Since I first bought my Logitech MX5000 combo it has never worked correctly on Ubuntu (back to 6.06 maybe…) after booting. The keyboard would work perfectly in the BIOS and even in GRUB, but as soon as I reached the (GUI) log-in screen my MX5000 would become unresponsive until I disconnected the USB Bluetooth receiver and plugged it back in. As you could imagine, quite tedious on every boot.

After doing a bit of research, this appears to be a fairly common issue. One suggestion that did work for me was to remove the bluez-* packages, but apparently there is the side effect of other Bluetooth devices no longer working. This isn’t an issue for me, so it’ll keep me happy until a real fix is in place.

Drop the following into your CLI if you’re having the same issue…
sudo apt-get remove bluez-cups bluez-pcmcia-support bluez-pin bluez-utils