New mac user here. Just got hold of two well kept MacBook pro 2012 running MacOS Catalina. One of them has no battery and runs directly on AC power (plugged in). The other one has batteries that need replacement (more on that in another question).
I want to enable right click and single tap actions on the trackpad. However, when I click on Trackpad in system settings, it says that it is searching for a 'bluetooth trackpad' while showing nothing about the trackpad that I am actually using (says "No Trackpad Found").
On searching the internet, I found some other people had this issue as well and folks on the apple forum suggested resetting the SMC (system management controller) on the mac. Now this SMC is responsible for managing power so it looks like this could be a power related issue.
However, none of them said they ran their macs on AC power directly (like me). So what do you think could this be due to?