycle.
5. happens on usb ports, both on mac pro , on thunderbolt displays connected it.
6. happens on keyboards tried (i have tested 6 mechanical keyboards of different brands.)

weird part ...

started happening after moved houses, computer disconnected , moved new location.

exact same hardware/peripherals had no issues prior move.

guess setting has changed, don't know or how have happened.

ideas?
 

try smc reset.
 


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