Solved: Brightness control keys do not work on Asus Laptop

So, the brightness keys on my Asus Laptop do not work anymore.  All other Fn keys still work, but the Fn+F5 and Fn+F6 keys which control brightness do not work anymore.

The way to solve this problem is as follows:

Initiate an update of the driver of your monitor. This can be accomplished in many ways, for example:

1. Right-click on the desktop
2. Select "Display settings", then
3. Select "Advanced display settings"
4. Select "Display adapter properties"
5. Switch to the "Monitor" tab
6. Click on "Properties" for the monitor
7. Switch to the "Driver" tab
8. Click "Update driver".

Alternatively, you can:

1. Hit Win+Pause to open the "System" window
2. Click "Device Manager"
3. Find your monitor under "Monitors"
4. Right-click on the monitor and select "Update Driver".

Once the "Update Driver Software" dialog is up:

1. In the wizard which prompts you whether you want to search automatically or browse your computer, lie and say that you want to browse your computer.  (Windows is so messed up that you have to lie to it to coax it to work.)
2. On the next screen, do not browse anything, select "let me pick from a list of drivers on my computer".
3. On the next screen, select "Generic PnP Monitor" and click "Next".
4. You are done.

Source:
http://visihow.com/Restore_Lost_Brightness_Control_app_in_ASUS_Laptops_After_Updating