How do I fix the mouse after pairing with Bluetooth?

I have a laptop with Ubuntu 12.04 LTS on it.

I paired a Bluetooth mouse with it, which caused the touch pad on the laptop to stop working.

After the computer was suspended over night, I tried to use the mouse when it said:

Mouse is trying to access your computer, grant access?

But I can't click the buttons as now neither the touch pad nor the mouse works.

I can't alt+ tab to the window as it opens under the other windows and does not show in the list.

I tried enabling mouse control via the keyboard using Universal Access but I don't have a keypad on my laptop.

Good question. Here is a workaround.

1. Open a terminal. Use the windows key to open the HUB and type terminal and use the arrows keys to open a terminal.
2. Type the command xinput in the terminal. That will give you a list of the input keyboard and pointer inputs on your computer. It will look something like the table below.
3. Find the entry that says touchpad and enable it as follows. You can enable it by typing xinput set-prop 12 "Device Enabled" 1 (set-prop means set the property and the 1 means put it on). To switch it off, for instance, you would use xinput set-prop 16 "Device Enabled" 0.
4. Hit the button you want and enjoy control over your computer. Find out whether the error occurs again. If so, google, ask a question here or file a bug (in that order).

This is the table you will see in step 2:

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ Laptop_Integrated_Webcam_1.3M             id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]

This is a comparable question: How to disable the touchpad?