New user

[trinidad]

Many laptops actually hibernate rather than shutdown thus making certain changes can be confusing to new Linux users. Generally, (even though this is not a normal Linux function) NICs and a few other functions still run a while after shutdown. If you are confused by certain changes not taking effect immediately, try the following. To shut a laptop down completely press the shift key down and hold it before clicking shutdown, click shutdown and don't release the shift key until the laptop goes off. Laptops conveniently have battery power and many modern lap BIOS have this feature OEM default. It doesn't matter whether or not Windows is still on the machine. Numbers lock is often an issue on laptops because of  fn keys some even with triple functions. Common sense and knowing your laptop usually makes numbers lock a non-issue. Install the suggested default. Other things that can mess up changes to installs on machines that hibernate for a while at shutdown are dysfunctional cmos clocks and drive changes. Because of the nuisance of battery removal with laptops, it's best to reset the BIOS to factory default first, set the cmos clock, shutdown, restart and then make the changes you need to the BIOS, and then install Linux via a media boot.

Also any Linux system using lightdm will display the same issue with numbers lock, and you should always use whatever the BIOS default is for numbers lock during installation. The fact that you are having the same issue on several machines tells me you are not using the BIOS default numbers lock setting during installation. I'm approaching 100 installs, and have only had to deal with the numbers lock issue once, but then I always default the BIOS and set the clock before installing LL on any machine that I am preparing for someone else.

TC