I want to do a small computer just for internet browsing. I dont want to load a desktop environment to keep RAM, CPU and GPU ussage as low as possible. The computer is going to run on a ARM CPU. I dont care with Distro I use, I thought about good old plain Debian.
In /usr/share/xsessions/ create a file in the ".desktop" format to create your custom, minimal session. For running Google Chrome as the only application after logging in, do this:
[Desktop Entry]
Type=Application
Exec=google-chrome
Name=Google Chrome
Comment=Testing
Restart your display manager, e.g.
sudo restart lightdm # or kdm, gdm, etc.
Or simply log out.
"Google Chrome" should appear in the session list to select (next to regular Unity or other DEs you have installed).
Log in and enjoy.
XDM is a very minimal display manager - LightDM, GDM and KDM are quite "big". Install that using the package xdm and reconfigure the default for when your system boots up using
sudo dpkg-reconfigure lightdm
Configure your display manager to automatically log in a specific user. See the documentation for your display manager.
