bluetooth keyboard prevents suspend

[Pétùr <peturvilj@gmail.com>]

I have set my BIOS configuration to allow usb devices to wake up the
computer. I used my mouse or my usb keyboard to wake up the system.

But I just replaced my usb keyboard with a bluetooth one. My bluetooth
adapter is a dongle connected to a usb port.

Everytime I suspend (no matter which method), the computer wake up
immediately (because it detects some connecting activity from the
bluetooth keyboard).

I have to disconnect the bluetooth keyboard with the hardware button
before suspending. Then I can suspend and wakeup with the mouse.

Is there a way to suspend without turning off the buetooth keyboard first?

Cheers,
Pétùr