Big Picture Mode issues when launching it directly from getty (Linux)

[Pelxus]

Recently re-partitioned and re-installed my system, trying to do things a bit differently. One of those things includes making sure that my more performance centric apps get all the resources they can. Steam installed and plays fine when I use my window manager. Big picture mode works perfectly there as well.

However when I launch it directly (using xinit), it doesn't seem to ge the proper ques for my screen resolution. The image is improperly scaled, and most of it is cropped, making it totally unusable.

my .xinitrc below:

if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

xsetroot -cursor_name left_ptr &

#Pick a session
session=${1:-i3}

case $session in
  i3		) exec i3;;
  steam 	) exec steam -bigpicture w 2560 h 1440 >> ~/.steamLog;;
  blender	) exec blender -p 0 0 2560 1440;;
  #Not specified, running default
  *) exec $1;;
esac

The other options work great, and I've tried a couple permutations of '-w' and '-h' in an attempt to force steam to use my resolution.

Any help would be greatly appreciated!

[Pelxus]

Once step forward....

In ~/.steam/steam/config/config.vdf on line 103 (YMMV) there is a field for "VerticalRes". I set that to my vertical resolution, then launched steam -bigpicture with xinit and it worked!

I jumped into a Risk of Rain, and it wouldn't fullscreen....It just floated as a window over steam big picture

I assume I'm having this issue because my resolution is greater than 1080p, but I'm not sure how to move forward. I'm downloading more games to see if it's a general issue, or just specific games.