Setting up a New Ubuntu on Laptop

I recently installed another Ubuntu system on my originally Windows ROG laptop. 1. You can install the asusctl tool to control the specific hardware with the ROG, like the keyboard light, light bar around your machine and charge limit as well. Interestingly, when the ubuntu has a little difference between ones I previously installed. I think it's because the computer of this brand does something. 2. When the lid switches off, it just suspended off, so i can't get access from ssh. To change this, go for /etc/systemd/logind.conf file, and you would find many setting choices.

Here I want to talk about the systemd setting directory.

Normally, if we want to change the settings, we would like to do it in the Drop-in way, instead of directly changing the main configuration.

1. create a folder adding .d, the /etc/systemd/logind.conf.d

2. write files under 90-switch.conf. Here you would ask why 90. The settings will be loaded in alphabetical order. So .conf with bigger starting number will be loaded later, therefore they have a higher priority to overwrite earlier ones. Conventionally, the 10~50 is the system basic settings and 90~99 are defined by users so we can make sure the user defined settings will work.