I use Awesome as my WM and I don't know how to make my terminal window take full tiling space on my screen. My resolution is 1366x768.
Terminals and other character based windows can set hints (the WM_NORMAL_HINTS
) which can specify, among other things, resize increments.
These increments then tell the window manager that the window in question can only be resized in units of the increment (any amount less than that and the application can't use it).
This is done to avoid having to deal with the inability to display a character in partial cells.
Your terminal is providing these hints (use xprop WM_NORMAL_HINTS
and click the window to see them) and so awesome is only sizing by that increment and the space left at the bottom there is smaller than the increment unit and cannot be assigned to the terminal window.